!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETARPS ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE getarps(nx_ext,ny_ext,nz_ext,nzsoil_ext, & 2,83
dir_extd,extdname,extdopt,extdfmt, &
extdinit,extdfcst,julfname,nstyps, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext,latu_ext,lonu_ext,latv_ext,lonv_ext, &
p_ext,hgt_ext,zp_ext,zpsoil_ext,t_ext,qv_ext, &
u_ext,vatu_ext,v_ext,uatv_ext,w_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
soiltyp_ext,stypfrct_ext,vegtyp_ext, &
lai_ext,roufns_ext,veg_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,ubar_ext,vbar_ext,wbar_ext, &
ptbar_ext,pbar_ext,qvbar_ext, &
tem1_ext,tem2_ext,istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! ARPS version.
!
! Reads an ARPS file for processing by ext2arps, a program
! that converts external files to ARPS variables and format.
! This version is useful when you want to use an ARPS file
! with a different orientation or terrain than your final
! ARPS product so arpsr2h does not work.
!
!-----------------------------------------------------------------------
!
! AUTHOR: Keith Brewster
! November, 1995
!
! MODIFICATION HISTORY:
! 01/16/1996 (Yuhe Liu)
! Added three arguments to specify the "external" ARPS data file
! names and format.
!
! 2000/08/14 (Gene Bassett)
! Added multiple soil types, sfcdata variables and grid staggering
! for use with arps history format of external model data.
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdopt Option of external data sources
! extdfmt Option of external data format
!
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format
! julfname File name in yyjjjhhmm format
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! latu_ext latitude of external u points (degrees N)
! lonu_ext longitude of external u points (degrees E)
! latv_ext latitude of external v points (degrees N)
! lonv_ext longitude of external v points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! zp_ext height (m) (on arps grid)
! zpsoil_ext height (m) (soil model on arps grid)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s) (staggered grid, true n-s component)
! vatu_ext v wind component at u location (m/s)
! v_ext v wind component (m/s) (staggered grid, true e-w component)
! uatv_ext u wind component at v location (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! soiltyp_ext Soil type
! stypfrct_ext Soil type fraction
! vegtyp_ext Vegetation type
! lai_ext Leaf Area Index
! roufns_ext Surface roughness
! veg_ext Vegetation fraction
!
! tsoil_ext Soil temperature (K)
! qsoil_ext Soil moisture
! wetcanp_ext Water content on canopy
!
! snowdpth_ext Snow depth (m)
! ubar_ext Base state u-velocity (m/s)
! vbar_ext Base state v-velocity (m/s)
! wbar_ext Base state w-velocity (m/s)
!
! ptbar_ext Base state potential temperature (K)
! pbar_ext Base state pressure (Pascal)
! qvbar_ext Base state water vapor specific humidity (kg/kg)
!
! istatus status indicator
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
CHARACTER (LEN=*) :: dir_extd
CHARACTER (LEN=*) :: extdname
INTEGER :: extdopt
INTEGER :: extdfmt
INTEGER :: nstyps
CHARACTER (LEN=19) :: extdinit
CHARACTER (LEN=9) :: extdfcst
CHARACTER (LEN=9) :: julfname
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj_ext
REAL :: scale_ext,trlon_ext
REAL :: latnot_ext(2)
REAL :: x0_ext,y0_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
INTEGER :: nx_ext,ny_ext,nz_ext,nzsoil_ext
REAL :: lat_ext(nx_ext,ny_ext)
REAL :: lon_ext(nx_ext,ny_ext)
REAL :: latu_ext(nx_ext,ny_ext)
REAL :: lonu_ext(nx_ext,ny_ext)
REAL :: latv_ext(nx_ext,ny_ext)
REAL :: lonv_ext(nx_ext,ny_ext)
REAL :: p_ext(nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL :: zp_ext(nx_ext,ny_ext,nz_ext) ! Height (m) (on arps grid)
REAL :: zpsoil_ext(nx_ext,ny_ext,nz_ext) ! Height (m) (soil model)
REAL :: t_ext(nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL :: qv_ext(nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL :: u_ext(nx_ext,ny_ext,nz_ext) ! Eastward wind component (m/s)
REAL :: v_ext(nx_ext,ny_ext,nz_ext) ! Northward wind component (m/s)
REAL :: uatv_ext(nx_ext,ny_ext,nz_ext)
REAL :: vatu_ext(nx_ext,ny_ext,nz_ext)
REAL :: w_ext(nx_ext,ny_ext,nz_ext) ! Vertical velocity component (m/s)
REAL :: qc_ext(nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL :: qr_ext(nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL :: qi_ext(nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL :: qs_ext(nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL :: qh_ext(nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
INTEGER soiltyp_ext (nx_ext,ny_ext,nstyps) ! Soil type
REAL stypfrct_ext(nx_ext,ny_ext,nstyps) ! Soil type
INTEGER vegtyp_ext (nx_ext,ny_ext) ! Vegetation type
REAL lai_ext (nx_ext,ny_ext) ! Leaf Area Index
REAL roufns_ext (nx_ext,ny_ext) ! Surface roughness
REAL veg_ext (nx_ext,ny_ext) ! Vegetation fraction
REAL :: tsoil_ext(nx_ext,ny_ext,nzsoil_ext,0:nstyps) ! Soil temperature(K)
REAL :: qsoil_ext(nx_ext,ny_ext,nzsoil_ext,0:nstyps) ! Soil moisture (m3/m3)
REAL :: wetcanp_ext(nx_ext,ny_ext,0:nstyps) ! Canopy water amount
REAL :: snowdpth_ext(nx_ext,ny_ext) ! Snow depth (m)
REAL :: ubar_ext(nx_ext,ny_ext,nz_ext) ! Base state x velocity
! component (m/s)
REAL :: vbar_ext(nx_ext,ny_ext,nz_ext) ! Base state y velocity
! component (m/s)
REAL :: wbar_ext(nx_ext,ny_ext,nz_ext) ! Base state z velocity
! component (m/s)
REAL :: ptbar_ext(nx_ext,ny_ext,nz_ext) ! Base state potential
! temperature (K)
REAL :: pbar_ext(nx_ext,ny_ext,nz_ext) ! Base state pressure (Pascal)
REAL :: qvbar_ext(nx_ext,ny_ext,nz_ext) ! Base state water vapor
! mixing ratio (kg/kg)
REAL :: tem1_ext(nx_ext,ny_ext,nz_ext) ! Temporary work array
REAL :: tem2_ext(nx_ext,ny_ext,nz_ext) ! Temporary work array
!
!-----------------------------------------------------------------------
!
! Other external variable arrays
!
!-----------------------------------------------------------------------
!
REAL :: x_ext(nx_ext)
REAL :: y_ext(ny_ext)
REAL :: z_ext(nz_ext)
REAL :: xsc(nx_ext)
REAL :: ysc(ny_ext)
!
! REAL :: uprt_ext(nx_ext,ny_ext,nz_ext) ! x velocity component (m/s)
! REAL :: vprt_ext(nx_ext,ny_ext,nz_ext) ! y velocity component (m/s)
! real raing_ext (nx_ext,ny_ext) ! Grid supersaturation rain
! real rainc_ext (nx_ext,ny_ext) ! Cumulus convective rain
! real prcrate_ext(nx_ext,ny_ext,4)
! precipitation rate (kg/(m**2*s))
! prcrate(1,1,1) = total precip. rate
! prcrate(1,1,2) = grid scale precip. rate
! prcrate(1,1,3) = cumulus precip. rate
! prcrate(1,1,4) = microphysics precip. rate
! real radfrc_ext(nx,ny,nz) ! Radiation forcing (K/s)
! real radsw_ext (nx,ny) ! Solar radiation reaching the surface
! real rnflx_ext (nx,ny) ! Net radiation flux absorbed by surface
! real usflx_ext (nx,ny) ! Surface flux of u-momentum (kg/(m*s**2))
! real vsflx_ext (nx,ny) ! Surface flux of v-momentum (kg/(m*s**2))
! real ptsflx_ext(nx,ny) ! Surface heat flux (K*kg/(m*s**2))
! real qvsflx_ext(nx,ny) ! Surface moisture flux (kg/(m**2*s))
INTEGER :: istatus
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=3 ) :: fmtn
CHARACTER (LEN=80) :: timsnd
INTEGER :: lenrun, tmstrln
INTEGER :: i,j,k,ldir,ireturn
INTEGER :: ihr,imin,isec
REAL :: govrd
REAL :: xctr,yctr,dx_ext,dy_ext,tvbot,tvtop,tvbar
CHARACTER (LEN=80) :: runname_org
CHARACTER (LEN=80) :: cmnt_org(50)
INTEGER :: nocmnt_org,mapproj_org
INTEGER :: month_org,day_org,year_org
INTEGER :: hour_org,minute_org,second_org
REAL :: latnot(2)
REAL :: umove_org,vmove_org,xgrdorg_org,ygrdorg_org
REAL :: trulat1_org,trulat2_org,trulon_org,sclfct_org
REAL :: latitud_org,ctrlat_org,ctrlon_org
REAL :: dx_org,dy_org
REAL :: lat_org,lon_org
REAL :: dz_org,dzmin_org,zrefsfc_org,dlayer1_org,dlayer2_org
REAL :: zflat_org,strhtune_org
INTEGER :: strhopt_org
CHARACTER (LEN=256) :: grdbasfn_ext
CHARACTER (LEN=256) :: datafn_ext
INTEGER :: nchanl_ext,lengbf_ext
INTEGER :: lendtf_ext
INTEGER :: mp_opt_save
REAL :: time_ext
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'grid.inc'
INCLUDE 'phycst.inc'
INCLUDE 'mp.inc'
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
!
!-----------------------------------------------------------------------
!
! Build file names
!
!-----------------------------------------------------------------------
!
IF (myproc == 0 ) THEN
IF ( extdfcst == ' ') extdfcst='000:00:00'
lenrun=LEN(dir_extd)
ldir=lenrun
CALL strlnth
( dir_extd, ldir )
IF ( ldir == 0 .OR. dir_extd(1:ldir) == ' ' ) THEN
dir_extd = '.'
ldir = 1
END IF
IF( dir_extd(ldir:ldir) /= '/' .AND. ldir < lenrun ) THEN
ldir = ldir + 1
dir_extd(ldir:ldir) = '/'
END IF
lenrun = LEN( extdname )
CALL strlnth( extdname, lenrun )
IF( extdfmt == 1 ) THEN
fmtn = 'bin'
ELSE IF ( extdfmt == 2 ) THEN
fmtn = 'asc'
ELSE IF ( extdfmt == 3 ) THEN
fmtn = 'hdf'
ELSE IF ( extdfmt == 4 ) THEN
fmtn = 'pak'
ELSE IF ( extdfmt == 6 ) THEN
fmtn = 'bn2'
ELSE IF ( extdfmt == 7 ) THEN
fmtn = 'net'
ELSE IF ( extdfmt == 8 ) THEN
fmtn = 'npk'
ELSE IF ( extdfmt == 9 ) THEN
fmtn = 'gad'
ELSE IF ( extdfmt == 10 ) THEN
fmtn = 'grb'
ELSE
WRITE(6,'(a,a,a)') &
'Unknown format, ', extdfmt, '. Program stopped in GETARPS.'
! STOP
CALL arpsstop("GETARPS: unknown format",1)
END IF
READ(extdfcst,'(i3,1x,i2,1x,i2)') ihr,imin,isec
time_ext = FLOAT( (ihr*3600)+(imin*60)+isec )
CALL cvttsnd( time_ext, timsnd, tmstrln )
grdbasfn_ext = dir_extd(1:ldir)//extdname(1:lenrun) &
//'.'//fmtn//'grdbas'
lengbf_ext = ldir + lenrun + 10
datafn_ext = dir_extd(1:ldir)//extdname(1:lenrun) &
//'.'//fmtn//timsnd(1:tmstrln)
lendtf_ext = ldir + lenrun + 4 + tmstrln
WRITE(6,*) 'The external grid and base file, grdbasfn = ', &
grdbasfn_ext(1:lendtf_ext)
WRITE(6,*) 'The external time dependent file, datafn = ', &
datafn_ext(1:lengbf_ext)
!
!-----------------------------------------------------------------------
!
! Since the data reader will change certain parameters stored
! in common, they need to be saved and restored in common
! after reading is done.
!
!-----------------------------------------------------------------------
!
runname_org=runname
nocmnt_org=nocmnt
IF( nocmnt > 0 ) THEN
DO i=1,nocmnt
cmnt_org(i)=cmnt(i)
END DO
END IF
mapproj_org=mapproj
month_org=month
day_org=day
year_org=year
hour_org=hour
minute_org=minute
second_org=second
!
umove_org=umove
vmove_org=vmove
trulat1_org=trulat1
trulat2_org=trulat2
trulon_org=trulon
sclfct_org=sclfct
latitud_org=latitud
ctrlat_org=ctrlat
ctrlon_org=ctrlon
dx_org=dx
dy_org=dy
xgrdorg_org=xgrdorg
ygrdorg_org=ygrdorg
dz_org=dz
dzmin_org=dzmin
zrefsfc_org=zrefsfc
dlayer1_org=dlayer1
dlayer2_org=dlayer2
zflat_org=zflat
strhtune_org=strhtune
strhopt_org=strhopt
CALL xytoll(1,1,0.,0.,lat_org,lon_org)
!
!-----------------------------------------------------------------------
!
! Read ARPS data file
!
!-----------------------------------------------------------------------
!
! uatv_ext & vatu_ext used as temporary variables here
!
!
! We need to disable MPI here, as we DON'T want the data scattered to the
! individual processors! The current code calls for the entire external
! data to be passed to all processors. The assumption is that external
! data is much lower resolution, so this can be accomplished. Eventually,
! this will have to be changed, but not at this release.
!
mp_opt_save = mp_opt
mp_opt = 0
CALL dtaread(nx_ext,ny_ext,nz_ext,nzsoil_ext,nstyps, &
extdfmt, nchanl_ext, grdbasfn_ext,lengbf_ext, &
datafn_ext, lendtf_ext, time_ext, &
x_ext,y_ext,z_ext,zp_ext,zpsoil_ext, &
u_ext,v_ext,w_ext,t_ext,p_ext, &
qv_ext, qc_ext, qr_ext, &
qi_ext, qs_ext, qh_ext, vatu_ext,vatu_ext,vatu_ext, &
ubar_ext, vbar_ext, wbar_ext, &
ptbar_ext, pbar_ext, vatu_ext, qvbar_ext, &
soiltyp_ext,stypfrct_ext,vegtyp_ext, &
lai_ext,roufns_ext,veg_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext, &
tem1_ext(1,1,1),tem1_ext(1,1,2),tem2_ext, &
tem2_ext,tem1_ext(1,1,1),tem1_ext(1,1,2), &
tem2_ext,tem2_ext, &
tem1_ext(1,1,1),tem1_ext(1,1,2), &
tem1_ext(1,1,3),tem1_ext(1,1,4), &
ireturn,tem1_ext,tem2_ext,uatv_ext)
!
!-----------------------------------------------------------------------
!
! Set maprojection parameters
!
!-----------------------------------------------------------------------
!
iproj_ext=mapproj
scale_ext=sclfct
trlon_ext=trulon
latnot_ext(1)=trulat1
latnot_ext(2)=trulat2
CALL setmapr(iproj_ext,scale_ext,latnot_ext,trlon_ext)
CALL lltoxy(1,1,ctrlat,ctrlon,xctr,yctr)
dx_ext=x_ext(2)-x_ext(1)
x0_ext=xctr - 0.5*(nx_ext-3)*dx_ext
dy_ext=y_ext(2)-y_ext(1)
y0_ext=yctr - 0.5*(ny_ext-3)*dy_ext
CALL setorig(1,x0_ext,y0_ext)
!
!-----------------------------------------------------------------------
!
! Find lat,lon of scalar points
!
!-----------------------------------------------------------------------
!
DO i=1,nx_ext-1
xsc(i)=0.5*(x_ext(i)+x_ext(i+1))
END DO
xsc(nx_ext)=2.*xsc(nx_ext-1)-xsc(nx_ext-2)
DO j=1,ny_ext-1
ysc(j)=0.5*(y_ext(j)+y_ext(j+1))
END DO
ysc(ny_ext)=2.*ysc(ny_ext-1)-ysc(ny_ext-2)
CALL xytoll(nx_ext,ny_ext,xsc,ysc,lat_ext,lon_ext)
CALL xytoll(nx_ext,ny_ext,x_ext,ysc,latu_ext,lonu_ext)
CALL xytoll(nx_ext,ny_ext,xsc,y_ext,latv_ext,lonv_ext)
!
!-----------------------------------------------------------------------
!
! Move z field onto the scalar grid.
!
!-----------------------------------------------------------------------
!
DO k=1,nz_ext-1
DO j=1,ny_ext-1
DO i=1,nx_ext-1
hgt_ext(i,j,k)=0.5*(zp_ext(i,j,k)+zp_ext(i,j,k+1))
END DO
END DO
END DO
DO j=1,ny_ext-1
DO i=1,nx_ext-1
hgt_ext(i,j,nz_ext)=(2.*hgt_ext(i,j,nz_ext-1)) &
-hgt_ext(i,j,nz_ext-2)
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Combine wind perturbations and mean fields.
!
!-----------------------------------------------------------------------
!
u_ext = u_ext + ubar_ext
v_ext = v_ext + vbar_ext
w_ext = w_ext + wbar_ext
!
!-----------------------------------------------------------------------
!
! Orient u & v to true north.
!
!-----------------------------------------------------------------------
!
DO k=1,nz_ext
! get u at v grid point locations
DO j=2,ny_ext
DO i=1,nx_ext-1
uatv_ext(i,j,k) = 0.25*(u_ext(i,j-1,k)+u_ext(i+1,j-1,k) &
+u_ext(i,j,k)+u_ext(i+1,j,k))
END DO
END DO
DO i=1,nx_ext-1
uatv_ext(i,1,k) = 0.5*(u_ext(i,1,k)+u_ext(i+1,1,k))
END DO
DO j=2,ny_ext
uatv_ext(nx_ext,j,k) = 0.5*(u_ext(nx_ext,j-1,k)+u_ext(nx_ext,j,k))
END DO
uatv_ext(nx_ext,1,k) = u_ext(nx_ext,1,k)
! get v at u grid point locations
DO j=1,ny_ext-1
DO i=2,nx_ext
vatu_ext(i,j,k) = 0.25*(v_ext(i-1,j,k)+v_ext(i,j,k) &
+v_ext(i-1,j+1,k)+v_ext(i,j+1,k))
END DO
END DO
DO j=1,ny_ext-1
vatu_ext(1,j,k) = 0.5*(v_ext(1,j,k)+v_ext(1,j+1,k))
END DO
DO i=2,nx_ext
vatu_ext(i,ny_ext,k) = 0.5*(v_ext(i-1,ny_ext,k)+v_ext(i,ny_ext,k))
END DO
vatu_ext(1,ny_ext,k) = v_ext(1,ny_ext,k)
CALL uvmptoe(nx_ext,ny_ext,u_ext(1,1,k),vatu_ext(1,1,k),lonu_ext, &
tem1_ext(1,1,k),tem2_ext(1,1,k))
u_ext(1:nx_ext,1:ny_ext,k) = tem1_ext(1:nx_ext,1:ny_ext,k)
vatu_ext(1:nx_ext,1:ny_ext,k) = tem2_ext(1:nx_ext,1:ny_ext,k)
CALL uvmptoe(nx_ext,ny_ext,uatv_ext(1,1,k),v_ext(1,1,k),lonv_ext, &
tem1_ext(1,1,k),tem2_ext(1,1,k))
uatv_ext(1:nx_ext,1:ny_ext,k) = tem1_ext(1:nx_ext,1:ny_ext,k)
v_ext(1:nx_ext,1:ny_ext,k) = tem2_ext(1:nx_ext,1:ny_ext,k)
END DO
!
!-----------------------------------------------------------------------
!
! Combine perturbations and mean fields of scalars
! Convert potential temperature to potential temperature
!
!-----------------------------------------------------------------------
!
DO k=2,nz_ext-1
DO j=2,ny_ext-1
DO i=2,nx_ext-1
p_ext(i,j,k)=p_ext(i,j,k)+pbar_ext(i,j,k)
t_ext(i,j,k)=t_ext(i,j,k)+ptbar_ext(i,j,k)
t_ext(i,j,k)=t_ext(i,j,k)*((p_ext(i,j,k)/p0)**rddcp)
qv_ext(i,j,k)=qv_ext(i,j,k)+qvbar_ext(i,j,k)
END DO
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Supply data at the edge points (zero gradient, where missing)
!
!-----------------------------------------------------------------------
!
CALL edgfill(hgt_ext,1,nx_ext,2,nx_ext-1,1,ny_ext,2,ny_ext-1, &
1,nz_ext,1,nz_ext)
CALL edgfill(p_ext,1,nx_ext,2,nx_ext-1,1,ny_ext,2,ny_ext-1, &
1,nz_ext,1,nz_ext)
CALL edgfill(t_ext,1,nx_ext,2,nx_ext-1,1,ny_ext,2,ny_ext-1, &
1,nz_ext,1,nz_ext)
CALL edgfill(qv_ext,1,nx_ext,2,nx_ext-1,1,ny_ext,2,ny_ext-1, &
1,nz_ext,2,nz_ext-1)
! u & v now not on scalar points, so don't edgfill
! CALL edgfill(u_ext,1,nx_ext,2,nx_ext-1,1,ny_ext,2,ny_ext-1, &
! 1,nz_ext,2,nz_ext-1)
! CALL edgfill(v_ext,1,nx_ext,2,nx_ext-1,1,ny_ext,2,ny_ext-1, &
! 1,nz_ext,2,nz_ext-1)
!
!-----------------------------------------------------------------------
!
! Make top and bottom mass fields via hydrostatic extrapolation.
!
!-----------------------------------------------------------------------
!
govrd=g/rd
DO j=1,ny_ext-1
DO i=1,nx_ext-1
!
t_ext(i,j,1)=2.*t_ext(i,j,2)-t_ext(i,j,3)
tvbot=t_ext(i,j,1) * ( 1.0 + 0.608*qv_ext(i,j,1) )
tvtop=t_ext(i,j,2) * ( 1.0 + 0.608*qv_ext(i,j,2) )
tvbar=0.5*(tvtop+tvbot)
p_ext(i,j,1)=p_ext(i,j,2) &
*EXP(govrd*(hgt_ext(i,j,2)-hgt_ext(i,j,1))/tvbar)
!
t_ext(i,j,nz_ext)=2.*t_ext(i,j,nz_ext-1)-t_ext(i,j,nz_ext-2)
tvbot=t_ext(i,j,nz_ext-1)*(1.0 + 0.608*qv_ext(i,j,nz_ext-1))
tvtop=t_ext(i,j,nz_ext) *(1.0 + 0.608*qv_ext(i,j,nz_ext))
tvbar=0.5*(tvtop+tvbot)
p_ext(i,j,nz_ext)=p_ext(i,j,nz_ext-1) &
*EXP(govrd*(hgt_ext(i,j,nz_ext-1)- &
hgt_ext(i,j,nz_ext))/tvbar)
END DO
END DO
CALL edgfill(p_ext,1,nx_ext,1,nx_ext-1,1,ny_ext,1,ny_ext-1, &
1,nz_ext,1,nz_ext)
CALL edgfill(t_ext,1,nx_ext,1,nx_ext-1,1,ny_ext,1,ny_ext-1,1 &
,nz_ext,1,nz_ext)
!
!-----------------------------------------------------------------------
!
! Reset info in common to original values
!
!-----------------------------------------------------------------------
!
runname=runname_org
nocmnt=nocmnt_org
IF( nocmnt > 0 ) THEN
DO i=1,nocmnt
cmnt(i)=cmnt_org(i)
END DO
END IF
mapproj=mapproj_org
month=month_org
day=day_org
year=year_org
hour=hour_org
minute=minute_org
second=second_org
!
umove=umove_org
vmove=vmove_org
xgrdorg=xgrdorg_org
ygrdorg=ygrdorg_org
trulat1=trulat1_org
trulat2=trulat2_org
trulon=trulon_org
sclfct=sclfct_org
latitud=latitud_org
ctrlat=ctrlat_org
ctrlon=ctrlon_org
dx=dx_org
dy=dy_org
dz=dz_org
dzmin=dzmin_org
zrefsfc=zrefsfc_org
dlayer1=dlayer1_org
dlayer2=dlayer2_org
zflat=zflat_org
strhtune=strhtune_org
strhopt=strhopt_org
xgrdorg=xgrdorg_org
ygrdorg=ygrdorg_org
!
! Restore the correct "mp_opt" for processor 0.
!
mp_opt = mp_opt_save
END IF
!
!-----------------------------------------------------------------------
!
! Reset map projection to previous values
!
!-----------------------------------------------------------------------
!
CALL mpupdatei(mapproj,1)
CALL mpupdater(trulat1,1)
CALL mpupdater(trulat2,1)
CALL mpupdater(trulon, 1)
CALL mpupdater(sclfct,1)
CALL mpupdater(lat_org,1)
CALL mpupdater(lon_org,1)
latnot(1)=trulat1
latnot(2)=trulat2
CALL setmapr(mapproj,sclfct,latnot,trulon)
CALL setorig(2,lat_org,lon_org)
CALL xytoll(1,1,0.,0.,lat_org,lon_org)
CALL mpupdatei(iproj_ext,1)
CALL mpupdater(scale_ext,1)
CALL mpupdater(latnot_ext,2)
CALL mpupdater(trlon_ext,1)
CALL mpupdater(x0_ext,1)
CALL mpupdater(y0_ext,1)
CALL mpupdater(lat_ext,nx_ext*ny_ext)
CALL mpupdater(lon_ext,nx_ext*ny_ext)
CALL mpupdater(lat_ext,nx_ext*ny_ext)
CALL mpupdater(lon_ext,nx_ext*ny_ext)
CALL mpupdater(latu_ext,nx_ext*ny_ext)
CALL mpupdater(lonu_ext,nx_ext*ny_ext)
CALL mpupdater(latv_ext,nx_ext*ny_ext)
CALL mpupdater(lonv_ext,nx_ext*ny_ext)
CALL mpupdater(p_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(hgt_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(zp_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(zpsoil_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(t_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(qv_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(u_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(v_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(uatv_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(vatu_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(w_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(qc_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(qr_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(qi_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(qs_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(qh_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdatei(soiltyp_ext,nx_ext*ny_ext*nstyps)
CALL mpupdater(stypfrct_ext,nx_ext*ny_ext*nstyps)
CALL mpupdatei(vegtyp_ext,nx_ext*ny_ext)
CALL mpupdater(lai_ext,nx_ext*ny_ext)
CALL mpupdater(roufns_ext,nx_ext*ny_ext)
CALL mpupdater(veg_ext,nx_ext*ny_ext)
CALL mpupdater(tsoil_ext,nx_ext*ny_ext*nzsoil_ext*(nstyps+1))
CALL mpupdater(qsoil_ext,nx_ext*ny_ext*nzsoil_ext*(nstyps+1))
CALL mpupdater(wetcanp_ext,nx_ext*ny_ext*(nstyps+1))
CALL mpupdater(snowdpth_ext,nx_ext*ny_ext)
CALL mpupdater(tem1_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(tem2_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(x_ext,nx_ext)
CALL mpupdater(y_ext,ny_ext)
CALL mpupdater(z_ext,nz_ext)
CALL mpupdater(xsc,nx_ext)
CALL mpupdater(ysc,ny_ext)
CALL mpupdater(ubar_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(vbar_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(wbar_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(ptbar_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(pbar_ext,nx_ext*ny_ext*nz_ext)
CALL mpupdater(qvbar_ext,nx_ext*ny_ext*nz_ext)
istatus=1
RETURN
!
!-----------------------------------------------------------------------
!
! Error destination
!
!-----------------------------------------------------------------------
!
! 598 CONTINUE
! WRITE(6,'(a)') ' Error reading last field, returning'
! RETURN
END SUBROUTINE getarps
!
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETNMCRUC87 ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE getnmcruc87(nx_ext,ny_ext,nz_ext, & 1,12
dir_extd,extdname,extdopt,extdfmt, &
extdinit,extdfcst,julfname, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsfc_ext,tdeep_ext,wetsfc_ext,wetdp_ext,wetcanp_ext, &
trn_ext,psfc_ext, &
istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! ARPS version.
!
! Reads an ARPS file for processing by ext2arps, a program
! that converts external files to ARPS variables and format.
! This version is useful when you want to use an ARPS file
! with a different orientation or terrain than your final
! ARPS product so arpsr2h does not work.
!
!-----------------------------------------------------------------------
!
! AUTHOR: Yuhe Liu and Jinxing Zong
! 01/18/1996
!
! MODIFICATION HISTORY:
! 6/5/1997 Jinxing Zong and Yuhe Liu
! Virtualization of temperature is accounted for in variable
! conversion. Values of constants cp, rd/cp and g used in RUC are
! adopted in making the variable conversion. Subroutine TV2TQ and
! function ESW are added to facilitate the conversion.
!
! 01/26/1998 (Yuhe Liu)
! Removed function esw, instead, used unified function f_es in
! file thermolib3d.f
!
! 1999/11/30 (Gene Bassett)
! Changed deep soil temperature and moisture to be an average from
! 0-100cm.
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdopt Option of external data sources
! extdfmt Option of external data format
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format
! julfname File name in yyjjjhhmm format
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsfc_ext Surface temperature
! tdeep_ext Soil temperature
! wetsfc_ext Top layer soil moisture (fraction)
! wetdp_ext Deep soil moisture (fraction)
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! istatus status indicator
!
! WORK ARRAYS:
!
! var_grb3d Arrays to store the GRIB 3-D variables:
! var_grb3d(nxgrb,nygrb,nzgrb,1,1) - pressure (Pa)
! var_grb3d(nxgrb,nygrb,nzgrb,2,1) - Montgomery stream
! function (m**2/s**2)
! var_grb3d(nxgrb,nygrb,nzgrb,3,1) - Potential
! temperature (K)
! var_grb3d(nxgrb,nygrb,nzgrb,4,1) - Condensation pressure
! of lifted parcel (Pa)
! var_grb3d(nxgrb,nygrb,nzgrb,5,1) - u wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,6,1) - v wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,1,2) - soil temp. (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,2) - soil moist.
! (fraction)
!
! var_grb2d Arrays to store the GRIB 2-D variables:
! var_grb2d(nxgrb,nygrb,1) - Ground surface temperature (K)
! var_grb2d(nxgrb,nygrb,2) - Geometric height (m)
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INCLUDE 'gribcst.inc'
CHARACTER (LEN=*) :: dir_extd
CHARACTER (LEN=*) :: extdname
INTEGER :: extdopt
INTEGER :: extdfmt
CHARACTER (LEN=19) :: extdinit
CHARACTER (LEN=9) :: extdfcst
CHARACTER (LEN=9) :: julfname
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj_ext
REAL :: scale_ext,trlon_ext
REAL :: latnot_ext(2)
REAL :: x0_ext,y0_ext
REAL :: dx_ext,dy_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
INTEGER :: nx_ext, ny_ext, nz_ext
REAL :: lat_ext(nx_ext,ny_ext)
REAL :: lon_ext(nx_ext,ny_ext)
REAL :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL :: tsfc_ext (nx_ext,ny_ext) ! Temperature at surface (K)
REAL :: tdeep_ext (nx_ext,ny_ext) ! Deep soil temperature (K)
REAL :: wetsfc_ext (nx_ext,ny_ext) ! Surface soil moisture (fraction)
REAL :: wetdp_ext (nx_ext,ny_ext) ! Deep soil moisture (fraction)
REAL :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL :: trn_ext (nx_ext,ny_ext) ! Geometrical heights
REAL :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:,:) ! GRIB variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:,:) ! GRIB 3-D variables
INTEGER, ALLOCATABLE :: var_lev3d(:,:,:) ! Levels (hybrid) for
! each 3-D variable
REAL, ALLOCATABLE :: rcdata(:) ! temporary data array
!
!-----------------------------------------------------------------------
!
! Other external variable arrays
!
!-----------------------------------------------------------------------
!
REAL :: x_ext(nx_ext)
REAL :: y_ext(ny_ext)
INTEGER :: istatus
!
!-----------------------------------------------------------------------
!
! Original grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj
REAL :: scale,trlon,x0,y0
REAL :: latnot(2)
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=256) :: gribfile
CHARACTER (LEN=13) :: gribtime
INTEGER :: i,j,k
INTEGER :: iyr,imo,iday,myr, jldy
INTEGER :: ihr,imin,isec
INTEGER :: ifhr,ifmin,ifsec
INTEGER :: grbflen, len1, lenrun
INTEGER :: m,n,nz1,max_nr2d,max_nr3d
REAL :: pilev
REAL :: tv_ext, tvc_ext
REAL :: rovcp_p, cpd_p, g0_p, rd_p
INTEGER :: chklev, lvscan, kk, jj
REAL :: tema, temb
INTEGER :: iret ! Return flag
REAL, ALLOCATABLE :: utmp(:,:), vtmp(:,:)
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=42) :: gridesc ! Grid description
INTEGER :: iproj_grb ! Map projection indicator
INTEGER :: gthin ! Indicator of whether the grid is "thinned"
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
INTEGER :: np_grb ! Total number of horizontal grid points
INTEGER :: nk_grb ! Number of vertical parameters
REAL :: zk_grb(nz_ext) ! Vertical coordinate parameters
INTEGER :: npeq ! Number of lat circles from pole to equator
INTEGER :: nit(nz_ext) ! Number of x-points for thinned grid
REAL :: pi_grb ! x-coordinate of pole point
REAL :: pj_grb ! y-coordinate of pole point
INTEGER :: ipole ! Projection center flag
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
REAL :: latne ! Latitude of North East corner point
REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
REAL :: latrot ! Latitude of southern pole of rotation
REAL :: lonrot ! Longitude of southern pole of rotation
REAL :: angrot ! Angle of rotation
REAL :: latstr ! Latitude of the pole of stretching
REAL :: lonstr ! Longitude of the pole of stretching
REAL :: facstr ! Stretching factor
INTEGER :: scanmode ! Scanning indicator
INTEGER :: iscan ! x-direction scanning indicator
INTEGER :: jscan ! y-direction scanning indicator
INTEGER :: kscan ! FORTRAN index scanning indicator
INTEGER :: ires ! Resolution direction increments indicator
INTEGER :: iearth ! Earth shape indicator: spherical or oblate?
INTEGER :: icomp ! (u,v) components decomposition indicator
INTEGER :: jpenta ! J-Pentagonal resolution parameter
INTEGER :: kpenta ! K-Pentagonal resolution parameter
INTEGER :: mpenta ! M-Pentagonal resolution parameter
INTEGER :: ispect ! Spectral representation type
INTEGER :: icoeff ! Spectral coefficient storage mode
REAL :: xp_grb ! X coordinate of sub-satellite point
REAL :: yp_grb ! Y coordinate of sub-satellite point
REAL :: xo_grb ! X coordinate of image sector origin
REAL :: yo_grb ! Y coordinate of image sector origin
REAL :: zo_grb ! Camera altitude from center of Earth
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
ALLOCATE(var_grb2d(nx_ext,ny_ext,n2dvs,n2dlvt))
ALLOCATE(var_grb3d(nx_ext,ny_ext,nz_ext,n3dvs,n3dlvt))
ALLOCATE(rcdata(nx_ext*ny_ext))
ALLOCATE(var_lev3d(nz_ext,n3dvs,n3dlvt))
ALLOCATE(utmp(nx_ext,ny_ext))
ALLOCATE(vtmp(nx_ext,ny_ext))
IF ( extdfcst == ' ') extdfcst='000:00:00'
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
CALL julday(iyr,imo,iday,jldy)
myr=MOD(iyr,100)
ifhr=0
ifmin=0
ifsec=0
READ (extdfcst,'(i3)',ERR=4,END=4) ifhr
4 CONTINUE
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i2.2)') &
iyr,imo,iday,ihr,'f',ifhr
len1=LEN(dir_extd)
grbflen=len1
CALL strlnth( dir_extd, grbflen )
IF( grbflen == 0 .OR. dir_extd(1:grbflen) == ' ' ) THEN
dir_extd = '.'
grbflen=1
END IF
IF( dir_extd(grbflen:grbflen) /= '/'.AND.grbflen < len1 ) THEN
grbflen=grbflen+1
dir_extd(grbflen:grbflen)='/'
END IF
lenrun = LEN( extdname )
CALL strlnth( extdname, lenrun )
gribfile = dir_extd(1:grbflen)//extdname(1:lenrun) &
//'.'//gribtime(1:13)
grbflen = grbflen + lenrun + 14
!
!-----------------------------------------------------------------------
!
! RDNMCGRB reads NMC GRIB data
!
!-----------------------------------------------------------------------
!
gridtyp = ruc87grid
mproj_grb = ruc87proj
n2dvars = ruc87nvs2d
n2dlvtps = ruc87nlvt2d
DO m=1,n2dlvtps
DO n=1,n2dvars
var_id2d(n,m) = ruc87var_id2d(n,m)
END DO
levtyp2d(m) = ruc87levs2d(m)
END DO
n3dvars = ruc87nvs3d
n3dlvtps = ruc87nlvt3d
DO m=1,n3dlvtps
DO n=1,n3dvars
var_id3d(n,m) = ruc87var_id3d(n,m)
END DO
levtyp3d(m) = ruc87levs3d(m)
END DO
CALL rdnmcgrb(nx_ext,ny_ext,nz_ext,gribfile,grbflen, gribtime, &
gridesc, iproj_grb, gthin, &
ni_grb,nj_grb,np_grb, nk_grb,zk_grb, npeq,nit, &
pi_grb,pj_grb,ipole, di_grb,dj_grb, &
latsw,lonsw, latne,lonne, &
latrot,lonrot,angrot, &
latstr,lonstr,facstr, &
lattru1,lattru2,lontrue, &
scanmode, iscan,jscan,kscan, &
ires,iearth,icomp, &
jpenta,kpenta,mpenta,ispect,icoeff, &
xp_grb,yp_grb, xo_grb,yo_grb,zo_grb, &
rcdata,var_grb2d,var_grb3d,var_lev3d,lvldbg,iret)
IF (iret /= 0) THEN
ISTATUS = -888
GOTO 999
END IF
max_nr2d = 0
DO n=1,n2dvars
DO m=1,n2dlvtps
max_nr2d = MAX( max_nr2d, var_nr2d(n,m) )
END DO
END DO
max_nr3d = 0
DO n=1,n3dvars
max_nr3d = MAX( max_nr3d, var_nr3d(n,1) )
END DO
IF ( max_nr3d == 0 ) THEN
WRITE (6,'(a)') &
'No 3-D variables was found in the GRIB file', &
'Program stopped in GETNMCRUC.'
! STOP
ISTATUS = -888
GOTO 999
END IF
IF ( max_nr2d == 0 ) THEN
WRITE (6,'(a)') &
'No 2-D variables was found in the GRIB file'
END IF
! write (6,'(/a7,2x,6(i7))')
! : 'Lev\\VID',(var_id3d(n,1),n=1,n3dvars)
! DO 60 k=1,max_nr3d
! write (6,'(i5,4x,6(i7))')
! : k,(var_lev3d(k,n,1),n=1,n3dvars)
60 CONTINUE
DO k=1,max_nr3d
DO n=2,n3dvars
IF ( var_lev3d(k,1,1) /= var_lev3d(k,n,1) ) THEN
WRITE (6,'(a)') &
'Variables were not at the same level.', &
'Program stopped in GETNMCRUC.'
! STOP
ISTATUS = -888
GOTO 999
END IF
END DO
END DO
IF ( iproj_grb == 5 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 1
ELSE IF ( iproj_grb == 5 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -1
ELSE IF ( iproj_grb == 3 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 2
ELSE IF ( iproj_grb == 3 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -2
ELSE IF ( iproj_grb == 1 ) THEN
iproj_ext = 3
ELSE IF ( iproj_grb == 0 ) THEN
iproj_ext = 4
ELSE
WRITE (6,'(a)') &
'Unknown map projection. Set to non-projection.'
iproj_ext = 0
END IF
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
dx_ext = di_grb
dy_ext = dj_grb
CALL getmapr(iproj,scale,latnot,trlon,x0,y0)
CALL setmapr(iproj_ext,scale_ext,latnot_ext,trlon_ext)
CALL lltoxy(1,1,latsw,lonsw,x0_ext,y0_ext)
DO i=1,nx_ext
x_ext(i)=x0_ext+(i-1)*dx_ext
END DO
DO j=1,ny_ext
y_ext(j)=y0_ext+(j-1)*dy_ext
END DO
CALL xytoll(nx_ext,ny_ext,x_ext,y_ext,lat_ext,lon_ext)
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
DO j=1,ny_ext
DO i=1,nx_ext
IF ( var_nr2d(1,1) == 0 ) THEN
tsfc_ext (i,j) = -999.0
ELSE
tsfc_ext (i,j) = var_grb2d(i,j,1,1)
END IF
IF ( var_nr2d(2,1) == 0 ) THEN
trn_ext (i,j) = -999.0
ELSE
trn_ext (i,j) = var_grb2d(i,j,2,1)
END IF
IF ( var_nr3d(1,2) == 0 ) THEN
tsfc_ext (i,j) = var_grb3d(i,j,1,1,2)
! note that this is the 5cm value and not the surface value
tdeep_ext (i,j) = 0.1 * var_grb3d(i,j,1,1,2) & ! 5cm
+ 0.2 * var_grb3d(i,j,2,1,2) & ! 20cm
+ 0.4 * var_grb3d(i,j,3,1,2) & ! 40cm
+ 0.3 * var_grb3d(i,j,4,1,2) ! 160cm
wetsfc_ext (i,j) = var_grb3d(i,j,1,2,2)
! note that this is the 5cm value and not the surface value
wetdp_ext (i,j) = 0.1 * var_grb3d(i,j,1,2,2) & ! 5cm
+ 0.2 * var_grb3d(i,j,2,2,2) & ! 20cm
+ 0.4 * var_grb3d(i,j,3,2,2) & ! 40cm
+ 0.3 * var_grb3d(i,j,4,2,2) ! 160cm
wetcanp_ext(i,j) = var_grb2d(i,j,3,1)*1.e-3 ! in meters
ELSE
tsfc_ext (i,j) = -999.0
tdeep_ext (i,j) = -999.0
wetsfc_ext (i,j) = -999.0
wetdp_ext (i,j) = -999.0
wetcanp_ext(i,j) = -999.0
END IF
psfc_ext (i,j) = -999.0
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
cpd_p = 1004.686 ! cp in RUC
rovcp_p = 0.285714 ! rd/cp used in RUC
g0_p = 9.80665 ! gravity in RUC
nz1 = MIN(var_nr3d(1,1),nz_ext)
IF ( var_lev3d(1,1,1) < var_lev3d(nz1,1,1) ) THEN ! 1st level at sfc
chklev = 1
lvscan = 0
ELSE
chklev = -1
lvscan = nz1+1
END IF
DO k=1,nz1
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
p_ext(i,j,kk) = var_grb3d(i,j,k,1,1) ! Pressure (Pa)
pilev = (p_ext(i,j,kk)/100000.)**rovcp_p
tv_ext = var_grb3d(i,j,k,3,1)*pilev ! Virtual Temperature (K)
hgt_ext(i,j,kk) = (var_grb3d(i,j,k,2,1)-cpd_p*tv_ext)/g0_p
! Height (m) from Mongmery function with
! M = CpTv + gz
u_ext(i,j,kk) = var_grb3d(i,j,k,5,1) ! u wind (m/s)
v_ext(i,j,kk) = var_grb3d(i,j,k,6,1) ! v wind (m/s)
tvc_ext = var_grb3d(i,j,k,3,1) &
* (var_grb3d(i,j,k,4,1)/100000.)**rovcp_p
! Virtual Temperature (K) at LCL
CALL tv2tq( tvc_ext, var_grb3d(i,j,k,4,1), tema, temb )
t_ext(i,j,kk) = tema &
* (p_ext(i,j,kk)/var_grb3d(i,j,k,4,1))**rovcp_p ! Temperature (K)
qv_ext(i,j,kk) = temb ! Specific humidity
qc_ext(i,j,kk) = -999.
qr_ext(i,j,kk) = -999.
qi_ext(i,j,kk) = -999.
qs_ext(i,j,kk) = -999.
qh_ext(i,j,kk) = -999.
END DO
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Rotate winds to be relative to true north.
! The RUC data are sent as grid-relative.
!
!-----------------------------------------------------------------------
!
DO k=1,nz1
CALL uvmptoe(nx_ext,ny_ext,u_ext(1,1,k),v_ext(1,1,k), &
lon_ext,utmp,vtmp)
u_ext(:,:,k) = utmp(:,:)
v_ext(:,:,k) = vtmp(:,:)
END DO
istatus = 1
!
!-----------------------------------------------------------------------
!
! Reset map projection to previous values
!
!-----------------------------------------------------------------------
!
999 CONTINUE
CALL setmapr(iproj,scale,latnot,trlon)
CALL setorig(1,x0,y0)
DEALLOCATE(var_grb2d,var_grb3d,rcdata,var_lev3d)
DEALLOCATE(utmp)
DEALLOCATE(vtmp)
RETURN
END SUBROUTINE getnmcruc87
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETNMCRUC211 ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE getnmcruc211(nx_ext,ny_ext,nz_ext, & 1,12
dir_extd,extdname,extdopt,extdfmt, &
extdinit,extdfcst,julfname, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsfc_ext,tdeep_ext,wetsfc_ext,wetdp_ext,wetcanp_ext, &
trn_ext,psfc_ext, t_2m_ext, rh_2m_ext, u_10m_ext, &
v_10m_ext, istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! ARPS version.
!
! Reads an ARPS file for processing by ext2arps, a program
! that converts external files to ARPS variables and format.
! This version is useful when you want to use an ARPS file
! with a different orientation or terrain than your final
! ARPS product so arpsr2h does not work.
!
!-----------------------------------------------------------------------
!
! AUTHOR: Dennis Moon, SSESCO
! 06/19/1996
!
! MODIFICATION HISTORY:
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdopt Option of external data sources
! extdfmt Option of external data format
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format
! julfname File name in yyjjjhhmm format
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsfc_ext Surface temperature
! tdeep_ext Soil temperature
! wetsfc_ext Top layer soil moisture (fraction)
! wetdp_ext Deep soil moisture (fraction)
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! T_2m_ext Temperature at 2m AGL
! rh_2m_ext Specific Humidity at 2m AGL
! U_10m_ext U at 10m AGL
! V_10m_ext V at 10m AGL
!
! istatus status indicator
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INCLUDE 'gribcst.inc'
CHARACTER (LEN=*) :: dir_extd
CHARACTER (LEN=*) :: extdname
INTEGER :: extdopt
INTEGER :: extdfmt
CHARACTER (LEN=19) :: extdinit
CHARACTER (LEN=9) :: extdfcst
CHARACTER (LEN=9) :: julfname
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj_ext
REAL :: scale_ext,trlon_ext
REAL :: latnot_ext(2)
REAL :: x0_ext,y0_ext
REAL :: dx_ext,dy_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
INTEGER :: nx_ext,ny_ext,nz_ext
REAL :: lat_ext(nx_ext,ny_ext)
REAL :: lon_ext(nx_ext,ny_ext)
REAL :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL :: tsfc_ext (nx_ext,ny_ext) ! Temperature at surface (K)
REAL :: tdeep_ext (nx_ext,ny_ext) ! Deep soil temperature (K)
REAL :: wetsfc_ext (nx_ext,ny_ext) ! Surface soil moisture (fraction)
REAL :: wetdp_ext (nx_ext,ny_ext) ! Deep soil moisture (fraction)
REAL :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL :: trn_ext (nx_ext,ny_ext) ! Geometrical heights
REAL :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
REAL :: t_2m_ext (nx_ext,ny_ext)
REAL :: rh_2m_ext(nx_ext,ny_ext)
REAL :: u_10m_ext(nx_ext,ny_ext)
REAL :: v_10m_ext(nx_ext,ny_ext)
!
!----------------------------------------------------------------------
!
! Other external variable arrays
!
!----------------------------------------------------------------------
!
REAL :: x_ext(nx_ext)
REAL :: y_ext(ny_ext)
REAL :: z_ext(nz_ext)
INTEGER :: istatus
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:,:) ! GRIB variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:,:) ! GRIB 3-D variables
INTEGER, ALLOCATABLE :: var_lev3d(:,:,:) ! Levels (hybrid) for
! each 3-D variable
REAL, ALLOCATABLE :: rcdata(:) ! temporary data array
!
!-----------------------------------------------------------------------
!
! Original grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj
REAL :: scale,trlon,x0,y0
REAL :: latnot(2)
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=256) :: gribfile
CHARACTER (LEN=13 ) :: gribtime
CHARACTER (LEN=10 ) :: runstr
CHARACTER (LEN=3 ) :: fmtn
INTEGER :: ichr,bchar,echar
INTEGER :: i,j,k,ldir,ireturn
INTEGER :: iyr,imo,iday,myr, jldy
INTEGER :: ihr,imin,isec
INTEGER :: ifhr,ifmin,ifsec
INTEGER :: grbflen, len1, lenrun
INTEGER :: m,n,nz1,max_nr2d,max_nr3d
REAL :: qvsat, pilev, qvsatice
REAL :: tema, temb
INTEGER :: chklev, lvscan, kk, jj
INTEGER :: iret ! Return flag
REAL, ALLOCATABLE :: utmp(:,:), vtmp(:,:)
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=42) :: gridesc ! Grid description
INTEGER :: iproj_grb ! Map projection indicator
INTEGER :: gthin ! Indicator of whether the grid is "thinned"
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
INTEGER :: np_grb ! Total number of horizontal grid points
INTEGER :: nk_grb ! Number of vertical parameters
REAL :: zk_grb(nz_ext) ! Vertical coordinate parameters
INTEGER :: npeq ! Number of lat circles from pole to equator
INTEGER :: nit(nz_ext) ! Number of x-points for thinned grid
REAL :: pi_grb ! x-coordinate of pole point
REAL :: pj_grb ! y-coordinate of pole point
INTEGER :: ipole ! Projection center flag
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: lrb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
REAL :: latne ! Latitude of North East corner point
REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
REAL :: latrot ! Latitude of southern pole of rotation
REAL :: lonrot ! Longitude of southern pole of rotation
REAL :: angrot ! Angle of rotation
REAL :: latstr ! Latitude of the pole of stretching
REAL :: lonstr ! Longitude of the pole of stretching
REAL :: facstr ! Stretching factor
INTEGER :: scanmode ! Scanning indicator
INTEGER :: iscan ! x-direction scanning indicator
INTEGER :: jscan ! y-direction scanning indicator
INTEGER :: kscan ! FORTRAN index scanning indicator
INTEGER :: ires ! Resolution direction increments indicator
INTEGER :: iearth ! Earth shape indicator: spherical or oblate?
INTEGER :: icomp ! (u,v) components decomposition indicator
INTEGER :: jpenta ! J-Pentagonal resolution parameter
INTEGER :: kpenta ! K-Pentagonal resolution parameter
INTEGER :: mpenta ! M-Pentagonal resolution parameter
INTEGER :: ispect ! Spectral representation type
INTEGER :: icoeff ! Spectral coefficient storage mode
REAL :: xp_grb ! X coordinate of sub-satellite point
REAL :: yp_grb ! Y coordinate of sub-satellite point
REAL :: xo_grb ! X coordinate of image sector origin
REAL :: yo_grb ! Y coordinate of image sector origin
REAL :: zo_grb ! Camera altitude from center of Earth
!
!-----------------------------------------------------------------------
!
! Function f_qvsatl and inline directive for Cray PVP
!
!-----------------------------------------------------------------------
!
REAL :: f_qvsatl
!fpp$ expand (f_desdt)
!fpp$ expand (f_qvsatl)
!!dir$ inline always f_desdt, f_qvsatl
!*$* inline routine (f_desdt, f_qvsatl)
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
ALLOCATE(var_grb2d(nx_ext,ny_ext,n2dvs,n2dlvt))
ALLOCATE(var_grb3d(nx_ext,ny_ext,nz_ext,n3dvs,n3dlvt))
ALLOCATE(rcdata(nx_ext*ny_ext))
ALLOCATE(var_lev3d(nz_ext,n3dvs,n3dlvt))
ALLOCATE(utmp(nx_ext,ny_ext))
ALLOCATE(vtmp(nx_ext,ny_ext))
IF ( extdfcst == ' ') extdfcst='000:00:00'
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
CALL julday(iyr,imo,iday,jldy)
myr=MOD(iyr,100)
ifhr=0
ifmin=0
ifsec=0
READ (extdfcst,'(i3)',ERR=4,END=4) ifhr
4 CONTINUE
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i2.2)') &
iyr,imo,iday,ihr,'f',ifhr
len1=LEN(dir_extd)
grbflen=len1
CALL strlnth( dir_extd, grbflen )
IF( grbflen == 0 .OR. dir_extd(1:grbflen) == ' ' ) THEN
dir_extd = '.'
grbflen=1
END IF
IF( dir_extd(grbflen:grbflen) /= '/'.AND.grbflen < len1 ) THEN
grbflen=grbflen+1
dir_extd(grbflen:grbflen)='/'
END IF
lenrun = LEN( extdname )
CALL strlnth( extdname, lenrun )
gribfile = &
dir_extd(1:grbflen)//extdname(1:lenrun)//'.'//gribtime(1:13)
grbflen = grbflen + lenrun + 14
!
!-----------------------------------------------------------------------
!
! RDNMCGRB reads NMC GRIB data
!
!-----------------------------------------------------------------------
!
gridtyp = ruc211grid
mproj_grb = ruc211proj
n2dvars = ruc211nvs2d
n2dlvtps = ruc211nlvt2d
DO k=1,n2dlvtps
DO n=1,n2dvars
var_id2d(n,k) = ruc211var_id2d(n,k)
END DO
levtyp2d(k) = ruc211levs2d(k)
END DO
n3dvars = ruc211nvs3d
n3dlvtps = ruc211nlvt3d
DO m=1,n3dlvtps
DO n=1,n3dvars
var_id3d(n,m) = ruc211var_id3d(n,m)
END DO
levtyp3d(m) = ruc211levs3d(m)
END DO
CALL rdnmcgrb(nx_ext,ny_ext,nz_ext,gribfile,grbflen, gribtime, &
gridesc, iproj_grb, gthin, &
ni_grb,nj_grb,np_grb, nk_grb,zk_grb, npeq,nit, &
pi_grb,pj_grb,ipole, di_grb,dj_grb, &
latsw,lonsw, latne,lonne, &
latrot,lonrot,angrot, &
latstr,lonstr,facstr, &
lattru1,lattru2,lontrue, &
scanmode, iscan,jscan,kscan, &
ires,iearth,icomp, &
jpenta,kpenta,mpenta,ispect,icoeff, &
xp_grb,yp_grb, xo_grb,yo_grb,zo_grb, &
rcdata,var_grb2d,var_grb3d,var_lev3d,lvldbg,iret)
IF (iret /= 0) THEN
ISTATUS = -888
GOTO 999
END IF
max_nr2d = 0
DO n=1,n2dvars
DO m=1,n2dlvtps
max_nr2d = MAX( max_nr2d, var_nr2d(n,m) )
END DO
END DO
max_nr3d = 0
DO n=1,n3dvars
max_nr3d = MAX( max_nr3d, var_nr3d(n,1))
END DO
IF ( max_nr3d == 0 ) THEN
WRITE (6,'(a)') &
'No 3-D variables was found in the GRIB file', &
'Program stopped in GETNMCRUC211.'
! STOP
ISTATUS = -888
GOTO 999
END IF
IF ( max_nr2d == 0 ) THEN
WRITE (6,'(a)') &
'No 2-D variables was found in the GRIB file'
END IF
! write (6,'(/a7,2x,6(i7))')
! : 'Lev\\VID',(var_id3d(n,1),n=1,n3dvars)
! DO 60 k=1,max_nr3d
! write (6,'(i5,4x,6(i7))')
! : k,(var_lev3d(k,n,1),n=1,n3dvars)
60 CONTINUE
DO k=1,max_nr3d
DO n=2,n3dvars
IF ( var_lev3d(k,1,1) /= var_lev3d(k,n,1) ) THEN
WRITE (6,'(a)') &
'Variables were not at the same level.', &
'Program stopped in GETNMCRUC211.'
! STOP
ISTATUS = -888
GOTO 999
END IF
END DO
END DO
IF ( iproj_grb == 5 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 1
ELSE IF ( iproj_grb == 5 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -1
ELSE IF ( iproj_grb == 3 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 2
ELSE IF ( iproj_grb == 3 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -2
ELSE IF ( iproj_grb == 1 ) THEN
iproj_ext = 3
ELSE IF ( iproj_grb == 0 ) THEN
iproj_ext = 4
ELSE
WRITE (6,'(a)') &
'Unknown map projection. Set to non-projection.'
iproj_ext = 0
END IF
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
dx_ext = di_grb
dy_ext = dj_grb
CALL getmapr(iproj,scale,latnot,trlon,x0,y0)
CALL setmapr(iproj_ext,scale_ext,latnot_ext,trlon_ext)
CALL lltoxy(1,1,latsw,lonsw,x0_ext,y0_ext)
DO i=1,nx_ext
x_ext(i)=x0_ext+(i-1)*dx_ext
END DO
DO j=1,ny_ext
y_ext(j)=y0_ext+(j-1)*dy_ext
END DO
CALL xytoll(nx_ext,ny_ext,x_ext,y_ext,lat_ext,lon_ext)
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
DO j=1,ny_ext
DO i=1,nx_ext
IF ( var_nr2d(1,1) == 0 ) THEN
psfc_ext (i,j) = -999.0
ELSE
psfc_ext (i,j) = var_grb2d(i,j,1,1)
END IF
IF ( var_nr2d(2,1) == 0 ) THEN
trn_ext (i,j) = -999.0
ELSE
trn_ext (i,j) = var_grb2d(i,j,2,1)
END IF
IF( var_nr2d(1,2) == 0 ) THEN
t_2m_ext(i,j)= -999.0
ELSE
t_2m_ext(i,j)= var_grb2d(i,j,1,2)
END IF
! at this point we are reading in the relative humidity
! later we'll convert to specific humidity
IF( var_nr2d(2,2) == 0 ) THEN
rh_2m_ext(i,j)= -999.0
ELSE
rh_2m_ext(i,j)= var_grb2d(i,j,2,2)
END IF
IF( var_nr2d(3,2) == 0 ) THEN
u_10m_ext(i,j)= -999.0
ELSE
u_10m_ext(i,j)= var_grb2d(i,j,3,2)
END IF
IF( var_nr2d(4,2) == 0 ) THEN
v_10m_ext(i,j)= -999.0
ELSE
v_10m_ext(i,j)= var_grb2d(i,j,4,2)
END IF
tsfc_ext (i,j) = -999.0
tdeep_ext (i,j) = -999.0
wetsfc_ext (i,j) = -999.0
wetdp_ext (i,j) = -999.0
wetcanp_ext(i,j) = -999.0
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
nz1 = MIN(var_nr3d(1,1),nz_ext)
IF ( var_lev3d(1,1,1) > var_lev3d(nz1,1,1) ) THEN ! 1st level at sfc
chklev = 1
lvscan = 0
ELSE
chklev = -1
lvscan = nz1+1
END IF
DO k=1,nz1
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
p_ext(i,j,kk) = 100.0 * FLOAT(var_lev3d(k,1,1)) ! Pressure
t_ext(i,j,kk) = var_grb3d(i,j,k,2,1) ! Temperature (K)
u_ext(i,j,kk) = var_grb3d(i,j,k,4,1) ! u wind (m/s)
v_ext(i,j,kk) = var_grb3d(i,j,k,5,1) ! v wind (m/s)
hgt_ext(i,j,kk) = var_grb3d(i,j,k,1,1) ! height (m)
! check for portions of constant pressure grids that are below the surface
! IF(((kk == 1) .OR. (p_ext(i,j,kk) > psfc_ext(i,j))) .AND. &
! (psfc_ext(i,j) > 0.) ) THEN
! p_ext(i,j,kk)= psfc_ext(i,j) - 1. * (kk - 1)
! t_ext(i,j,kk)= t_2m_ext(i,j)
! u_ext(i,j,kk)= u_10m_ext(i,j)
! v_ext(i,j,kk)= v_10m_ext(i,j)
! hgt_ext(i,j,kk)= trn_ext(i,j) + 0.1 * (kk - 1)
! END IF
IF( (p_ext(i,j,kk) > 0.0) .AND. (t_ext(i,j,kk) > 0.0) ) THEN
qvsat = f_qvsatl( p_ext(i,j,kk), t_ext(i,j,kk) )
qv_ext(i,j,kk)= var_grb3d(i,j,k,3,1) * qvsat * 0.01
IF((kk == 1) .OR. (p_ext(i,j,kk) > psfc_ext(i,j)))THEN
qv_ext(i,j,kk)= rh_2m_ext(i,j) * qvsat * 0.01
END IF
qc_ext(i,j,kk)= 0.0
qi_ext(i,j,kk)= 0.0
ELSE
qv_ext(i,j,kk)= 0.0
qi_ext(i,j,kk)= 0.0
qc_ext(i,j,kk)= 0.0
END IF
qr_ext (i,j,kk) = -999.
qs_ext (i,j,kk) = -999.
qh_ext (i,j,kk) = -999.
END DO
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Rotate winds to be relative to true north.
! The RUCawips data are sent as grid-relative.
!
!-----------------------------------------------------------------------
!
DO k=1,nz1
CALL uvmptoe(nx_ext,ny_ext,u_ext(1,1,k),v_ext(1,1,k), &
lon_ext,utmp,vtmp)
u_ext(:,:,k) = utmp(:,:)
v_ext(:,:,k) = vtmp(:,:)
END DO
istatus = 1
!
!-----------------------------------------------------------------------
!
! Reset map projection to previous values
!
!-----------------------------------------------------------------------
!
999 CONTINUE
CALL setmapr(iproj,scale,latnot,trlon)
CALL setorig(1,x0,y0)
DEALLOCATE(var_grb2d,var_grb3d,rcdata,var_lev3d)
DEALLOCATE(utmp)
DEALLOCATE(vtmp)
RETURN
END SUBROUTINE getnmcruc211
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETREANALT62 ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE getreanalt62(nx_ext,ny_ext,nz_ext, & 1,4
dir_extd,extdname,extdopt,extdfmt, &
extdinit,extdfcst,julfname, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsfc_ext,tdeep_ext,wetsfc_ext,wetdp_ext,wetcanp_ext, &
trn_ext,psfc_ext, istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
!
! Reads a Global ReAnalaysis file for processing by ext2arps,
! a program that converts external files to ARPS variables and format.
! This version is useful when you want to use an ARPS file
! with a different orientation or terrain than your final
! ARPS product so arpsr2h does not work.
!
!-----------------------------------------------------------------------
!
! AUTHOR: Dennis Moon, SSESCO
! 06/19/1998
!
! MODIFICATION HISTORY:
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdopt Option of external data sources
! extdfmt Option of external data format
!
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format
! julfname File name in yyjjjhhmm format
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsfc_ext Surface temperature
! tdeep_ext Soil temperature
! wetsfc_ext Top layer soil moisture (fraction)
! wetdp_ext Deep soil moisture (fraction)
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! istatus status indicator
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INCLUDE 'gribcst.inc'
CHARACTER (LEN=*) :: dir_extd
CHARACTER (LEN=*) :: extdname
INTEGER :: extdopt
INTEGER :: extdfmt
CHARACTER (LEN=19) :: extdinit
CHARACTER (LEN=9) :: extdfcst
CHARACTER (LEN=9) :: julfname
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj_ext
REAL :: scale_ext,trlon_ext
REAL :: latnot_ext(2)
REAL :: x0_ext,y0_ext
REAL :: dx_ext,dy_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
INTEGER :: nx_ext,ny_ext,nz_ext
REAL :: lat_ext(nx_ext,ny_ext)
REAL :: lon_ext(nx_ext,ny_ext)
REAL :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL :: tsfc_ext (nx_ext,ny_ext) ! Temperature at surface (K)
REAL :: tdeep_ext (nx_ext,ny_ext) ! Deep soil temperature (K)
REAL :: wetsfc_ext (nx_ext,ny_ext) ! Surface soil moisture (fraction)
REAL :: wetdp_ext (nx_ext,ny_ext) ! Deep soil moisture (fraction)
REAL :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL :: trn_ext (nx_ext,ny_ext) ! Geometrical heights
REAL :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
!
!----------------------------------------------------------------------
!
! Other external variable arrays
!
!----------------------------------------------------------------------
!
REAL :: x_ext(nx_ext)
REAL :: y_ext(ny_ext)
REAL :: z_ext(nz_ext)
INTEGER :: istatus
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:,:) ! GRIB variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:,:) ! GRIB 3-D variables
INTEGER, ALLOCATABLE :: var_lev3d(:,:,:) ! Levels (hybrid) for
! each 3-D variable
REAL, ALLOCATABLE :: rcdata(:) ! temporary data array
!
!-----------------------------------------------------------------------
!
! Original grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj
REAL :: scale,trlon,x0,y0
REAL :: latnot(2)
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=256) :: gribfile
CHARACTER (LEN=13 ) :: gribtime
CHARACTER (LEN=10 ) :: runstr
CHARACTER (LEN=3 ) :: fmtn
INTEGER :: ichr,bchar,echar
INTEGER :: i,j,k,ldir,ireturn
INTEGER :: iyr,imo,iday,myr, jldy
INTEGER :: ihr,imin,isec
INTEGER :: ifhr,ifmin,ifsec
INTEGER :: grbflen, len1, lenrun
INTEGER :: m,n,nz1,max_nr2d,max_nr3d
REAL :: qvsat, pilev, qvsatice
REAL :: tema, temb, qvavg, mixrat, tvirtbar, tmpval
REAL :: gausslat(200)
INTEGER :: chklev, lvscan, kk, jj
INTEGER :: iret ! Return flag
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=42) :: gridesc ! Grid description
INTEGER :: iproj_grb ! Map projection indicator
INTEGER :: gthin ! Indicator of whether the grid is "thinned"
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
INTEGER :: np_grb ! Total number of horizontal grid points
INTEGER :: nk_grb ! Number of vertical parameters
REAL :: zk_grb(nz_ext) ! Vertical coordinate parameters
INTEGER :: npeq ! Number of lat circles from pole to equator
INTEGER :: nit(nz_ext) ! Number of x-points for thinned grid
REAL :: pi_grb ! x-coordinate of pole point
REAL :: pj_grb ! y-coordinate of pole point
INTEGER :: ipole ! Projection center flag
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: lrb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
REAL :: latne ! Latitude of North East corner point
REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
REAL :: latrot ! Latitude of southern pole of rotation
REAL :: lonrot ! Longitude of southern pole of rotation
REAL :: angrot ! Angle of rotation
REAL :: latstr ! Latitude of the pole of stretching
REAL :: lonstr ! Longitude of the pole of stretching
REAL :: facstr ! Stretching factor
INTEGER :: scanmode ! Scanning indicator
INTEGER :: iscan ! x-direction scanning indicator
INTEGER :: jscan ! y-direction scanning indicator
INTEGER :: kscan ! FORTRAN index scanning indicator
INTEGER :: ires ! Resolution direction increments indicator
INTEGER :: iearth ! Earth shape indicator: spherical or oblate?
INTEGER :: icomp ! (u,v) components decomposition indicator
INTEGER :: jpenta ! J-Pentagonal resolution parameter
INTEGER :: kpenta ! K-Pentagonal resolution parameter
INTEGER :: mpenta ! M-Pentagonal resolution parameter
INTEGER :: ispect ! Spectral representation type
INTEGER :: icoeff ! Spectral coefficient storage mode
REAL :: xp_grb ! X coordinate of sub-satellite point
REAL :: yp_grb ! Y coordinate of sub-satellite point
REAL :: xo_grb ! X coordinate of image sector origin
REAL :: yo_grb ! Y coordinate of image sector origin
REAL :: zo_grb ! Camera altitude from center of Earth
!
!-----------------------------------------------------------------------
!
! T62 Gaussian grid latitudes
!
!-----------------------------------------------------------------------
!
DATA gausslat / 88.5420, 86.6532, 84.7532, 82.8508, 80.9474, &
79.0435, 77.1393, 75.2351, 73.3307, 71.4262, &
69.5217, 67.6171, 65.7125, 63.8079, 61.9033, &
59.9986, 58.0940, 56.1893, 54.2846, 52.3799, &
50.4752, 48.5705, 46.6658, 44.7611, 42.8564, &
40.9517, 39.0470, 37.1422, 35.2375, 33.3328, &
31.4281, 29.5234, 27.6186, 25.7139, 23.8092, &
21.9044, 19.9997, 18.0950, 16.1902, 14.2855, &
12.3808, 10.4760, 8.5713, 6.6666, 4.7618, &
2.8571, 0.9524, -0.9524, -2.8571, -4.7618, &
-6.6666, -8.5713, -10.4760, -12.3808, -14.2855, &
-16.1902, -18.0950, -19.9997, -21.9044, -23.8092, &
-25.7139, -27.6186, -29.5234, -31.4281, -33.3328, &
-35.2375, -37.1422, -39.0470, -40.9517, -42.8564, &
-44.7611, -46.6658, -48.5705, -50.4752, -52.3799, &
-54.2846, -56.1893, -58.0940, -59.9986, -61.9033, &
-63.8079, -65.7125, -67.6171, -69.5217, -71.4262, &
-73.3307, -75.2351, -77.1393, -79.0435, -80.9474, &
-82.8508, -84.7532, -86.6532, -88.5420, 106*0.0/
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
ALLOCATE(var_grb2d(nx_ext,ny_ext,n2dvs,n2dlvt))
ALLOCATE(var_grb3d(nx_ext,ny_ext,nz_ext,n3dvs,n3dlvt))
ALLOCATE(rcdata(nx_ext*ny_ext))
ALLOCATE(var_lev3d(nz_ext,n3dvs,n3dlvt))
IF ( extdfcst == ' ') extdfcst='000:00:00'
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
CALL julday(iyr,imo,iday,jldy)
myr=MOD(iyr,100)
ifhr=0
ifmin=0
ifsec=0
READ (extdfcst,'(i3)',ERR=4,END=4) ifhr
4 CONTINUE
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i2.2)') &
iyr,imo,iday,ihr,'f',ifhr
len1=LEN(dir_extd)
grbflen=len1
CALL strlnth( dir_extd, grbflen )
IF( grbflen == 0 .OR. dir_extd(1:grbflen) == ' ' ) THEN
dir_extd = '.'
grbflen=1
END IF
IF( dir_extd(grbflen:grbflen) /= '/'.AND.grbflen < len1 ) THEN
grbflen=grbflen+1
dir_extd(grbflen:grbflen)='/'
END IF
lenrun = LEN( extdname )
CALL strlnth( extdname, lenrun )
gribfile = &
dir_extd(1:grbflen)//extdname(1:lenrun)//'.'//gribtime(1:13)
grbflen = grbflen + lenrun + 14
!
!-----------------------------------------------------------------------
!
! RDNMCGRB reads NMC GRIB data
!
!-----------------------------------------------------------------------
!
gridtyp = reanalt62grid
mproj_grb = reanalt62proj
n2dvars = reanalt62nvs2d
n2dlvtps = reanalt62nlvt2d
DO k=1,n2dlvtps
DO n=1,n2dvars
var_id2d(n,k) = reanalt62var_id2d(n,k)
END DO
levtyp2d(k) = reanalt62levs2d(k)
END DO
n3dvars = reanalt62nvs3d
n3dlvtps = reanalt62nlvt3d
DO m=1,n3dlvtps
DO n=1,n3dvars
var_id3d(n,m) = reanalt62var_id3d(n,m)
END DO
levtyp3d(m) = reanalt62levs3d(m)
END DO
CALL rdnmcgrb(nx_ext,ny_ext,nz_ext,gribfile,grbflen, gribtime, &
gridesc, iproj_grb, gthin, &
ni_grb,nj_grb,np_grb, nk_grb,zk_grb, npeq,nit, &
pi_grb,pj_grb,ipole, di_grb,dj_grb, &
latsw,lonsw, latne,lonne, &
latrot,lonrot,angrot, &
latstr,lonstr,facstr, &
lattru1,lattru2,lontrue, &
scanmode, iscan,jscan,kscan, &
ires,iearth,icomp, &
jpenta,kpenta,mpenta,ispect,icoeff, &
xp_grb,yp_grb, xo_grb,yo_grb,zo_grb, &
rcdata,var_grb2d,var_grb3d,var_lev3d,lvldbg,iret)
IF (iret /= 0) THEN
ISTATUS = -888
GOTO 999
END IF
max_nr2d = 0
DO n=1,n2dvars
DO m=1,n2dlvtps
max_nr2d = MAX( max_nr2d, var_nr2d(n,m) )
END DO
END DO
max_nr3d = 0
DO n=1,n3dvars
max_nr3d = MAX( max_nr3d, var_nr3d(n,1))
END DO
IF ( max_nr3d == 0 ) THEN
WRITE (6,'(a)') &
'No 3-D variables was found in the GRIB file', &
'Program stopped in GETREANALT62.'
! STOP
ISTATUS = -888
GOTO 999
END IF
IF ( max_nr2d == 0 ) THEN
WRITE (6,'(a)') &
'No 2-D variables was found in the GRIB file'
END IF
! write (6,'(/a7,2x,6(i7))')
! : 'Lev\\VID',(var_id3d(n,1),n=1,n3dvars)
! DO 60 k=1,max_nr3d
! write (6,'(i5,4x,6(i7))')
! : k,(var_lev3d(k,n,1),n=1,n3dvars)
60 CONTINUE
DO k=1,max_nr3d
DO n=2,n3dvars
IF ( var_lev3d(k,1,1) /= var_lev3d(k,n,1) ) THEN
WRITE (6,'(a)') &
'Variables were not at the same level.', &
'Program stopped in GETREANALT62.'
! STOP
ISTATUS = -888
GOTO 999
END IF
END DO
END DO
IF ( iproj_grb == 5 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 1
ELSE IF ( iproj_grb == 5 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -1
ELSE IF ( iproj_grb == 3 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 2
ELSE IF ( iproj_grb == 3 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -2
ELSE IF ( iproj_grb == 1 ) THEN
iproj_ext = 3
ELSE IF ( (iproj_grb == 0) .OR. (iproj_grb == 4) ) THEN
iproj_ext = 4
ELSE
WRITE (6,'(a)') &
'Unknown map projection. Set to non-projection.'
iproj_ext = 0
END IF
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
latnot_ext(1)= 0.
trlon_ext= 0.
dx_ext = di_grb
dy_ext = dj_grb
DO i=1, nx_ext
DO j=1, ny_ext
lat_ext(i,j)= gausslat(j)
lon_ext(i,j)= lonsw + (i-1) * dx_ext
END DO
END DO
! swap the latitude values so that +j moves to the north
DO i=1, nx_ext
DO j=1, ny_ext/2
tmpval= lat_ext(i,ny_ext-j+1)
lat_ext(i,ny_ext-j+1)= lat_ext(i,j)
lat_ext(i,j)= tmpval
END DO
END DO
! call getmapr(iproj,scale,latnot,trlon,x0,y0)
! call setmapr(iproj_ext,scale_ext,latnot_ext,trlon_ext)
! call lltoxy(1,1,LatSW,LonSW,x0_ext,y0_ext)
! DO 100 i=1,nx_ext
! x_ext(i)=x0_ext+(i-1)*dx_ext
!100 CONTINUE
! DO 110 j=1,ny_ext
! y_ext(j)=y0_ext+(j-1)*dy_ext
!110 CONTINUE
! CALL xytoll(nx_ext,ny_ext,x_ext,y_ext,lat_ext,lon_ext)
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
DO j=1,ny_ext
DO i=1,nx_ext
IF ( var_nr2d(1,1) == 0 ) THEN
psfc_ext (i,j) = -999.0
ELSE
psfc_ext (i,j) = var_grb2d(i,j,1,1)
END IF
IF ( var_nr2d(2,1) == 0 ) THEN
trn_ext (i,j) = -999.0
ELSE
trn_ext (i,j) = var_grb2d(i,j,2,1)
END IF
tsfc_ext (i,j) = -999.0
tdeep_ext (i,j) = -999.0
wetsfc_ext (i,j) = -999.0
wetdp_ext (i,j) = -999.0
wetcanp_ext(i,j) = -999.0
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
nz1 = MIN(var_nr3d(1,1),nz_ext)
IF ( var_lev3d(1,1,1) > var_lev3d(nz1,1,1) ) THEN ! 1st level at sfc
chklev = 1
lvscan = 0
ELSE
chklev = -1
lvscan = nz1+1
END IF
DO k=1,nz1
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
p_ext(i,j,kk) = 1.e-4 * FLOAT(var_lev3d(k,1,1)) &
* psfc_ext(i,j) ! Pressure
t_ext(i,j,kk) = var_grb3d(i,j,k,1,1) ! Temperature (K)
qv_ext(i,j,kk)= var_grb3d(i,j,k,2,1) ! Specific Humidity
u_ext(i,j,kk) = var_grb3d(i,j,k,3,1) ! u wind (m/s)
v_ext(i,j,kk) = var_grb3d(i,j,k,4,1) ! v wind (m/s)
! calculate height from sigma-P values
IF( k == 1) THEN
! mixrat= 1.0 / ( 1./qv_ext(i,j,kk) - 1.)
mixrat= qv_ext(i,j,kk) / ( 1. - qv_ext(i,j,kk) )
tvirtbar= t_ext(i,j,kk) * ( 1.0 + .61* mixrat)
hgt_ext(i,j,kk)= trn_ext(i,j) + 29.3 * tvirtbar * &
LOG(psfc_ext(i,j)/p_ext(i,j,kk))
ELSE
qvavg= 0.5 * (qv_ext(i,j,kk) + qv_ext(i,j,kk-1))
! mixrat= 1.0 / (1./qvavg - .1)
mixrat= qvavg / (1. - qvavg)
tvirtbar= 0.5 * (t_ext(i,j,kk) + t_ext(i,j,kk-1)) * &
( 1.0 + .61 * mixrat)
hgt_ext(i,j,kk)= hgt_ext(i,j,kk-1) + 29.3 * tvirtbar * &
LOG(p_ext(i,j,kk-1)/p_ext(i,j,kk))
END IF
qc_ext(i,j,kk)= 0.0
qi_ext(i,j,kk)= 0.0
qr_ext (i,j,kk) = -999.
qs_ext (i,j,kk) = -999.
qh_ext (i,j,kk) = -999.
END DO
END DO
END DO
!
!-----------------------------------------------------------------------
!
! No need to rotate winds to be relative to true north.
! The Re-analysis grid winds are true N-S, E-W
!
!-----------------------------------------------------------------------
!
! DO 300 k=1,nz1
! CALL uvmptoe(nx_ext,ny_ext,u_ext(1,1,k),v_ext(1,1,k),
! : lon_ext,u_ext(1,1,k),v_ext(1,1,k))
!300 CONTINUE
istatus = 1
!
!-----------------------------------------------------------------------
!
! Reset map projection to previous values
!
!-----------------------------------------------------------------------
!
999 CONTINUE
! call setmapr(iproj,scale,latnot,trlon)
! call setorig(1,x0,y0)
DEALLOCATE(var_grb2d,var_grb3d,rcdata,var_lev3d)
RETURN
END SUBROUTINE getreanalt62
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE TV2TQ ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE tv2tq(tv,p,t,q) 2,4
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
REAL :: tv ! virtual temperature (K)
REAL :: p ! pressure (pa)
REAL :: t ! temperature (K)
REAL :: q ! specific humidity (kg/kg)
REAL :: tg,qg,fac,tvg,dtvdt,tgnew
REAL :: es, es1
INTEGER :: it
!
!-----------------------------------------------------------------------
!
! Function and inline directive for Cray PVP
!
!-----------------------------------------------------------------------
!
REAL :: f_es
!fpp$ expand (f_es)
!!dir$ inline always f_es
!*$* inline routine (f_es)
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
it = 0
!
! -- TG - guess at non-virtual temperature
!
es = f_es(p,tv)
tg = tv/( 1.0 + 0.6078 * 0.62197*es &
/ ( p - es ) )
10 CONTINUE
it = it + 1
!
! -- QG - guess at specific humidity
!
es = f_es(p,tg)
qg = 0.62197*es/( p - es )
fac = 1.+0.6078*qg
!
! -- TVG - guess at virtual temperature
!
tvg = tg*fac
!
! -- DTVDT - d(Tv)/dT estimated over 0.1 K interval
! from 1st term Taylor series expansion
!
es1 = f_es(p,tg+0.1)
dtvdt = fac + tg * 0.6078 * 0.62197*p/(p-es)**2 &
* ( es1 - es ) / 0.1
tgnew = tg + (tv-tvg)/dtvdt
!
! write(12,*) ' '
! write(12,*) 'IT=',IT,' TV=',TV,' TVG=',TVG,
! : ' TV-TVG=',TV-TVG,' DTVDT=',DTVDT
!
IF (ABS(tv-tvg) < 1.0E-4) GO TO 20
tg = tgnew
GO TO 10
20 CONTINUE
t = tgnew
es = f_es(p,t)
q = 0.62197*es / ( p - es )
RETURN
END SUBROUTINE tv2tq
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETNMCETA212 ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE getnmceta212(nx_ext,ny_ext,nz_ext,nzsoil_ext, & 1,16
nstyps_ext,dir_extd,extdname,extdopt,extdfmt, &
extdinit,extdfcst,julfname, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext,zpsoil_ext, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext,soiltyp_ext, &
t_2m_ext, qv_2m_ext, u_10m_ext, v_10m_ext, rain_ext, &
istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Reads a NMC GRIB (Grid #212, 40km) ETA file for processing by
! ext2arps, a program that converts external files to ARPS variables
! and format.
!
!-----------------------------------------------------------------------
!
! AUTHOR: Yuhe Liu
! 02/22/1996
!
! MODIFICATION HISTORY:
!
! 1999/08/03 (Gene Bassett)
! Modified the deep soil moisture and temperature to be an average of
! the three soil layers covering 0 to 100 cm in depth.
!
! 2003/10/23 (F. KONG)
! Modified to read in from grid 212 four more near surface variables:
! 2-m temperature and humidity, and 10-m wind (u, v)
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdopt Option of external data sources
! extdfmt Option of external data format
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format
! julfname File name in yyjjjhhmm format
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsoil_ext Soil temperature (K)
! qsoil_ext Soil moisture (m**3/m**3)
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! F.KONG add four near surface variables
! T_2m_ext Temperature at 2m AGL
! qv_2m_ext Specific Humidity at 2m AGL
! U_10m_ext U at 10m AGL
! V_10m_ext V at 10m AGL
! rain_ext
! end F.KONG mod
!
! istatus status indicator
!
! WORK ARRAYS:
!
! var_grb3d Arrays to store the GRIB 3-D variables:
! var_grb3d(nxgrb,nygrb,nzgrb,1,1) - Temperature (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,1) - Specific humidity
! (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,3,1) - u wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,4,1) - v wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,5,1) - Geopotential
! height (gpm)
! var_grb3d(nxgrb,nygrb,nzgrb,6,1) - Pressure vertical
! velocity (Pa/s)
! (if applied)
! var_grb3d(nxgrb,nygrb,nzgrb,1,2) - soil temp. (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,2) - vol. soil moist.
! (m**3/m**3)
!
! var_grb2d Arrays to store the GRIB 2-D variables:
! var_grb2d(nxgrb,nygrb,1) - Surface pressure (Pa)
! var_grb2d(nxgrb,nygrb,2) - Geopotential height (gpm)
! var_grb2d(nxgrb,nygrb,3) - Surface temperature (K)
! var_grb2d(nxgrb,nygrb,4) - Plant canopy surface
! water (kg/m**2)
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INCLUDE 'gribcst.inc'
CHARACTER (LEN=*) :: dir_extd
CHARACTER (LEN=*) :: extdname
INTEGER :: extdopt
INTEGER :: extdfmt
CHARACTER (LEN=19) :: extdinit
CHARACTER (LEN=9) :: extdfcst
CHARACTER (LEN=9) :: julfname
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj_ext
REAL :: scale_ext,trlon_ext
REAL :: latnot_ext(2)
REAL :: x0_ext,y0_ext
REAL :: dx_ext,dy_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
INTEGER :: nx_ext,ny_ext,nz_ext
INTEGER :: nzsoil_ext, nstyps_ext
REAL :: lat_ext(nx_ext,ny_ext)
REAL :: lon_ext(nx_ext,ny_ext)
REAL :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL :: zpsoil_ext(nx_ext,ny_ext,nzsoil_ext) !Soil depths (m)
REAL :: tsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Soil temperature (K)
REAL :: qsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Soil moisture (m**3/m**3)
REAL :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL :: snowdpth_ext(nx_ext,ny_ext) ! Snow depth (m)
REAL :: trn_ext (nx_ext,ny_ext) ! External terrain (m)
REAL :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
INTEGER soiltyp_ext (nx_ext,ny_ext) ! Soil type
REAL :: t_2m_ext (nx_ext,ny_ext)
REAL :: qv_2m_ext(nx_ext,ny_ext)
REAL :: u_10m_ext(nx_ext,ny_ext)
REAL :: v_10m_ext(nx_ext,ny_ext)
REAL :: rain_ext (nx_ext,ny_ext)
!
!-----------------------------------------------------------------------
!
! Other external variable arrays
!
!-----------------------------------------------------------------------
!
REAL :: x_ext(nx_ext)
REAL :: y_ext(ny_ext)
INTEGER :: istatus
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:,:) ! GRIB variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:,:) ! GRIB 3-D variables
INTEGER, ALLOCATABLE :: var_lev3d(:,:,:) ! Levels (hybrid) for
! each 3-D variable
REAL, ALLOCATABLE :: rcdata(:) ! temporary data array
REAL, ALLOCATABLE :: qvs_ext(:,:,:)
!
!-----------------------------------------------------------------------
!
! Original grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj
REAL :: scale,trlon,x0,y0
REAL :: latnot(2)
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=256) :: gribfile
CHARACTER (LEN=13) :: gribtime
INTEGER :: i,j,k,kk
INTEGER :: iyr,imo,iday,myr, jldy
INTEGER :: ihr,imin,isec
INTEGER :: ifhr,ifmin,ifsec
INTEGER :: grbflen, len1, lenrun
INTEGER :: m,n,nz1,max_nr2d,max_nr3d
REAL :: govrd
INTEGER, PARAMETER :: nzsoilin_ext = 4
REAL, PARAMETER :: soildepth_ext(nzsoilin_ext+1) = (/0.0, 0.1, 0.4, 1.0, 2.0/)
! grid #212 contains 4 soil layers 0-1cm, 1-4cm, 4-100cm, 100-200cm.
INTEGER :: chklev, lvscan
LOGICAL :: grb2fmt
INTEGER :: extffmt
INTEGER :: iret ! Return flag
REAL, ALLOCATABLE :: utmp(:,:), vtmp(:,:)
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
INCLUDE 'grid.inc'
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=42) :: gridesc ! Grid description
INTEGER :: iproj_grb ! Map projection indicator
INTEGER :: gthin ! Indicator of whether the grid is "thinned"
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
INTEGER :: np_grb ! Total number of horizontal grid points
INTEGER :: nk_grb ! Number of vertical parameters
REAL :: zk_grb(nz_ext) ! Vertical coordinate parameters
INTEGER :: npeq ! Number of lat circles from pole to equator
INTEGER :: nit(nz_ext) ! Number of x-points for thinned grid
REAL :: pi_grb ! x-coordinate of pole point
REAL :: pj_grb ! y-coordinate of pole point
INTEGER :: ipole ! Projection center flag
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
REAL :: latne ! Latitude of North East corner point
REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
REAL :: latrot ! Latitude of southern pole of rotation
REAL :: lonrot ! Longitude of southern pole of rotation
REAL :: angrot ! Angle of rotation
REAL :: latstr ! Latitude of the pole of stretching
REAL :: lonstr ! Longitude of the pole of stretching
REAL :: facstr ! Stretching factor
INTEGER :: scanmode ! Scanning indicator
INTEGER :: iscan ! x-direction scanning indicator
INTEGER :: jscan ! y-direction scanning indicator
INTEGER :: kscan ! FORTRAN index scanning indicator
INTEGER :: ires ! Resolution direction increments indicator
INTEGER :: iearth ! Earth shape indicator: spherical or oblate?
INTEGER :: icomp ! (u,v) components decomposition indicator
INTEGER :: jpenta ! J-Pentagonal resolution parameter
INTEGER :: kpenta ! K-Pentagonal resolution parameter
INTEGER :: mpenta ! M-Pentagonal resolution parameter
INTEGER :: ispect ! Spectral representation type
INTEGER :: icoeff ! Spectral coefficient storage mode
REAL :: xp_grb ! X coordinate of sub-satellite point
REAL :: yp_grb ! Y coordinate of sub-satellite point
REAL :: xo_grb ! X coordinate of image sector origin
REAL :: yo_grb ! Y coordinate of image sector origin
REAL :: zo_grb ! Camera altitude from center of Earth
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
CALL getmapr(iproj,scale,latnot,trlon,x0,y0)
ALLOCATE(utmp(nx_ext,ny_ext))
ALLOCATE(vtmp(nx_ext,ny_ext))
IF(extdfcst == ' ') extdfcst='000:00:00'
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
CALL julday(iyr,imo,iday,jldy)
myr=MOD(iyr,100)
ifhr=0
ifmin=0
ifsec=0
READ(extdfcst,'(i3)',ERR=4,END=4) ifhr
4 CONTINUE
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i2.2)') &
iyr,imo,iday,ihr,'f',ifhr
len1=LEN(dir_extd)
grbflen=len1
CALL strlnth( dir_extd, grbflen )
IF( grbflen == 0 .OR. dir_extd(1:grbflen) == ' ' ) THEN
dir_extd = '.'
grbflen=1
END IF
IF( dir_extd(grbflen:grbflen) /= '/'.AND.grbflen < len1 ) THEN
grbflen=grbflen+1
dir_extd(grbflen:grbflen)='/'
END IF
lenrun = LEN( extdname )
CALL strlnth( extdname, lenrun )
gribfile = dir_extd(1:grbflen)//extdname(1:lenrun) &
//'.'//gribtime(1:13)
grbflen = grbflen + lenrun + 14
!-----------------------------------------------------------------------
!
! Processing extdfmt
!
!-----------------------------------------------------------------------
grb2fmt = extdfmt >= 2000
extffmt = MOD(extdfmt,1000)
IF (extffmt == 0) THEN
WRITE(gribfile,'(a,2(a,I2.2),a)') &
TRIM(dir_extd)//TRIM(extdname),'.t',ihr,'z.awip3d',ifhr,'.tm00'
grbflen = LEN_TRIM(gribfile)
IF (grb2fmt) THEN
gribfile = TRIM(gribfile)//'.grib2'
grbflen = grbflen + 6
END IF
END IF
IF (grb2fmt) THEN
WRITE(6,'(1x,2a,I4)') 'GRIB file to be read is ',gribfile(1:grbflen),grbflen
CALL getnam212_grb2(nx_ext,ny_ext,nz_ext,nzsoil_ext,nzsoilin_ext, &
gribfile,gribtime,grbflen,soildepth_ext, &
dx_ext,dy_ext, &
iproj_ext,scale_ext,trlon_ext,latnot_ext,latsw,lonsw, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext,soiltyp_ext, &
t_2m_ext, qv_2m_ext, u_10m_ext, v_10m_ext, rain_ext, &
istatus)
ELSE
ALLOCATE(var_grb2d(nx_ext,ny_ext,n2dvs,n2dlvt))
ALLOCATE(var_grb3d(nx_ext,ny_ext,nz_ext,n3dvs,n3dlvt))
ALLOCATE(rcdata(nx_ext*ny_ext))
ALLOCATE(var_lev3d(nz_ext,n3dvs,n3dlvt))
!
!-----------------------------------------------------------------------
!
! RDNMCGRB reads NMC GRIB data
!
!-----------------------------------------------------------------------
!
govrd = g/rd
gridtyp = eta212grid
mproj_grb = eta212proj
n2dvars = eta212nvs2d
n2dlvtps = eta212nlvt2d
DO k=1,n2dlvtps
DO n=1,n2dvars
var_id2d(n,k) = eta212var_id2d(n,k)
END DO
levtyp2d(k) = eta212levs2d(k)
END DO
n3dvars = eta212nvs3d
n3dlvtps = eta212nlvt3d
DO m=1,n3dlvtps
DO n=1,n3dvars
IF (extdfmt == 101) THEN
var_id3d(n,m) = eta212var_id3d_sref(n,m)
ELSE
var_id3d(n,m) = eta212var_id3d(n,m)
END IF
END DO
levtyp3d(m) = eta212levs3d(m)
END DO
CALL rdnmcgrb(nx_ext,ny_ext,nz_ext,gribfile,grbflen, gribtime, &
gridesc, iproj_grb, gthin, &
ni_grb,nj_grb,np_grb, nk_grb,zk_grb, npeq,nit, &
pi_grb,pj_grb,ipole, di_grb,dj_grb, &
latsw,lonsw, latne,lonne, &
latrot,lonrot,angrot, &
latstr,lonstr,facstr, &
lattru1,lattru2,lontrue, &
scanmode, iscan,jscan,kscan, &
ires,iearth,icomp, &
jpenta,kpenta,mpenta,ispect,icoeff, &
xp_grb,yp_grb, xo_grb,yo_grb,zo_grb, &
rcdata,var_grb2d,var_grb3d,var_lev3d,lvldbg,iret)
IF (iret /= 0) THEN
ISTATUS = -888
GOTO 999
END IF
max_nr2d = 0
DO n=1,n2dvars
DO m=1,n2dlvtps
max_nr2d = MAX( max_nr2d, var_nr2d(n,m) )
END DO
END DO
max_nr3d = 0
DO n=1,n3dvars
max_nr3d = MAX( max_nr3d, var_nr3d(n,1) )
END DO
IF ( max_nr3d == 0 ) THEN
WRITE (6,'(a)') &
'No 3-D variable was found in the GRIB file', &
'Dataset problem in GETNMCETA212.', &
' '
!STOP
ISTATUS = -888
GOTO 999
END IF
IF ( max_nr2d == 0 ) THEN
WRITE (6,'(a)') &
'No 2-D variables was found in the GRIB file'
END IF
! WRITE (6,'(/a7,2x,6(i7))') 'Lev\VID',(var_id3d(n,1),n=1,n3dvars)
! DO k=1,max_nr3d
! write (6,'(/i5,4x,6(i7))') k,(var_lev3d(k,n,1),n=1,n3dvars)
! END DO
DO k=1,max_nr3d
DO n=2,n3dvars
IF ( var_lev3d(k,1,1) /= var_lev3d(k,n,1) ) THEN
WRITE (6,'(a,/,a,I3,a,I7,/,a,I7,a,I3,/,a,/)') &
'Variables were not at the same level.', &
'The K (k= ',k,')th level for variable 1 is ',var_lev3d(k,1,1), &
'but it is ',var_lev3d(k,n,1),' for variable n = ',n, &
'Dataset problem in GETNMCETA212.'
!STOP
ISTATUS = -888
GOTO 999
END IF
END DO
END DO
IF ( iproj_grb == 5 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 1
ELSE IF ( iproj_grb == 5 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -1
ELSE IF ( iproj_grb == 3 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 2
ELSE IF ( iproj_grb == 3 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -2
ELSE IF ( iproj_grb == 1 ) THEN
iproj_ext = 3
ELSE IF ( iproj_grb == 0 ) THEN
iproj_ext = 4
ELSE
WRITE (6,'(a)') &
'Unknown map projection. Set to non-projection.'
iproj_ext = 0
END IF
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
dx_ext = di_grb
dy_ext = dj_grb
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
DO j=1,ny_ext
DO i=1,nx_ext
IF ( var_nr2d(1,1) == 0 ) THEN
psfc_ext (i,j) = -999.0
ELSE
! psfc_ext (i,j) = var_grb2d(i,j,1,1) * 100.0
psfc_ext (i,j) = var_grb2d(i,j,1,1) ! already with Pa unit (F.KONG)
END IF
IF ( var_nr2d(2,1) == 0 ) THEN
trn_ext (i,j) = -999.0
ELSE
trn_ext (i,j) = var_grb2d(i,j,2,1)
END IF
IF ( var_nr3d(1,2) == 0 ) THEN
DO k=1,nzsoil_ext
tsoil_ext (i,j,k) = -999.0
qsoil_ext (i,j,k) = -999.0
END DO
ELSE
IF (soilmodel_option == 1) THEN ! Old ARPS Force-Restore Soil Model
tsoil_ext(i,j,1) = var_grb2d(i,j,3,1)
IF ( nint(var_grb2d(i,j,5,1)) == 1 ) THEN ! soil temp over land
tsoil_ext(i,j,2) = 0.1 * var_grb3d(i,j,1,1,2) & ! 0-10cm
+ 0.3 * var_grb3d(i,j,2,1,2) & ! 10-40cm
+ 0.6 * var_grb3d(i,j,3,1,2) ! 40-100cm
soiltyp_ext(i,j) = 0
ELSE ! sfc temp over sea
tsoil_ext(i,j,2) = var_grb2d(i,j,3,1)
soiltyp_ext(i,j) = 13 ! Set soil type to water
END IF
qsoil_ext(i,j,1) = var_grb3d(i,j,1,2,2)
qsoil_ext(i,j,2) = 0.1 * var_grb3d(i,j,1,2,2) & ! 0-10cm
+ 0.3 * var_grb3d(i,j,2,2,2) & ! 10-40cm
+ 0.6 * var_grb3d(i,j,3,2,2) ! 40-100cm
ELSE ! OU Soil model
!EMK 15 June 2002...Reorganized, added another soil level, and added
!water temperature.
IF ( nint(var_grb2d(i,j,5,1)) == 1 ) THEN ! Land
tsoil_ext (i,j,1) = var_grb2d(i,j,3,1) ! Ground temperature
qsoil_ext (i,j,1) = var_grb3d(i,j,1,2,2) ! Assumed to be same
! as first below ground
! level.
DO k=2,nzsoil_ext
! "TSOIL" in GRIB is below ground, treated as separate
! variable from ground temperature.
tsoil_ext (i,j,k) = var_grb3d(i,j,k-1,1,2) ! Not a bug;
qsoil_ext (i,j,k) = var_grb3d(i,j,k-1,2,2)
END DO
ELSE ! Water
DO k=1,nzsoil_ext
tsoil_ext (i,j,k) = var_grb2d(i,j,7,1) ! Water temperature
qsoil_ext (i,j,k) = 1. ! 100% water
END DO
END IF ! Land or water?
! qsoil_ext (i,j,1) = var_grb3d(i,j,1,2,2) ! 0 cm
! DO k=2,nzsoil_ext
! qsoil_ext (i,j,k) = var_grb3d(i,j,k-1,2,2)
! END DO
!EMK END 15 June 2002
END IF ! soilmodel_option
END IF
IF ( var_nr2d(4,1) == 0 ) THEN
wetcanp_ext(i,j) = -999.0
ELSE
wetcanp_ext(i,j) = var_grb2d(i,j,4,1)*1.e-3 ! in meter
END IF
IF ( var_nr2d(6,1) == 0 ) THEN
snowdpth_ext(i,j) = -999
ELSE
! Convert water equiv. of accum. snow depth (kg/m**2) to meters
! (where 1 meter liquid water is set equivqlent to 10 meters snow).
! 0.01 = 10. (m snow/m liquid) / (1000 kg/m**3)
snowdpth_ext(i,j) = 0.01 * var_grb2d(i,j,6,1) ! in meters
END IF
! F.KONG add
IF( var_nr2d(1,2) == 0 ) THEN
t_2m_ext(i,j)= -999.0
ELSE
t_2m_ext(i,j)= var_grb2d(i,j,1,2)
END IF
IF( var_nr2d(2,2) == 0 ) THEN
qv_2m_ext(i,j)= -999.0
ELSE
qv_2m_ext(i,j)= var_grb2d(i,j,2,2)
END IF
IF( var_nr2d(3,2) == 0 ) THEN
u_10m_ext(i,j)= -999.0
ELSE
u_10m_ext(i,j)= var_grb2d(i,j,3,2)
END IF
IF( var_nr2d(4,2) == 0 ) THEN
v_10m_ext(i,j)= -999.0
ELSE
v_10m_ext(i,j)= var_grb2d(i,j,4,2)
END IF
IF ( var_nr2d(8,1) == 0 ) THEN
rain_ext(i,j)= -999.0
ELSE
rain_ext(i,j)= var_grb2d(i,j,8,1)
END IF
! end F.KONG mod
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
nz1 = MIN(var_nr3d(1,1),nz_ext)
IF ( var_lev3d(1,1,1) > var_lev3d(nz1,1,1) ) THEN ! 1st level at sfc
chklev = 1
lvscan = 0
ELSE
chklev = -1
lvscan = nz1+1
END IF
DO k=1,nz1
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
! p_ext (i,j,kk) = psfc_ext(i,j)
! : * float(var_lev3d(k,1))/10000.
! Pressure derived from sigma ccordinates
p_ext (i,j,kk) = 100.0 * FLOAT(var_lev3d(k,1,1)) ! Pressure
t_ext (i,j,kk) = var_grb3d(i,j,k,1,1) ! Temperature (K)
qv_ext (i,j,kk) = var_grb3d(i,j,k,2,1) ! Spec. humidity
! (kg/kg)
u_ext (i,j,kk) = var_grb3d(i,j,k,3,1) ! u wind (m/s)
v_ext (i,j,kk) = var_grb3d(i,j,k,4,1) ! v wind (m/s)
hgt_ext(i,j,kk) = var_grb3d(i,j,k,5,1) ! height (m)
qc_ext (i,j,kk) = -999.
qr_ext (i,j,kk) = -999.
qi_ext (i,j,kk) = -999.
qs_ext (i,j,kk) = -999.
qh_ext (i,j,kk) = -999.
END DO
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Calculate the height by using hytrostatical equation
!
!-----------------------------------------------------------------------
!
! DO 220 j=1,ny_ext
! DO 220 i=1,nx_ext
! tema = 0.5 * ( tsfc_ext (i,j) + t_ext (i,j,1) )
! temb = 0.5 * ( qvsfc_ext(i,j) + qv_ext(i,j,1) )
! temc = tema * (1.0 + 0.608*temb) ! Virtual temperature
! tema = 0.5 * ( psfc_ext (i,j) + p_ext (i,j,1) )
! temb = temc / tema
!
! hgt_ext(i,j,1) = trn_ext(i,j) + govrd * temb ! Height (m)
! : * ( psfc_ext(i,j) - p_ext(i,j,1) )
!220 CONTINUE
!
! DO 230 k=2,nz1
! DO 230 j=1,ny_ext
! DO 230 i=1,nx_ext
! tema = 0.5 * ( t_ext (i,j,k-1) + t_ext (i,j,k) )
! temb = 0.5 * ( qv_ext(i,j,k-1) + qv_ext(i,j,k) )
! temc = tema * (1.0 + 0.608*temb) ! Virtual temperature
! tema = 0.5 * ( p_ext (i,j,k-1) + p_ext (i,j,k) )
! temb = temc / tema
!
! hgt_ext(i,j,k) = hgt_ext(i,j,k-1) + govrd * temb ! Height (m)
! : * ( p_ext (i,j,k-1) - p_ext (i,j,k) )
!230 CONTINUE
!
!-----------------------------------------------------------------------
!
! Convert relative humidity to specific humidity
!
!-----------------------------------------------------------------------
IF (var_id3d(2,1) == 52) THEN ! 52 is relative humidity
! 51 is specific humidity
ALLOCATE(qvs_ext(nx_ext,ny_ext,nz_ext), STAT = iret)
CALL check_alloc_status(iret, "getnmceta212:qvs_ext")
CALL getqvs(nx_ext,ny_ext,nz_ext, 1,nx_ext,1,ny_ext,1,nz_ext, &
p_ext, t_ext, qvs_ext )
DO k=1,nz_ext
DO j=1,ny_ext
DO i=1,nx_ext
qv_ext(i,j,k) = 0.01*qv_ext(i,j,k)*qvs_ext(i,j,k)
END DO
END DO
END DO
DEALLOCATE(qvs_ext)
END IF
DEALLOCATE(var_grb2d,var_grb3d,rcdata,var_lev3d)
END IF
CALL setmapr(iproj_ext,scale_ext,latnot_ext,trlon_ext)
CALL lltoxy(1,1,latsw,lonsw,x0_ext,y0_ext)
DO i=1,nx_ext
x_ext(i)=x0_ext+(i-1)*dx_ext
END DO
DO j=1,ny_ext
y_ext(j)=y0_ext+(j-1)*dy_ext
END DO
CALL xytoll(nx_ext,ny_ext,x_ext,y_ext,lat_ext,lon_ext)
!---------------------------------------------------------------------
!
! Define soil depths
!
!---------------------------------------------------------------------
IF(soilmodel_option == 1 .AND. nzsoil_ext /= 2) THEN
WRITE(6,'(2a,I3,a/2a,I2,a/,a,a)') &
'NCEP GFS grid #212 only provides 4 soil layers, However,',&
' You are trying to extract ',nzsoil_ext, ' layers.', &
' for ARPS two-layer force-restore model ', &
'(soilmodel_option = ',soilmodel_option,')', &
' Please check the code ext2arps.f90 for NAM212 grid.', &
' Terminating ...'
CALL arpsstop('Wrong number soil layers.',1)
ELSE IF( soilmodel_option == 2 .AND. nzsoil_ext /= nzsoilin_ext+1) THEN
WRITE(6,'(2a,I3,a/2a,I2,a/,a,a)') &
'NCEP GFS grid #212 only provides 4 soil layers, However,',&
' You are trying to extract ',nzsoil_ext, ' layers.', &
' for ARPS multi-layer OUSoil model ', &
'(soilmodel_option = ',soilmodel_option,')', &
' Please check the code ext2arps.f90 for NAM212 grid.', &
' Terminating ...'
CALL arpsstop('Wrong number of soil layers.',1)
END IF
IF(soilmodel_option == 1) THEN
DO j=1,ny_ext
DO i=1,nx_ext
zpsoil_ext(i,j,1) = 0.05 ! any values should work because
zpsoil_ext(i,j,2) = 1.0 ! the ARPS system will ignore these values
END DO
END DO
ELSE
DO k=1,nzsoil_ext
DO j=1,ny_ext
DO i=1,nx_ext
zpsoil_ext(i,j,k) = (soildepth_ext(k+1)-soildepth_ext(k))/2 + soildepth_ext(k)
! The middle point for each layer
END DO
END DO
END DO
END IF
!
!-----------------------------------------------------------------------
!
! Rotate winds to be relative to true north.
! The RUC data are sent as grid-relative.
!
!-----------------------------------------------------------------------
!
DO k=1,nz_ext
CALL uvmptoe(nx_ext,ny_ext,u_ext(1,1,k),v_ext(1,1,k), &
lon_ext,utmp,vtmp)
u_ext(:,:,k) = utmp(:,:)
v_ext(:,:,k) = vtmp(:,:)
END DO
istatus = 1
!
!-----------------------------------------------------------------------
!
! Reset map projection to previous values
!
!-----------------------------------------------------------------------
!
999 CONTINUE
CALL setmapr(iproj,scale,latnot,trlon)
CALL setorig(1,x0,y0)
DEALLOCATE(utmp)
DEALLOCATE(vtmp)
RETURN
END SUBROUTINE getnmceta212
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETNMCETA218 ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE getnmceta218(notiles,nx_ext,ny_ext,nz_ext,nzsoil_ext, & 1,20
nstyps_ext,dir_extd,extdname,extdfmt,extdinit,extdfcst, &
domain_tile,npr,npc, &
iproj_ext,scale_ext,trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext,zpsoil_ext, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext,soiltyp_ext, &
t_2m_ext, qv_2m_ext, u_10m_ext, v_10m_ext, rain_ext, &
istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Reads a NMC GRIB (Grid #218, 12km) ETA file for processing by
! ext2arps, a program that converts external files to ARPS variables
! and format. This subroutine calls getnmceta218_data for each tile.
!
! NOTE:
!
! The description about Eta 12km tiled output is available at
! http://www.emc.ncep.noaa.gov/mmb/research/tiles.218.html.
!
! The data can be downloaded from
! ftpprd.ncep.noaa.gov/pub/data/nccf/com/nam/prod/nam.YYYYMMDD/tiles.tHHz
!
! This subroutine assumes that data has been downloaded to local
! disk and stored in "dir_extd"/"extdname".tCCz.awip218HH.YY
!
! where:
!
! o "dir_extd" is specified inside arps.input;
! o "extdname" supposed to be "eta" or others;
! o CC is the model cycle, extracted from "extdinit" (00,06,12,18);
! o HH is the forecast hour, extracted from "extdfcst";
! o YY is the tile number, determined from "domain_tile".
!
! This subroutine also requires ASCII files of the grid lat/lon
! for each tile, which can be got from
! ftp://ftpprd.ncep.noaa.gov/pub/emc/mmb/mmbpll/g218tiles.latlon
! and they should be stored to local disk inside directory
! "dir_extd"/.
!
! If the data is downloaded from NOMADS, it is a large file contains
! data over all tiles. The data file name should be:
! "dir_extd"/"extdname".YYYYMMDDHHfhh
!
!-----------------------------------------------------------------------
!
! AUTHOR: Yunheng Wang
! 07/07/2004
!
! MODIFICATION HISTORY:
!
! Yunheng Wang (03/14/2006)
! Added support for one large file contains data for all tiles, which
! is usually downloaded from NOMADS.
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! nx_ext
! ny_ext
! nz_ext
! nzsoil_ext
! nstyp_ext
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format
!
! domain_tile A 2D integer array which specifies the tiles to be read
! and their order.
! npr tile number per row of the above 2D array
! npc tile number per column of the above 2D array
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsoil_ext Soil temperature (K)
! qsoil_ext Soil moisture (m**3/m**3)
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! T_2m_ext Temperature at 2m AGL
! qv_2m_ext Specific Humidity at 2m AGL
! U_10m_ext U at 10m AGL
! V_10m_ext V at 10m AGL
!
! istatus status indicator
!
! WORK ARRAYS:
!
! var_grb3d Arrays to store the GRIB 3-D variables:
! var_grb3d(nxgrb,nygrb,nzgrb,1,1) - Temperature (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,1) - Specific humidity
! (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,3,1) - u wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,4,1) - v wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,5,1) - Geopotential
! height (gpm)
! var_grb3d(nxgrb,nygrb,nzgrb,6,1) - Pressure vertical
! velocity (Pa/s)
! (if applied)
! var_grb3d(nxgrb,nygrb,nzgrb,1,2) - soil temp. (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,2) - vol. soil moist.
! (m**3/m**3)
!
! var_grb2d Arrays to store the GRIB 2-D variables:
! var_grb2d(nxgrb,nygrb,1) - Surface pressure (Pa)
! var_grb2d(nxgrb,nygrb,2) - Geopotential height (gpm)
! var_grb2d(nxgrb,nygrb,3) - Surface temperature (K)
! var_grb2d(nxgrb,nygrb,4) - Plant canopy surface
! water (kg/m**2)
!
!-----------------------------------------------------------------------
IMPLICIT NONE
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
INCLUDE 'grid.inc'
INCLUDE 'gribcst.inc'
!-----------------------------------------------------------------------
!
! Variable declarations
!
!-----------------------------------------------------------------------
CHARACTER (LEN=*), INTENT(INOUT) :: dir_extd
CHARACTER (LEN=*), INTENT(IN) :: extdname
CHARACTER (LEN=19), INTENT(IN) :: extdinit
CHARACTER (LEN=9), INTENT(IN) :: extdfcst
INTEGER, INTENT(IN) :: extdfmt
INTEGER, INTENT(IN) :: notiles
INTEGER, INTENT(IN) :: nx_ext,ny_ext,nz_ext
INTEGER, INTENT(IN) :: nzsoil_ext, nstyps_ext
INTEGER, INTENT(IN) :: npr,npc
INTEGER, INTENT(IN) :: domain_tile(npr,npc)
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER, INTENT(OUT) :: iproj_ext
REAL, INTENT(OUT) :: scale_ext,trlon_ext
REAL, INTENT(OUT) :: latnot_ext(2)
REAL, INTENT(OUT) :: x0_ext,y0_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
REAL, INTENT(OUT) :: lat_ext(nx_ext,ny_ext)
REAL, INTENT(OUT) :: lon_ext(nx_ext,ny_ext)
REAL, INTENT(OUT) :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL, INTENT(OUT) :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL, INTENT(OUT) :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL, INTENT(OUT) :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL, INTENT(OUT) :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL, INTENT(OUT) :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL, INTENT(OUT) :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL, INTENT(OUT) :: zpsoil_ext(nx_ext,ny_ext,nzsoil_ext) !Soil depths (m)
REAL, INTENT(OUT) :: tsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Soil temperature (K)
REAL, INTENT(OUT) :: qsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Soil moisture (m**3/m**3)
REAL, INTENT(OUT) :: wetcanp_ext (nx_ext,ny_ext) ! Canopy water amount
REAL, INTENT(OUT) :: snowdpth_ext(nx_ext,ny_ext) ! Snow depth (m)
REAL, INTENT(OUT) :: trn_ext (nx_ext,ny_ext) ! External terrain (m)
REAL, INTENT(OUT) :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
INTEGER, INTENT(OUT) :: soiltyp_ext (nx_ext,ny_ext) ! Soil type
REAL, INTENT(OUT) :: t_2m_ext (nx_ext,ny_ext)
REAL, INTENT(OUT) :: qv_2m_ext(nx_ext,ny_ext)
REAL, INTENT(OUT) :: u_10m_ext(nx_ext,ny_ext)
REAL, INTENT(OUT) :: v_10m_ext(nx_ext,ny_ext)
REAL, INTENT(OUT) :: rain_ext(nx_ext,ny_ext)
!
!-----------------------------------------------------------------------
!
! Other external variable arrays
!
!-----------------------------------------------------------------------
!
REAL :: dx_ext,dy_ext
REAL :: x_ext(nx_ext)
REAL :: y_ext(ny_ext)
REAL :: latsw, lonsw
REAL :: latsw_t, lonsw_t
INTEGER :: istatus
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=256) :: gribfile
CHARACTER (LEN=256) :: tmpstr
CHARACTER (LEN=256) :: latlonfile
CHARACTER (LEN=13) :: gribtime
INTEGER :: grbflen
INTEGER :: it,jt
INTEGER :: i,j,k,kk
INTEGER :: iyr,imo,iday
INTEGER :: ihr,imin,isec
INTEGER :: ifhr,ifmin,ifsec
INTEGER :: nxgrb,nygrb
INTEGER :: offset_x, offset_y
INTEGER :: inunit, dir_len
REAL :: alat, alon
INTEGER :: iret ! Return flag
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:,:) ! GRIB variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:,:) ! GRIB 3-D variables
INTEGER, ALLOCATABLE :: var_lev3d(:,:,:) ! Levels (hybrid) for
! each 3-D variable
REAL, ALLOCATABLE :: rcdata(:) ! temporary data array
REAL, ALLOCATABLE :: utmp(:,:), vtmp(:,:)
INTEGER, PARAMETER :: nxmax = 69, nymax = 72 ! max size of the tiles
INTEGER, PARAMETER :: nxbdy = 62, nybdy = 68 ! size of tile at boundary
REAL, ALLOCATABLE :: qvs_ext(:,:,:)
REAL, ALLOCATABLE :: lat(:,:), lon(:,:)
LOGICAL :: grb2fmt = .FALSE.
INTEGER :: extffmt
INTEGER, PARAMETER :: nzsoilin_ext = 4
REAL, PARAMETER :: soildepth_ext(nzsoilin_ext+1) = (/0.0, 0.1, 0.4, 1.0, 2.0/)
! grid #218 contains 4 soil layers 0-1cm, 1-4cm, 4-100cm, 100-200cm.
!
!-----------------------------------------------------------------------
!
! Original grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj
REAL :: scale,trlon,x0,y0
REAL :: latnot(2)
INTEGER :: nxextin,nyextin
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Begining of executable code .....
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IF (notiles == 1) THEN
nxextin = nx_ext
nyextin = ny_ext
ELSE
nxextin = nxmax
nyextin = nymax
END IF
ALLOCATE(utmp(nx_ext,ny_ext), STAT = iret)
CALL check_alloc_status(iret, "getnmceta218:utmp")
ALLOCATE(vtmp(nx_ext,ny_ext), STAT = iret)
CALL check_alloc_status(iret, "getnmceta218:vtmp")
!-----------------------------------------------------------------------
!
! Save orignal grid map projection information
!
!-----------------------------------------------------------------------
CALL getmapr(iproj,scale,latnot,trlon,x0,y0)
!-----------------------------------------------------------------------
!
! Construct gribfile name and gribtime
!
!-----------------------------------------------------------------------
ifhr=0
ifmin=0
ifsec=0
! IF(extdfcst == ' ') extdfcst='000:00:00'
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
READ(extdfcst,'(i3)') ifhr
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i2.2)') &
iyr,imo,iday,ihr,'f',ifhr
dir_len=LEN_TRIM(dir_extd)
IF( dir_len == 0 .OR. dir_extd(1:dir_len) == ' ' ) THEN
dir_extd = '.'
dir_len = 1
END IF
IF( dir_extd(dir_len:dir_len) /= '/' ) THEN
dir_len = dir_len + 1
dir_extd(dir_len:dir_len) = '/'
END IF
!---------------------------------------------------------------------
!
! Define soil depths
!
!---------------------------------------------------------------------
IF(soilmodel_option == 1 .AND. nzsoil_ext /= 2) THEN
WRITE(6,'(2a,I3,a/2a,I2,a/,a,a)') &
'NCEP GFS grid #218 only provides 4 soil layers, However,',&
' You are trying to extract ',nzsoil_ext, ' layers.', &
' for ARPS two-layer force-restore model ', &
'(soilmodel_option = ',soilmodel_option,')', &
' Please check the code ext2arps.f90 for NAM218 grid.', &
' Terminating ...'
CALL arpsstop('Wrong number soil layers.',1)
ELSE IF( soilmodel_option == 2 .AND. nzsoil_ext /= nzsoilin_ext+1) THEN
WRITE(6,'(2a,I3,a/2a,I2,a/,a,a)') &
'NCEP GFS grid #218 only provides 4 soil layers, However,',&
' You are trying to extract ',nzsoil_ext, ' layers.', &
' for ARPS multi-layer OUSoil model ', &
'(soilmodel_option = ',soilmodel_option,')', &
' Please check the code ext2arps.f90 for NAM218 grid.', &
' Terminating ...'
CALL arpsstop('Wrong number of soil layers.',1)
END IF
IF(soilmodel_option == 1) THEN
DO j=1,ny_ext
DO i=1,nx_ext
zpsoil_ext(i,j,1) = 0.05 ! any values should work because
zpsoil_ext(i,j,2) = 1.0 ! the ARPS system will ignore these values
END DO
END DO
ELSE
DO k=1,nzsoil_ext
DO j=1,ny_ext
DO i=1,nx_ext
zpsoil_ext(i,j,k) = (soildepth_ext(k+1)-soildepth_ext(k))/2 + soildepth_ext(k)
! The middle point for each layer
END DO
END DO
END DO
END IF
!-----------------------------------------------------------------------
!
! Processing extdfmt
!
!-----------------------------------------------------------------------
grb2fmt = extdfmt >= 2000
extffmt = MOD(extdfmt,1000)
gribfile = ' '
IF (extffmt > 0) THEN
WRITE(tmpstr,'(3a)') TRIM(extdname),'.',gribtime(1:13)
ELSE
IF (grb2fmt) THEN
WRITE(tmpstr,'(a,2(a,I2.2),a)') &
TRIM(extdname),'.t',ihr,'z.awip3d',ifhr,'.tm00.grib2'
ELSE
WRITE(tmpstr,'(a,2(a,I2.2))') &
TRIM(extdname),'.t',ihr,'z.awip218',ifhr
END IF
END IF
! WRITE(gribfile,'(2a)') TRIM(dir_extd), TRIM(tmpstr)
! grbflen = LEN_TRIM(gribfile)
! WRITE(6,'(1x,2a,I4)') 'GRIB file to be read is ',gribfile(1:grbflen),grbflen
IF (.NOT. grb2fmt) THEN
ALLOCATE(var_grb2d(nxextin,nyextin,n2dvs,n2dlvt), STAT = iret)
CALL check_alloc_status(iret, "getnmceta218:var_grb2d")
ALLOCATE(var_grb3d(nxextin,nyextin,nz_ext,n3dvs,n3dlvt), STAT = iret)
CALL check_alloc_status(iret, "getnmceta218:var_grb3d")
ALLOCATE(rcdata (nxextin*nyextin), STAT = iret)
CALL check_alloc_status(iret, "getnmceta218:rcdata")
ALLOCATE(var_lev3d(nz_ext,n3dvs,n3dlvt), STAT = iret)
CALL check_alloc_status(iret, "getnmceta218:var_lev3d")
END IF
!-----------------------------------------------------------------------
!
! Begining loop over each tile
!
!-----------------------------------------------------------------------
DO jt = 1,npc
DO it = 1,npr
IF (notiles == 1) THEN
nxgrb = nx_ext
nygrb = ny_ext
WRITE(gribfile,'(3a)') TRIM(extdname),'.',gribtime(1:13)
ELSE
WRITE(gribfile,'(a,3(a,I2.2))') TRIM(tmpstr),'.',domain_tile(it,jt)
nxgrb = nxextin
nygrb = nyextin
IF ( MOD(domain_tile(it,jt), 9) == 0) nxgrb = nxbdy ! East boudnary
IF ( domain_tile(it,jt) >= 46 ) nygrb = nybdy ! North boudnary
END IF
IF (grb2fmt) THEN
!-----------------------------------------------------------------------
!
! Call getnmceta218_grb2
!
!-----------------------------------------------------------------------
CALL getnam218_grb2(notiles,nx_ext,ny_ext,nz_ext,nzsoil_ext, &
nzsoilin_ext,nxgrb,nygrb,it,jt, &
dir_extd,gribfile,gribtime,grbflen, &
soildepth_ext,dx_ext,dy_ext, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,latsw_t,lonsw_t, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext,soiltyp_ext, &
t_2m_ext, qv_2m_ext, u_10m_ext, v_10m_ext, rain_ext, &
istatus)
ELSE
!-----------------------------------------------------------------------
!
! Call getnmceta218_data for GRIB file
!
!-----------------------------------------------------------------------
CALL getnmceta218_data(notiles,nx_ext,ny_ext,nz_ext,nzsoil_ext, &
nstyps_ext,nxgrb,nygrb,it,jt, &
dir_extd,gribfile,gribtime,dx_ext,dy_ext, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,latsw_t,lonsw_t, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext,soiltyp_ext, &
t_2m_ext, qv_2m_ext, u_10m_ext, v_10m_ext, rain_ext, &
var_grb2d,var_grb3d,rcdata,var_lev3d,istatus)
END IF
IF (it == 1 .AND. jt == 1) THEN
latsw = latsw_t
lonsw = lonsw_t
END IF
IF (istatus < 0) GOTO 999
END DO
END DO
!
! Convert relative humidity to specific humidity
!
ALLOCATE(qvs_ext(nx_ext,ny_ext,nz_ext), STAT = iret)
CALL check_alloc_status(iret, "getnmceta218:qvs_ext")
CALL getqvs(nx_ext,ny_ext,nz_ext, 1,nx_ext,1,ny_ext,1,nz_ext, &
p_ext, t_ext, qvs_ext )
DO k=1,nz_ext
DO j=1,ny_ext
DO i=1,nx_ext
qv_ext(i,j,k) = 0.01*qv_ext(i,j,k)*qvs_ext(i,j,k)
END DO
END DO
END DO
!
! Convert surface 2-m RH to QV
! Assume 2-m pressure is the same as psfc
!
CALL getqvs(nx_ext,ny_ext,1, 1,nx_ext,1,ny_ext,1,1, &
psfc_ext, t_2m_ext, qvs_ext )
DO j=1,ny_ext
DO i=1,nx_ext
qv_2m_ext(i,j) = 0.01*qv_2m_ext(i,j)*qvs_ext(i,j,1)
END DO
END DO
DEALLOCATE(qvs_ext)
IF (.NOT. grb2fmt) THEN ! Deallocate working arrays for GRIB1 only
DEALLOCATE(var_grb2d,var_grb3d,rcdata,var_lev3d)
END IF
!-----------------------------------------------------------------------
!
! Set map projection and check for lat_ext, lon_ext etc.
!
!-----------------------------------------------------------------------
CALL setmapr(iproj_ext,scale_ext,latnot_ext,trlon_ext)
CALL lltoxy(1,1,latsw,lonsw,x0_ext,y0_ext)
DO i=1,nx_ext
x_ext(i)=x0_ext+(i-1)*dx_ext
END DO
DO j=1,ny_ext
y_ext(j)=y0_ext+(j-1)*dy_ext
END DO
CALL xytoll(nx_ext,ny_ext,x_ext,y_ext,lat_ext,lon_ext)
!-----------------------------------------------------------------------
!
! Check for data consistence.
!
!-----------------------------------------------------------------------
! ALLOCATE(lat(nx_ext,ny_ext), STAT = iret)
! ALLOCATE(lon(nx_ext,ny_ext), STAT = iret)
! lat(:,:) = lat_ext(:,:)
! lon(:,:) = lon_ext(:,:)
!-----------------------------------------------------------------------
!
! Get grid lat/lon from external ASCII file (For GRIB1 tiled data only)
!
! NOTE: This block is not necessary after we make sure everything
! is working correctly above.
!
!-----------------------------------------------------------------------
!
! lat_ext(:,:) = 0.0
! lon_ext(:,:) = 0.0
!
! inunit = 123
! DO jt = 1, npc
! DO it = 1, npr
! offset_x = (it-1)*nxmax
! offset_y = (jt-1)*nymax
!
! WRITE(latlonfile,'(a,a,I2.2)') dir_extd(1:dir_len), &
! 'latlon.grid218.',domain_tile(it,jt)
! OPEN(inunit, FILE=TRIM(latlonfile),FORM='FORMATTED',STATUS='OLD')
!
! DO WHILE(.TRUE.)
! READ(inunit,*, END=995) i,j, alat, alon
! lat_ext(offset_x+i,offset_y+j) = alat
! lon_ext(offset_x+i,offset_y+j) = -1*alon
! END DO
! 995 CONTINUE
!
! CLOSE(inunit)
! END DO
! END DO
!
! IF( ANY(lat_ext <= 12.0) .OR. ANY(lat_ext >= 62.0) .OR. &
! ANY(lon_ext >= -49.0) .OR. ANY(lon_ext <= -160.0) ) THEN
! WRITE(6,*) 'Some lat_ext or lon_ext have wrong value. ', &
! 'Please check the code.'
! STOP
! END IF
!-----------------------------------------------------------------------
!
! Check grid latitude and longitude
!
!-----------------------------------------------------------------------
!
! DO j = 1, ny_ext
! DO i = 1, nx_ext
!
! IF ( ABS(lat(i,j)-lat_ext(i,j)) > 0.01 .OR. &
! ABS(lon(i,j)-lon_ext(i,j)) > 0.01 ) THEN
! WRITE(6,'(2(a,I3),/,2(a,2F7.2,/))') &
! 'Unmatched grid at i = ',i,' j = ',j, &
! 'Expecting lat,lon = ',lat_ext(i,j), lon_ext(i,j), &
! 'Found lat,lon = ',lat(i,j),lon(i,j)
! STOP
! END IF
!
! END DO
! END DO
! DEALLOCATE(lat,lon)
!-----------------------------------------------------------------------
!
! Rotate winds to be relative to true north.
! The Eta data are sent as grid-relative.
!
!-----------------------------------------------------------------------
!
DO k=1,nz_ext
CALL uvmptoe(nx_ext,ny_ext,u_ext(1,1,k),v_ext(1,1,k), &
lon_ext,utmp,vtmp)
u_ext(:,:,k) = utmp(:,:)
v_ext(:,:,k) = vtmp(:,:)
END DO
istatus = 1
!
!-----------------------------------------------------------------------
!
! Reset map projection to previous values
!
!-----------------------------------------------------------------------
!
999 CONTINUE
CALL setmapr(iproj,scale,latnot,trlon)
CALL setorig(1,x0,y0)
DEALLOCATE(utmp, vtmp)
RETURN
END SUBROUTINE getnmceta218
SUBROUTINE getnmceta218_data(notiles,nx_ext,ny_ext,nz_ext,nzsoil_ext, & 1,1
nstyps_ext,nxgrb,nygrb,tile_x,tile_y, &
dir_extd,extdname,gribtime,dx_ext,dy_ext, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,latsw_t,lonsw_t, &
p_ext,hgt_ext,t_ext,rh_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext,soiltyp_ext, &
t_2m_ext, rh_2m_ext, u_10m_ext, v_10m_ext, rain_ext, &
var_grb2d,var_grb3d,rcdata,var_lev3d,istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Reads a NMC GRIB (Grid #218, 12km) ETA file for processing by
! EXT2ARPS. This subroutine reads one tile data and insert the data
! into the global domain (maybe multiple tiles or one tile) arrays.
!
!-----------------------------------------------------------------------
!
! AUTHOR: Yunheng Wang
! 07/06/2004
! Based on subroutine getnmceta212.
!
! MODIFICATION HISTORY:
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! nx_ext X dimension size of the global domain (maybe mupltiple tiles)
! ny_ext Y dimension size of the global domain (maybe mupltiple tiles)
! nz_ext Z dimension size (39 pressure levels)
! nzsoil_ext 5 layers (Surface, 0-10cm, 10-40cm, 40-100cm, 100-200cm)
! nstyps_ext =1
! nxgrb Tile size in X direction (69/62)
! nygrb Tile size in Y direction (72/68)
! tile_x This tile location in the multiple tile domain in X direction
! tile_y This tile location in the multiple tile domain in Y direction
! dir_extd Directory name for external file
! extdname External file name
! gribtime Data valid time, YYYYMMDDHHfHH
!
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! latsw_t latitude of the southwest corner of this tile (degrees N)
! lonsw_t longitude of the southwest corner of this tile (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! rh_ext relative humidity (%)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsoil_ext Soil temperature (K)
! qsoil_ext Soil moisture (m**3/m**3)
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! T_2m_ext Temperature at 2m AGL
! Rh_2m_ext Relative Humidity at 2m AGL
! U_10m_ext U at 10m AGL
! V_10m_ext V at 10m AGL
!
! istatus status indicator
!
! WORK ARRAYS:
!
! var_grb3d Arrays to store the GRIB 3-D variables:
! var_grb3d(nxgrb,nygrb,nzgrb,1,1) - Temperature (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,1) - Specific humidity
! (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,3,1) - u wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,4,1) - v wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,5,1) - Geopotential
! height (gpm)
! var_grb3d(nxgrb,nygrb,nzgrb,6,1) - Pressure vertical
! velocity (Pa/s)
! (if applied)
! var_grb3d(nxgrb,nygrb,nzgrb,1,2) - soil temp. (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,2) - vol. soil moist.
! (m**3/m**3)
!
! var_grb2d Arrays to store the GRIB 2-D variables:
! var_grb2d(nxgrb,nygrb,1,1) - Surface pressure (Pa)
! var_grb2d(nxgrb,nygrb,2,1) - Geopotential height (gpm)
! var_grb2d(nxgrb,nygrb,3,1) - Surface temperature (K)
! var_grb2d(nxgrb,nygrb,4,1) - Plant canopy surface
! water (kg/m**2)
! var_grb2d(nxgrb,nygrb,1,2) - 2-m temperature (Pa)
! var_grb2d(nxgrb,nygrb,2,2) - 2-m specific humidity (kg/kg)
! var_grb2d(nxgrb,nygrb,3,2) - 10-m U velocity (m/s)
! var_grb2d(nxgrb,nygrb,4,2) - 10-m V velocity (m/s)
!
! rcdata
!
! var_lev3d
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INCLUDE 'gribcst.inc'
CHARACTER(LEN=*), INTENT(INOUT) :: dir_extd
CHARACTER(LEN=*), INTENT(IN) :: extdname
CHARACTER(LEN=*), INTENT(IN) :: gribtime
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER, INTENT(IN) :: notiles
INTEGER, INTENT(IN) :: nx_ext,ny_ext ! multiple tiles size
INTEGER, INTENT(IN) :: nxgrb, nygrb ! one tile size
INTEGER, INTENT(IN) :: nz_ext
INTEGER, INTENT(IN) :: nzsoil_ext, nstyps_ext
INTEGER, INTENT(IN) :: tile_x, tile_y
INTEGER, INTENT(OUT) :: iproj_ext
REAL, INTENT(OUT) :: scale_ext,trlon_ext
REAL, INTENT(OUT) :: latnot_ext(2)
REAL, INTENT(OUT) :: latsw_t
REAL, INTENT(OUT) :: lonsw_t
REAL, INTENT(OUT) :: dx_ext,dy_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
REAL, INTENT(OUT) :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL, INTENT(OUT) :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL, INTENT(OUT) :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL, INTENT(OUT) :: rh_ext (nx_ext,ny_ext,nz_ext) ! Relative humidity (%)
REAL, INTENT(OUT) :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL, INTENT(OUT) :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL, INTENT(OUT) :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL, INTENT(OUT) :: tsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Soil temperature (K)
REAL, INTENT(OUT) :: qsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Soil moisture (m**3/m**3)
REAL, INTENT(OUT) :: wetcanp_ext (nx_ext,ny_ext) ! Canopy water amount
REAL, INTENT(OUT) :: snowdpth_ext(nx_ext,ny_ext) ! Snow depth (m)
REAL, INTENT(OUT) :: trn_ext (nx_ext,ny_ext) ! External terrain (m)
REAL, INTENT(OUT) :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
INTEGER, INTENT(OUT) :: soiltyp_ext (nx_ext,ny_ext) ! Soil type
REAL, INTENT(OUT) :: t_2m_ext (nx_ext,ny_ext)
REAL, INTENT(OUT) :: rh_2m_ext (nx_ext,ny_ext)
REAL, INTENT(OUT) :: u_10m_ext (nx_ext,ny_ext)
REAL, INTENT(OUT) :: v_10m_ext (nx_ext,ny_ext)
REAL, INTENT(OUT) :: rain_ext (nx_ext,ny_ext)
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
INCLUDE 'grid.inc'
!
!-----------------------------------------------------------------------
!
! Other external variable arrays
!
!-----------------------------------------------------------------------
!
INTEGER, INTENT(OUT) :: istatus
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, INTENT(OUT) :: var_grb2d(nxgrb,nygrb,n2dvs,n2dlvt) ! GRIB variables
REAL, INTENT(OUT) :: var_grb3d(nxgrb,nygrb,nz_ext,n3dvs,n3dlvt)
! GRIB 3-D variables
INTEGER, INTENT(OUT) :: var_lev3d(nz_ext,n3dvs,n3dlvt) ! Levels (hybrid) for
! each 3-D variable
REAL, INTENT(OUT) :: rcdata(nxgrb*nygrb) ! temporary data array
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=256) :: gribfile
INTEGER :: offset_x, offset_y
INTEGER :: i,j,k,kk
INTEGER :: grbflen
INTEGER :: m,n,nz1,max_nr2d,max_nr3d
INTEGER :: chklev, lvscan
INTEGER :: iret ! Return flag
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=42) :: gridesc ! Grid description
INTEGER :: iproj_grb ! Map projection indicator
INTEGER :: gthin ! Indicator of whether the grid is "thinned"
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
INTEGER :: np_grb ! Total number of horizontal grid points
INTEGER :: nk_grb ! Number of vertical parameters
REAL :: zk_grb(nz_ext) ! Vertical coordinate parameters
INTEGER :: npeq ! Number of lat circles from pole to equator
INTEGER :: nit(nz_ext) ! Number of x-points for thinned grid
REAL :: pi_grb ! x-coordinate of pole point
REAL :: pj_grb ! y-coordinate of pole point
INTEGER :: ipole ! Projection center flag
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
REAL :: latne ! Latitude of North East corner point
REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
REAL :: latrot ! Latitude of southern pole of rotation
REAL :: lonrot ! Longitude of southern pole of rotation
REAL :: angrot ! Angle of rotation
REAL :: latstr ! Latitude of the pole of stretching
REAL :: lonstr ! Longitude of the pole of stretching
REAL :: facstr ! Stretching factor
INTEGER :: scanmode ! Scanning indicator
INTEGER :: iscan ! x-direction scanning indicator
INTEGER :: jscan ! y-direction scanning indicator
INTEGER :: kscan ! FORTRAN index scanning indicator
INTEGER :: ires ! Resolution direction increments indicator
INTEGER :: iearth ! Earth shape indicator: spherical or oblate?
INTEGER :: icomp ! (u,v) components decomposition indicator
INTEGER :: jpenta ! J-Pentagonal resolution parameter
INTEGER :: kpenta ! K-Pentagonal resolution parameter
INTEGER :: mpenta ! M-Pentagonal resolution parameter
INTEGER :: ispect ! Spectral representation type
INTEGER :: icoeff ! Spectral coefficient storage mode
REAL :: xp_grb ! X coordinate of sub-satellite point
REAL :: yp_grb ! Y coordinate of sub-satellite point
REAL :: xo_grb ! X coordinate of image sector origin
REAL :: yo_grb ! Y coordinate of image sector origin
REAL :: zo_grb ! Camera altitude from center of Earth
LOGICAL, PARAMETER :: verbose = .FALSE.
INTEGER, PARAMETER :: nxmax = 69, nymax = 72
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
gribfile = TRIM(dir_extd)//TRIM(extdname)
grbflen = LEN_TRIM(gribfile)
!
!-----------------------------------------------------------------------
!
! RDNMCGRB reads NMC GRIB data
!
!-----------------------------------------------------------------------
!
IF (notiles == 1) THEN
gridtyp = eta218grid
ELSE
gridtyp = 255
END IF
mproj_grb = eta218proj
n2dvars = eta218nvs2d
n2dlvtps = eta218nlvt2d
DO k=1,n2dlvtps
DO n=1,n2dvars
var_id2d(n,k) = eta218var_id2d(n,k)
END DO
levtyp2d(k) = eta218levs2d(k)
END DO
n3dvars = eta218nvs3d
n3dlvtps = eta218nlvt3d
DO m=1,n3dlvtps
DO n=1,n3dvars
var_id3d(n,m) = eta218var_id3d(n,m)
END DO
levtyp3d(m) = eta218levs3d(m)
END DO
CALL rdnmcgrb(nxgrb,nygrb,nz_ext,gribfile,grbflen, gribtime, &
gridesc, iproj_grb, gthin, &
ni_grb,nj_grb,np_grb, nk_grb,zk_grb, npeq,nit, &
pi_grb,pj_grb,ipole, di_grb,dj_grb, &
latsw,lonsw, latne,lonne, &
latrot,lonrot,angrot, &
latstr,lonstr,facstr, &
lattru1,lattru2,lontrue, &
scanmode, iscan,jscan,kscan, &
ires,iearth,icomp, &
jpenta,kpenta,mpenta,ispect,icoeff, &
xp_grb,yp_grb, xo_grb,yo_grb,zo_grb, &
rcdata,var_grb2d,var_grb3d,var_lev3d,lvldbg,iret)
IF (iret /= 0) THEN
ISTATUS = -888
RETURN
END IF
max_nr2d = 0
DO n=1,n2dvars
DO m=1,n2dlvtps
max_nr2d = MAX( max_nr2d, var_nr2d(n,m) )
END DO
END DO
max_nr3d = 0
DO n=1,n3dvars
max_nr3d = MAX( max_nr3d, var_nr3d(n,1) )
END DO
IF ( max_nr3d == 0 ) THEN
WRITE (6,'(a)') &
'No 3-D variable was found in the GRIB file ',TRIM(gribfile), &
' Dataset problem in GETNMCETA218.', &
' '
istatus = -888
RETURN
END IF
IF ( max_nr2d == 0 ) THEN
WRITE (6,'(a)') &
'No 2-D variables was found in the GRIB file'
END IF
IF (verbose) THEN
WRITE (6,'(/a7,2x,6(i7))') 'Lev\\VID',(var_id3d(n,1),n=1,n3dvars)
DO k=1,max_nr3d
WRITE (6,'(/i5,4x,6(i7))') k,(var_lev3d(k,n,1),n=1,n3dvars)
END DO
END IF
DO k=1,max_nr3d
DO n=2,n3dvars
IF ( var_lev3d(k,1,1) /= var_lev3d(k,n,1) ) THEN
WRITE (6,'(a)') &
'Variables were not at the same level.', &
'Dataset problem in GETNMCETA218.', &
' '
istatus = -888
RETURN
END IF
END DO
END DO
IF ( iproj_grb == 5 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 1
ELSE IF ( iproj_grb == 5 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -1
ELSE IF ( iproj_grb == 3 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 2
ELSE IF ( iproj_grb == 3 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -2
ELSE IF ( iproj_grb == 1 ) THEN
iproj_ext = 3
ELSE IF ( iproj_grb == 0 ) THEN
iproj_ext = 4
ELSE
WRITE (6,'(a)') 'Unknown map projection. Set to non-projection.'
iproj_ext = 0
END IF
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
!
! Do some check here, such as nxgrd, nygrd.
!
IF (iproj_grb /= mproj_grb) THEN
WRITE(6,*) 'Map projection unmatch, expecting ',mproj_grb,' Found ',iproj_ext
! STOP
ISTATUS = -888
RETURN
END IF
IF(ni_grb /= nxgrb .OR. nj_grb /= nygrb) THEN
WRITE(6,'(2(a,I4),/,2(a,I4))') &
'Data array size inconsistent, expecting nxgrb = ',nxgrb, &
' nygrb = ',nygrb, &
' Found: ni_grb = ',ni_grb, &
' nj_grb = ',nj_grb
istatus = -888
RETURN
END IF
dx_ext = di_grb
dy_ext = dj_grb
latsw_t = latsw
lonsw_t = lonsw
offset_x = (tile_x-1)*nxmax ! Offset of this tile in the multiple
offset_y = (tile_y-1)*nymax ! tile domain.
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
DO j=1,nygrb
DO i=1,nxgrb
IF ( var_nr2d(1,1) == 0 ) THEN
psfc_ext (offset_x+i,offset_y+j) = -999.0
ELSE
psfc_ext (offset_x+i,offset_y+j) = var_grb2d(i,j,1,1)
END IF
IF ( var_nr2d(2,1) == 0 ) THEN
trn_ext (offset_x+i,offset_y+j) = -999.0
ELSE
trn_ext (offset_x+i,offset_y+j) = var_grb2d(i,j,2,1)
END IF
IF ( var_nr2d(4,1) == 0 ) THEN
wetcanp_ext(offset_x+i,offset_y+j) = -999.0
ELSE
wetcanp_ext(offset_x+i,offset_y+j) = var_grb2d(i,j,4,1)*1.e-3 ! in meter
END IF
IF ( var_nr2d(6,1) == 0 ) THEN
snowdpth_ext(offset_x+i,offset_y+j) = -999
ELSE
! Convert water equiv. of accum. snow depth (kg/m**2) to meters
! (where 1 meter liquid water is set equivqlent to 10 meters snow).
! 0.01 = 10. (m snow/m liquid) / (1000 kg/m**3)
snowdpth_ext(offset_x+i,offset_y+j) = 0.01 * var_grb2d(i,j,6,1) ! in meters
END IF
IF ( var_nr2d(7,1) == 0 ) THEN
rain_ext(offset_x+i,offset_y+j)= -999.0
ELSE
rain_ext(offset_x+i,offset_y+j)= var_grb2d(i,j,7,1)
END IF
IF( var_nr2d(1,2) == 0 ) THEN
t_2m_ext(offset_x+i,offset_y+j)= -999.0
ELSE
t_2m_ext(offset_x+i,offset_y+j)= var_grb2d(i,j,1,2) ! 2-m temperature
END IF
IF( var_nr2d(2,2) == 0 ) THEN
rh_2m_ext(offset_x+i,offset_y+j)= -999.0
ELSE
rh_2m_ext(offset_x+i,offset_y+j)= var_grb2d(i,j,2,2) ! 2-m relative humidity
END IF
IF( var_nr2d(3,2) == 0 ) THEN
u_10m_ext(offset_x+i,offset_y+j)= -999.0
ELSE
u_10m_ext(offset_x+i,offset_y+j)= var_grb2d(i,j,3,2) ! 10-m U
END IF
IF( var_nr2d(4,2) == 0 ) THEN
v_10m_ext(offset_x+i,offset_y+j)= -999.0
ELSE
v_10m_ext(offset_x+i,offset_y+j)= var_grb2d(i,j,4,2) ! 10-m V
END IF
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
nz1 = MIN(var_nr3d(1,1),nz_ext)
IF ( var_lev3d(1,1,1) > var_lev3d(nz1,1,1) ) THEN ! 1st level at sfc
chklev = 1
lvscan = 0
ELSE
chklev = -1
lvscan = nz1+1
END IF
DO k=1,nz1
kk = chklev * k + lvscan
DO j=1,nygrb
DO i=1,nxgrb
p_ext (offset_x+i,offset_y+j,kk) = 100.0 * FLOAT(var_lev3d(k,1,1))
! Pressure
t_ext (offset_x+i,offset_y+j,kk) = var_grb3d(i,j,k,1,1)
! Temperature (K)
rh_ext (offset_x+i,offset_y+j,kk) = var_grb3d(i,j,k,2,1)
! Relative humidity (%)
u_ext (offset_x+i,offset_y+j,kk) = var_grb3d(i,j,k,3,1) ! u wind (m/s)
v_ext (offset_x+i,offset_y+j,kk) = var_grb3d(i,j,k,4,1) ! v wind (m/s)
hgt_ext(offset_x+i,offset_y+j,kk) = var_grb3d(i,j,k,5,1) ! height (m)
qc_ext (offset_x+i,offset_y+j,kk) = -999.
qr_ext (offset_x+i,offset_y+j,kk) = -999.
qi_ext (offset_x+i,offset_y+j,kk) = -999.
qs_ext (offset_x+i,offset_y+j,kk) = -999.
qh_ext (offset_x+i,offset_y+j,kk) = -999.
END DO
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrive land surface variables
!
!-----------------------------------------------------------------------
DO j = 1,nygrb
DO i = 1, nxgrb
IF ( var_nr3d(1,2) == 0 ) THEN
DO k=1,nzsoil_ext
tsoil_ext (offset_x+i,offset_y+j,k) = -999.0
qsoil_ext (offset_x+i,offset_y+j,k) = -999.0
END DO
ELSE
IF (soilmodel_option == 1) THEN ! Old ARPS Force-Restore Soil Model
tsoil_ext(offset_x+i,offset_y+j,1) = var_grb2d(i,j,3,1)
IF ( nint(var_grb2d(i,j,5,1)) == 1 ) THEN ! Over land
tsoil_ext(offset_x+i,offset_y+j,2) = &
0.1 * var_grb3d(i,j,1,1,2) & ! 0-10cm
+ 0.3 * var_grb3d(i,j,2,1,2) & ! 10-40cm
+ 0.6 * var_grb3d(i,j,3,1,2) ! 40-100cm
soiltyp_ext(offset_x+i,offset_y+j) = 0
ELSE ! Over sea
tsoil_ext(offset_x+i,offset_y+j,2) = var_grb2d(i,j,3,1)
soiltyp_ext(offset_x+i,offset_y+j) = 13 ! Set soil type to water
END IF
qsoil_ext(offset_x+i,offset_y+j,1) = var_grb3d(i,j,1,2,2)
qsoil_ext(offset_x+i,offset_y+j,2) = 0.1 * var_grb3d(i,j,1,2,2) & ! 0-10cm
+ 0.3 * var_grb3d(i,j,2,2,2) & ! 10-40cm
+ 0.6 * var_grb3d(i,j,3,2,2) ! 40-100cm
ELSE ! OU Soil model
IF ( nint(var_grb2d(i,j,5,1)) == 1 ) THEN ! Over land
tsoil_ext (offset_x+i,offset_y+j,1) = var_grb2d(i,j,3,1) ! Ground temperature
qsoil_ext (offset_x+i,offset_y+j,1) = var_grb3d(i,j,1,2,2)
! Assumed to be same as first below ground level.
DO k=2,nzsoil_ext
! "TSOIL" in GRIB is below ground, treated as separate
! variable from ground temperature.
tsoil_ext (offset_x+i,offset_y+j,k) = var_grb3d(i,j,k-1,1,2) ! Not a bug;
qsoil_ext (offset_x+i,offset_y+j,k) = var_grb3d(i,j,k-1,2,2)
END DO
ELSE ! Over water
DO k=1,nzsoil_ext
tsoil_ext (offset_x+i,offset_y+j,k) = var_grb2d(i,j,3,1) ! Ground temperature
qsoil_ext (offset_x+i,offset_y+j,k) = 1. ! 100% water
END DO
END IF
END IF ! soilmodel_option
END IF
END DO
END DO
istatus = 1
RETURN
END SUBROUTINE getnmceta218_data
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE SWAPJ ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE swapj(nx,ny,nz,varval)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! This routine swaps values in the y direction so that the
! reanalysis grid goes S to N in the +j direction
!
!-----------------------------------------------------------------------
!
! AUTHOR: Dennis Moon, SSESCO
! 06/19/1998
!
! MODIFICATION HISTORY:
!
!-----------------------------------------------------------------------
!
! INPUT:
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INTEGER*4 nx,ny,nz,i,j,k
REAL*4 varval(nx,ny,nz), tmpval
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
DO k=1,nz
DO i=1,nx
DO j=1,ny/2
tmpval = varval(i,ny-j+1,k)
varval(i,ny-j+1,k) = varval(i,j,k)
varval(i,j,k) = tmpval
END DO
END DO
END DO
RETURN
END SUBROUTINE swapj
!
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETNMCRUCN236 ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE getnmcrucn236(nx_ext,ny_ext,nz_ext, & 1,11
dir_extd,extdname,extdopt,extdfmt, &
extdinit,extdfcst,julfname, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsfc_ext,tdeep_ext,wetsfc_ext,wetdp_ext,wetcanp_ext, &
trn_ext,psfc_ext,snowdpth_ext, &
istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Reads in a GRIB file containing native coordinate RUC2 data
! (Grid 236 or Grid 252) and extracts/converts selected variables
! for use by EXT2ARPS.
!
!-----------------------------------------------------------------------
!
! AUTHOR: Eric Kemp
! 09/17/1999
! Based on subroutine GETNMCRUC87.
!
! MODIFICATION HISTORY:
!
! 11/01/1999 Eric Kemp
! Corrected several bugs in variable retrievals, and added
! retrieval of RUC2 hydrometeor fields.
!
! 1999/11/30 Gene Bassett
! Corrected RUC2 soil moisture and changed deep soil moisture &
! temperature to be an average from 0 to 100cm.
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdopt Option of external data sources
! extdfmt Option of external data format
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format
! julfname File name in yyjjjhhmm format
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsfc_ext Surface temperature
! tdeep_ext Soil temperature
! wetsfc_ext Top layer soil moisture (fraction)
! wetdp_ext Deep soil moisture (fraction)
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
! snowdpth_ext Snow depth (m)
!
! istatus status indicator
!
! WORK ARRAYS:
!
! var_grb3d Arrays to store the GRIB 3-D variables:
! var_grb3d(nxgrb,nygrb,nzgrb,1,1) - pressure (Pa)
! var_grb3d(nxgrb,nygrb,nzgrb,2,1) - height (m)
! var_grb3d(nxgrb,nygrb,nzgrb,3,1) - Virtual Potential
! temperature (K)
! var_grb3d(nxgrb,nygrb,nzgrb,4,1) - Water vapor
! mixing ratio
! (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,5,1) - u wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,6,1) - v wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,7,1)
! - cloud water mixing ratio (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,8,1)
! - rain water mixing ratio (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,9,1)
! - ice mixing ratio (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,10,1)
! - snow mixing ratio (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,11,1)
! - graupel mixing ratio (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,1,2) - soil temp. (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,2) - soil moist.
! (fraction)
!
! var_grb2d Arrays to store the GRIB 2-D variables:
! var_grb2d(nxgrb,nygrb,1) - Canopy Water
! (kg/m**2)
! var_grb2d(nxgrb,nygrb,2) - Snow depth (m)
! var_grb2d(nxgrb,nygrb,3) - Surface soil temperature (K)
! var_grb2d(nxgrb,nygrb,4) - Surface soil moisture
! (fraction)
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INCLUDE 'gribcst.inc'
CHARACTER (LEN=*) :: dir_extd
CHARACTER (LEN=*) :: extdname
INTEGER :: extdopt
INTEGER :: extdfmt
CHARACTER (LEN=19) :: extdinit
CHARACTER (LEN=9) :: extdfcst
CHARACTER (LEN=9) :: julfname
!
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj_ext
REAL :: scale_ext,trlon_ext
REAL :: latnot_ext(2)
REAL :: x0_ext,y0_ext
REAL :: dx_ext,dy_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
INTEGER :: nx_ext, ny_ext, nz_ext
REAL :: lat_ext(nx_ext,ny_ext)
REAL :: lon_ext(nx_ext,ny_ext)
REAL :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL :: tsfc_ext (nx_ext,ny_ext) ! Temperature at surface (K)
REAL :: tdeep_ext (nx_ext,ny_ext) ! Deep soil temperature (K)
REAL :: wetsfc_ext (nx_ext,ny_ext) ! Surface soil moisture (fraction)
REAL :: wetdp_ext (nx_ext,ny_ext) ! Deep soil moisture (fraction)
REAL :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL :: trn_ext (nx_ext,ny_ext) ! Geometrical heights
REAL :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
REAL :: snowdpth_ext (nx_ext,ny_ext) ! Snow depth (m)
!
!-----------------------------------------------------------------------
!
! Other external variable arrays
!
!-----------------------------------------------------------------------
!
REAL :: x_ext(nx_ext)
REAL :: y_ext(ny_ext)
INTEGER :: istatus
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:,:) ! GRIB variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:,:) ! GRIB 3-D variables
INTEGER, ALLOCATABLE :: var_lev3d(:,:,:) ! Levels (hybrid) for
! each 3-D variable
REAL, ALLOCATABLE :: rcdata(:) ! temporary data array
!
!-----------------------------------------------------------------------
!
! Original grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj
REAL :: scale,trlon,x0,y0
REAL :: latnot(2)
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=256) :: gribfile
CHARACTER (LEN=13) :: gribtime
INTEGER :: i,j,k
INTEGER :: iyr,imo,iday,myr, jldy
INTEGER :: ihr,imin,isec
INTEGER :: ifhr,ifmin,ifsec
INTEGER :: grbflen, len1, lenrun
INTEGER :: m,n,nz1,max_nr2d,max_nr3d
REAL :: pilev
REAL :: tv_ext, tvc_ext
REAL :: rovcp_p, cpd_p, g0_p, rd_p
INTEGER :: chklev, lvscan, kk, jj
REAL :: tema, temb
REAL :: a,b
INTEGER :: iret ! Return flag
REAL, ALLOCATABLE :: utmp(:,:), vtmp(:,:)
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=42) :: gridesc ! Grid description
INTEGER :: iproj_grb ! Map projection indicator
INTEGER :: gthin ! Indicator of whether the grid is "thinned"
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
INTEGER :: np_grb ! Total number of horizontal grid points
INTEGER :: nk_grb ! Number of vertical parameters
REAL :: zk_grb(nz_ext) ! Vertical coordinate parameters
INTEGER :: npeq ! Number of lat circles from pole to equator
INTEGER :: nit(nz_ext) ! Number of x-points for thinned grid
REAL :: pi_grb ! x-coordinate of pole point
REAL :: pj_grb ! y-coordinate of pole point
INTEGER :: ipole ! Projection center flag
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
REAL :: latne ! Latitude of North East corner point
REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
REAL :: latrot ! Latitude of southern pole of rotation
REAL :: lonrot ! Longitude of southern pole of rotation
REAL :: angrot ! Angle of rotation
REAL :: latstr ! Latitude of the pole of stretching
REAL :: lonstr ! Longitude of the pole of stretching
REAL :: facstr ! Stretching factor
INTEGER :: scanmode ! Scanning indicator
INTEGER :: iscan ! x-direction scanning indicator
INTEGER :: jscan ! y-direction scanning indicator
INTEGER :: kscan ! FORTRAN index scanning indicator
INTEGER :: ires ! Resolution direction increments indicator
INTEGER :: iearth ! Earth shape indicator: spherical or oblate?
INTEGER :: icomp ! (u,v) components decomposition indicator
INTEGER :: jpenta ! J-Pentagonal resolution parameter
INTEGER :: kpenta ! K-Pentagonal resolution parameter
INTEGER :: mpenta ! M-Pentagonal resolution parameter
INTEGER :: ispect ! Spectral representation type
INTEGER :: icoeff ! Spectral coefficient storage mode
REAL :: xp_grb ! X coordinate of sub-satellite point
REAL :: yp_grb ! Y coordinate of sub-satellite point
REAL :: xo_grb ! X coordinate of image sector origin
REAL :: yo_grb ! Y coordinate of image sector origin
REAL :: zo_grb ! Camera altitude from center of Earth
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
ALLOCATE(var_grb2d(nx_ext,ny_ext,n2dvs,n2dlvt))
ALLOCATE(var_grb3d(nx_ext,ny_ext,nz_ext,n3dvs,n3dlvt))
ALLOCATE(rcdata(nx_ext*ny_ext))
ALLOCATE(var_lev3d(nz_ext,n3dvs,n3dlvt))
ALLOCATE(utmp(nx_ext,ny_ext))
ALLOCATE(vtmp(nx_ext,ny_ext))
IF ( extdfcst == ' ') extdfcst='000:00:00'
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
CALL julday(iyr,imo,iday,jldy)
myr=MOD(iyr,100)
ifhr=0
ifmin=0
ifsec=0
READ (extdfcst,'(i3)',ERR=4,END=4) ifhr
4 CONTINUE
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i2.2)') &
iyr,imo,iday,ihr,'f',ifhr
len1=LEN(dir_extd)
grbflen=len1
CALL strlnth( dir_extd, grbflen )
IF( grbflen == 0 .OR. dir_extd(1:grbflen) == ' ' ) THEN
dir_extd = '.'
grbflen=1
END IF
IF( dir_extd(grbflen:grbflen) /= '/'.AND.grbflen < len1 ) THEN
grbflen=grbflen+1
dir_extd(grbflen:grbflen)='/'
END IF
lenrun = LEN( extdname )
CALL strlnth( extdname, lenrun )
gribfile = dir_extd(1:grbflen)//extdname(1:lenrun) &
//'.'//gribtime(1:13)
grbflen = grbflen + lenrun + 14
!
!-----------------------------------------------------------------------
!
! RDNMCGRB reads NMC GRIB data
!
!-----------------------------------------------------------------------
!
IF (extdopt == 18) THEN
gridtyp = rucn252grid
ELSE
gridtyp = rucn236grid
END IF
mproj_grb = rucn236proj
n2dvars = rucn236nvs2d
n2dlvtps = rucn236nlvt2d
DO m=1,n2dlvtps
DO n=1,n2dvars
var_id2d(n,m) = rucn236var_id2d(n,m)
END DO
levtyp2d(m) = rucn236levs2d(m)
END DO
n3dvars = rucn236nvs3d
n3dlvtps = rucn236nlvt3d
DO m=1,n3dlvtps
DO n=1,n3dvars
var_id3d(n,m) = rucn236var_id3d(n,m)
END DO
levtyp3d(m) = rucn236levs3d(m)
END DO
CALL rdnmcgrb(nx_ext,ny_ext,nz_ext,gribfile,grbflen, gribtime, &
gridesc, iproj_grb, gthin, &
ni_grb,nj_grb,np_grb, nk_grb,zk_grb, npeq,nit, &
pi_grb,pj_grb,ipole, di_grb,dj_grb, &
latsw,lonsw, latne,lonne, &
latrot,lonrot,angrot, &
latstr,lonstr,facstr, &
lattru1,lattru2,lontrue, &
scanmode, iscan,jscan,kscan, &
ires,iearth,icomp, &
jpenta,kpenta,mpenta,ispect,icoeff, &
xp_grb,yp_grb, xo_grb,yo_grb,zo_grb, &
rcdata,var_grb2d,var_grb3d,var_lev3d,lvldbg,iret)
IF (iret /= 0) THEN
ISTATUS = -888
GOTO 999
END IF
max_nr2d = 0
DO n=1,n2dvars
DO m=1,n2dlvtps
max_nr2d = MAX( max_nr2d, var_nr2d(n,m) )
END DO
END DO
max_nr3d = 0
DO n=1,n3dvars
max_nr3d = MAX( max_nr3d, var_nr3d(n,1) )
END DO
IF ( max_nr3d == 0 ) THEN
WRITE (6,'(a)') &
'No 3-D variables was found in the GRIB file', &
'Program stopped in GETNMCRUC.'
! STOP
ISTATUS = -888
GOTO 999
END IF
IF ( max_nr2d == 0 ) THEN
WRITE (6,'(a)') &
'No 2-D variables was found in the GRIB file'
END IF
! write (6,'(/a7,2x,6(i7))')
! : 'Lev\\VID',(var_id3d(n,1),n=1,n3dvars)
! DO 60 k=1,max_nr3d
! write (6,'(i5,4x,6(i7))')
! : k,(var_lev3d(k,n,1),n=1,n3dvars)
60 CONTINUE
DO k=1,max_nr3d
DO n=2,n3dvars
IF ( var_lev3d(k,1,1) /= var_lev3d(k,n,1) ) THEN
WRITE (6,'(a)') &
'Variables were not at the same level.', &
'Program stopped in GETNMCRUC.'
WRITE(6,*) &
'var_lev3d(k,1,1) = ',var_lev3d(k,1,1), &
'var_lev3d(k,n,1) = ',var_lev3d(k,n,1)
! STOP
ISTATUS = -888
GOTO 999
END IF
END DO
END DO
IF ( iproj_grb == 5 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 1
ELSE IF ( iproj_grb == 5 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -1
ELSE IF ( iproj_grb == 3 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 2
ELSE IF ( iproj_grb == 3 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -2
ELSE IF ( iproj_grb == 1 ) THEN
iproj_ext = 3
ELSE IF ( iproj_grb == 0 ) THEN
iproj_ext = 4
ELSE
WRITE (6,'(a)') &
'Unknown map projection. Set to non-projection.'
iproj_ext = 0
END IF
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
dx_ext = di_grb
dy_ext = dj_grb
CALL getmapr(iproj,scale,latnot,trlon,x0,y0)
CALL setmapr(iproj_ext,scale_ext,latnot_ext,trlon_ext)
CALL lltoxy(1,1,latsw,lonsw,x0_ext,y0_ext)
DO i=1,nx_ext
x_ext(i)=x0_ext+(i-1)*dx_ext
END DO
DO j=1,ny_ext
y_ext(j)=y0_ext+(j-1)*dy_ext
END DO
CALL xytoll(nx_ext,ny_ext,x_ext,y_ext,lat_ext,lon_ext)
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
DO j=1,ny_ext
DO i=1,nx_ext
tsfc_ext(i,j) = -999.0
trn_ext(i,j) = -999.0
IF ( var_nr3d(1,2) == 0 ) THEN
tsfc_ext (i,j) = -999.0
tdeep_ext (i,j) = -999.0
wetsfc_ext (i,j) = -999.0
wetdp_ext (i,j) = -999.0
wetcanp_ext(i,j) = -999.0
ELSE
! tsfc_ext (i,j) = var_grb3d(i,j,1,1,2)
tsfc_ext (i,j) = var_grb2d(i,j,3,1)
tdeep_ext (i,j) = 0.1 * var_grb3d(i,j,1,1,2) & ! 5cm
+ 0.2 * var_grb3d(i,j,2,1,2) & ! 20cm
+ 0.4 * var_grb3d(i,j,3,1,2) & ! 40cm
+ 0.3 * var_grb3d(i,j,4,1,2) ! 160cm
! wetsfc_ext (i,j) = var_grb3d(i,j,1,2,2)
wetsfc_ext (i,j) = var_grb2d(i,j,4,1)
wetdp_ext (i,j) = 0.1 * var_grb3d(i,j,1,2,2) & ! 5cm
+ 0.2 * var_grb3d(i,j,2,2,2) & ! 20cm
+ 0.4 * var_grb3d(i,j,3,2,2) & ! 40cm
+ 0.3 * var_grb3d(i,j,4,2,2) ! 160cm
wetcanp_ext(i,j) = var_grb2d(i,j,1,1)*1.e-3 ! in meters
END IF
psfc_ext (i,j) = -999.0
IF ( var_nr2d(2,1) == 0 ) THEN
snowdpth_ext(i,j) = -999
ELSE
snowdpth_ext(i,j) = var_grb2d(i,j,2,1) ! in meters
END IF
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
cpd_p = 1004.686 ! cp in RUC
rovcp_p = 0.285714 ! rd/cp used in RUC
g0_p = 9.80665 ! gravity in RUC
nz1 = MIN(var_nr3d(1,1),nz_ext)
IF ( var_lev3d(1,1,1) < var_lev3d(nz1,1,1) ) THEN ! 1st level at sfc
chklev = 1
lvscan = 0
ELSE
chklev = -1
lvscan = nz1+1
END IF
DO k=1,nz1
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
p_ext(i,j,kk) = var_grb3d(i,j,k,1,1) ! Pressure (Pa)
hgt_ext(i,j,kk) = var_grb3d(i,j,k,2,1) ! Height (m)
u_ext(i,j,kk) = var_grb3d(i,j,k,5,1) ! u wind (m/s)
v_ext(i,j,kk) = var_grb3d(i,j,k,6,1) ! v wind (m/s)
a = REAL(100000)/var_grb3d(i,j,k,1,1)
a = a**rovcp_p
tvc_ext = var_grb3d(i,j,k,3,1)/a ! Virtual Temperature
b = 0.61*var_grb3d(i,j,k,4,1)
b = REAL(1) + b
t_ext(i,j,kk) = tvc_ext/b ! Temperature (K)
a = var_grb3d(i,j,k,4,1)*var_grb3d(i,j,k,1,1)
a = a/(0.622 - var_grb3d(i,j,k,4,1))
qv_ext(i,j,kk) = a*0.622/var_grb3d(i,j,k,1,1) ! SpecificHumidity
!
!-----------------------------------------------------------------------
!
! Retrieve hydrometeor data.
!
!-----------------------------------------------------------------------
!
IF (var_nr3d(7,1) == 0) THEN
qc_ext(i,j,kk) = -999.
ELSE
qc_ext(i,j,kk) = var_grb3d(i,j,k,7,1)
END IF
IF (var_nr3d(8,1) == 0) THEN
qr_ext(i,j,kk) = -999.
ELSE
qr_ext(i,j,kk) = var_grb3d(i,j,k,8,1)
END IF
IF (var_nr3d(9,1) == 0) THEN
qi_ext(i,j,kk) = -999.
ELSE
qi_ext(i,j,kk) = var_grb3d(i,j,k,9,1)
END IF
IF (var_nr3d(10,1) == 0) THEN
qs_ext(i,j,kk) = -999.
ELSE
qs_ext(i,j,kk) = var_grb3d(i,j,k,10,1)
END IF
IF (var_nr3d(11,1) == 0) THEN
qh_ext(i,j,kk) = -999.
ELSE
qh_ext(i,j,kk) = var_grb3d(i,j,k,11,1)
END IF
END DO
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Rotate winds to be relative to true north.
! The RUC data are sent as grid-relative.
!
!-----------------------------------------------------------------------
!
DO k=1,nz1
CALL uvmptoe(nx_ext,ny_ext,u_ext(1,1,k),v_ext(1,1,k), &
lon_ext,utmp,vtmp)
u_ext(:,:,k) = utmp(:,:)
v_ext(:,:,k) = vtmp(:,:)
END DO
istatus = 1
!
!-----------------------------------------------------------------------
!
! Reset map projection to previous values
!
!-----------------------------------------------------------------------
!
999 CONTINUE
CALL setmapr(iproj,scale,latnot,trlon)
CALL setorig(1,x0,y0)
DEALLOCATE(var_grb2d,var_grb3d,rcdata,var_lev3d)
DEALLOCATE(utmp)
DEALLOCATE(vtmp)
RETURN
END SUBROUTINE getnmcrucn236
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETNMCRUCP236 ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE getnmcrucp236(nx_ext,ny_ext,nz_ext, & 1,12
dir_extd,extdname,extdopt,extdfmt, &
extdinit,extdfcst,julfname, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsfc_ext,tdeep_ext,wetsfc_ext,wetdp_ext,wetcanp_ext, &
trn_ext,psfc_ext, t_2m_ext, rh_2m_ext, &
u_10m_ext, v_10m_ext, snowdpth_ext, &
istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Reads in a GRIB file containing isobaric RUC2 data (Grid 236)
! and extracts/converts selected variables for use by EXT2ARPS.
!
!-----------------------------------------------------------------------
!
! AUTHOR: Eric Kemp
! 09/17/1999
! Based on subroutine GETNMCRUC211.
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdopt Option of external data sources
! extdfmt Option of external data format
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format
! julfname File name in yyjjjhhmm format
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsfc_ext Surface temperature
! tdeep_ext Soil temperature
! wetsfc_ext Top layer soil moisture (fraction)
! wetdp_ext Deep soil moisture (fraction)
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! T_2m_ext Temperature at 2m AGL
! rh_2m_ext Specific Humidity at 2m AGL
! U_10m_ext U at 10m AGL
! V_10m_ext V at 10m AGL
!
! snowdpth_ext Snow depth (m)
!
! istatus status indicator
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INCLUDE 'gribcst.inc'
CHARACTER (LEN=*) :: dir_extd
CHARACTER (LEN=*) :: extdname
INTEGER :: extdopt
INTEGER :: extdfmt
CHARACTER (LEN=19) :: extdinit
CHARACTER (LEN=9) :: extdfcst
CHARACTER (LEN=9) :: julfname
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj_ext
REAL :: scale_ext,trlon_ext
REAL :: latnot_ext(2)
REAL :: x0_ext,y0_ext
REAL :: dx_ext,dy_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
INTEGER :: nx_ext,ny_ext,nz_ext
REAL :: lat_ext(nx_ext,ny_ext)
REAL :: lon_ext(nx_ext,ny_ext)
REAL :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio
! (kg/kg)
REAL :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio
! (kg/kg)
REAL :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL :: tsfc_ext (nx_ext,ny_ext) ! Temperature at surface (K)
REAL :: tdeep_ext (nx_ext,ny_ext) ! Deep soil temperature (K)
REAL :: wetsfc_ext (nx_ext,ny_ext) ! Surface soil moisture (fraction)
REAL :: wetdp_ext (nx_ext,ny_ext) ! Deep soil moisture (fraction)
REAL :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL :: trn_ext (nx_ext,ny_ext) ! Geometrical heights
REAL :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
REAL :: t_2m_ext (nx_ext,ny_ext)
REAL :: rh_2m_ext(nx_ext,ny_ext)
REAL :: u_10m_ext(nx_ext,ny_ext)
REAL :: v_10m_ext(nx_ext,ny_ext)
REAL :: snowdpth_ext(nx_ext,ny_ext) ! Snow depth (m)
!
!----------------------------------------------------------------------
!
! Other external variable arrays
!
!----------------------------------------------------------------------
!
REAL :: x_ext(nx_ext)
REAL :: y_ext(ny_ext)
REAL :: z_ext(nz_ext)
INTEGER :: istatus
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:,:) ! GRIB variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:,:) ! GRIB 3-D variables
INTEGER, ALLOCATABLE :: var_lev3d(:,:,:) ! Levels (hybrid) for
! each 3-D variable
REAL, ALLOCATABLE :: rcdata(:) ! temporary data array
!
!-----------------------------------------------------------------------
!
! Original grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj
REAL :: scale,trlon,x0,y0
REAL :: latnot(2)
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=256) :: gribfile
CHARACTER (LEN=13) :: gribtime
CHARACTER (LEN=10) :: runstr
CHARACTER (LEN=3) :: fmtn
INTEGER :: ichr,bchar,echar
INTEGER :: i,j,k,ldir,ireturn
INTEGER :: iyr,imo,iday,myr, jldy
INTEGER :: ihr,imin,isec
INTEGER :: ifhr,ifmin,ifsec
INTEGER :: grbflen, len1, lenrun
INTEGER :: m,n,nz1,max_nr2d,max_nr3d
REAL :: qvsat, pilev, qvsatice
REAL :: tema, temb
INTEGER :: chklev, lvscan, kk, jj
INTEGER :: iret ! Return flag
REAL, ALLOCATABLE :: utmp(:,:), vtmp(:,:)
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
!
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=42) :: gridesc ! Grid description
INTEGER :: iproj_grb ! Map projection indicator
INTEGER :: gthin ! Indicator of whether the grid is "thinned"
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
INTEGER :: np_grb ! Total number of horizontal grid points
INTEGER :: nk_grb ! Number of vertical parameters
REAL :: zk_grb(nz_ext) ! Vertical coordinate parameters
INTEGER :: npeq ! Number of lat circles from pole to equator
INTEGER :: nit(nz_ext) ! Number of x-points for thinned grid
REAL :: pi_grb ! x-coordinate of pole point
REAL :: pj_grb ! y-coordinate of pole point
INTEGER :: ipole ! Projection center flag
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: lrb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
REAL :: latne ! Latitude of North East corner point
REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
REAL :: latrot ! Latitude of southern pole of rotation
REAL :: lonrot ! Longitude of southern pole of rotation
REAL :: angrot ! Angle of rotation
REAL :: latstr ! Latitude of the pole of stretching
REAL :: lonstr ! Longitude of the pole of stretching
REAL :: facstr ! Stretching factor
INTEGER :: scanmode ! Scanning indicator
INTEGER :: iscan ! x-direction scanning indicator
INTEGER :: jscan ! y-direction scanning indicator
INTEGER :: kscan ! FORTRAN index scanning indicator
INTEGER :: ires ! Resolution direction increments indicator
INTEGER :: iearth ! Earth shape indicator: spherical or oblate?
INTEGER :: icomp ! (u,v) components decomposition indicator
INTEGER :: jpenta ! J-Pentagonal resolution parameter
INTEGER :: kpenta ! K-Pentagonal resolution parameter
INTEGER :: mpenta ! M-Pentagonal resolution parameter
INTEGER :: ispect ! Spectral representation type
INTEGER :: icoeff ! Spectral coefficient storage mode
REAL :: xp_grb ! X coordinate of sub-satellite point
REAL :: yp_grb ! Y coordinate of sub-satellite point
REAL :: xo_grb ! X coordinate of image sector origin
REAL :: yo_grb ! Y coordinate of image sector origin
REAL :: zo_grb ! Camera altitude from center of Earth
!
!
!-----------------------------------------------------------------------
!
! Function f_qvsatl and inline directive for Cray PVP
!
!-----------------------------------------------------------------------
!
REAL :: f_qvsatl
!fpp$ expand (f_desdt)
!fpp$ expand (f_qvsatl)
!!dir$ inline always f_desdt, f_qvsatl
!*$* inline routine (f_desdt, f_qvsatl)
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
ALLOCATE(var_grb2d(nx_ext,ny_ext,n2dvs,n2dlvt))
ALLOCATE(var_grb3d(nx_ext,ny_ext,nz_ext,n3dvs,n3dlvt))
ALLOCATE(rcdata(nx_ext*ny_ext))
ALLOCATE(var_lev3d(nz_ext,n3dvs,n3dlvt))
ALLOCATE(utmp(nx_ext,ny_ext))
ALLOCATE(vtmp(nx_ext,ny_ext))
IF ( extdfcst == ' ') extdfcst='000:00:00'
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
CALL julday(iyr,imo,iday,jldy)
myr=MOD(iyr,100)
ifhr=0
ifmin=0
ifsec=0
READ (extdfcst,'(i3)',ERR=4,END=4) ifhr
4 CONTINUE
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i2.2)') &
iyr,imo,iday,ihr,'f',ifhr
len1=LEN(dir_extd)
grbflen=len1
CALL strlnth( dir_extd, grbflen )
IF( grbflen == 0 .OR. dir_extd(1:grbflen) == ' ' ) THEN
dir_extd = '.'
grbflen=1
END IF
IF( dir_extd(grbflen:grbflen) /= '/'.AND.grbflen < len1 ) THEN
grbflen=grbflen+1
dir_extd(grbflen:grbflen)='/'
END IF
lenrun = LEN( extdname )
CALL strlnth( extdname, lenrun )
gribfile = &
dir_extd(1:grbflen)//extdname(1:lenrun)//'.'//gribtime(1:13)
grbflen = grbflen + lenrun + 14
!
!-----------------------------------------------------------------------
!
! RDNMCGRB reads NMC GRIB data
!
!-----------------------------------------------------------------------
!
gridtyp = rucp236grid
mproj_grb = rucp236proj
n2dvars = rucp236nvs2d
n2dlvtps = rucp236nlvt2d
DO k=1,n2dlvtps
DO n=1,n2dvars
var_id2d(n,k) = rucp236var_id2d(n,k)
END DO
levtyp2d(k) = rucp236levs2d(k)
END DO
n3dvars = rucp236nvs3d
n3dlvtps = rucp236nlvt3d
DO m=1,n3dlvtps
DO n=1,n3dvars
var_id3d(n,m) = rucp236var_id3d(n,m)
END DO
levtyp3d(m) = rucp236levs3d(m)
END DO
CALL rdnmcgrb(nx_ext,ny_ext,nz_ext,gribfile,grbflen, gribtime, &
gridesc, iproj_grb, gthin, &
ni_grb,nj_grb,np_grb, nk_grb,zk_grb, npeq,nit, &
pi_grb,pj_grb,ipole, di_grb,dj_grb, &
latsw,lonsw, latne,lonne, &
latrot,lonrot,angrot, &
latstr,lonstr,facstr, &
lattru1,lattru2,lontrue, &
scanmode, iscan,jscan,kscan, &
ires,iearth,icomp, &
jpenta,kpenta,mpenta,ispect,icoeff, &
xp_grb,yp_grb, xo_grb,yo_grb,zo_grb, &
rcdata,var_grb2d,var_grb3d,var_lev3d,lvldbg,iret)
IF (iret /= 0) THEN
ISTATUS = -888
GOTO 999
END IF
max_nr2d = 0
DO n=1,n2dvars
DO m=1,n2dlvtps
max_nr2d = MAX( max_nr2d, var_nr2d(n,m) )
END DO
END DO
max_nr3d = 0
DO n=1,n3dvars
max_nr3d = MAX( max_nr3d, var_nr3d(n,1))
END DO
IF ( max_nr3d == 0 ) THEN
WRITE (6,'(a)') &
'No 3-D variables was found in the GRIB file', &
'Program stopped in GETNMCRUCP236.'
! STOP
ISTATUS = -888
GOTO 999
END IF
IF ( max_nr2d == 0 ) THEN
WRITE (6,'(a)') &
'No 2-D variables was found in the GRIB file'
END IF
! WRITE (6,'(/a7,2x,6(i7))') 'Lev\VID',(var_id3d(n,1),n=1,n3dvars)
! DO k=1,max_nr3d
! WRITE (6,'(i5,4x,6(i7))') k,(var_lev3d(k,n,1),n=1,n3dvars)
! END DO
DO k=1,max_nr3d
DO n=2,n3dvars
IF ( var_lev3d(k,1,1) /= var_lev3d(k,n,1) ) THEN
WRITE (6,'(a)') &
'Variables were not at the same level.', &
'Program stopped in GETNMCRUCP236.'
! STOP
ISTATUS = -888
GOTO 999
END IF
END DO
END DO
IF ( iproj_grb == 5 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 1
ELSE IF ( iproj_grb == 5 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -1
ELSE IF ( iproj_grb == 3 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 2
ELSE IF ( iproj_grb == 3 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -2
ELSE IF ( iproj_grb == 1 ) THEN
iproj_ext = 3
ELSE IF ( iproj_grb == 0 ) THEN
iproj_ext = 4
ELSE
WRITE (6,'(a)') &
'Unknown map projection. Set to non-projection.'
iproj_ext = 0
END IF
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
dx_ext = di_grb
dy_ext = dj_grb
CALL getmapr(iproj,scale,latnot,trlon,x0,y0)
CALL setmapr(iproj_ext,scale_ext,latnot_ext,trlon_ext)
CALL lltoxy(1,1,latsw,lonsw,x0_ext,y0_ext)
DO i=1,nx_ext
x_ext(i)=x0_ext+(i-1)*dx_ext
END DO
DO j=1,ny_ext
y_ext(j)=y0_ext+(j-1)*dy_ext
END DO
CALL xytoll(nx_ext,ny_ext,x_ext,y_ext,lat_ext,lon_ext)
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
DO j=1,ny_ext
DO i=1,nx_ext
IF ( var_nr2d(1,1) == 0 ) THEN
psfc_ext (i,j) = -999.0
ELSE
psfc_ext (i,j) = var_grb2d(i,j,1,1)
END IF
IF ( var_nr2d(2,1) == 0 ) THEN
trn_ext (i,j) = -999.0
ELSE
trn_ext (i,j) = var_grb2d(i,j,2,1)
END IF
IF( var_nr2d(1,2) == 0 ) THEN
t_2m_ext(i,j)= -999.0
ELSE
t_2m_ext(i,j)= var_grb2d(i,j,1,2)
END IF
! at this point we are reading in the relative humidity
! later we'll convert to specific humidity
IF( var_nr2d(2,2) == 0 ) THEN
rh_2m_ext(i,j)= -999.0
ELSE
rh_2m_ext(i,j)= var_grb2d(i,j,2,2)
END IF
IF( var_nr2d(3,2) == 0 ) THEN
u_10m_ext(i,j)= -999.0
ELSE
u_10m_ext(i,j)= var_grb2d(i,j,3,2)
END IF
IF( var_nr2d(4,2) == 0 ) THEN
v_10m_ext(i,j)= -999.0
ELSE
v_10m_ext(i,j)= var_grb2d(i,j,4,2)
END IF
tsfc_ext (i,j) = -999.0
tdeep_ext (i,j) = -999.0
wetsfc_ext (i,j) = -999.0
wetdp_ext (i,j) = -999.0
wetcanp_ext(i,j) = -999.0
IF ( var_nr2d(3,1) == 0 ) THEN
snowdpth_ext(i,j) = -999
ELSE
snowdpth_ext(i,j) = var_grb2d(i,j,3,1) ! in meters
END IF
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
nz1 = MIN(var_nr3d(1,1),nz_ext)
IF ( var_lev3d(1,1,1) > var_lev3d(nz1,1,1) ) THEN ! 1st level at
!sfc
chklev = 1
lvscan = 0
ELSE
chklev = -1
lvscan = nz1+1
END IF
DO k=1,nz1
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
p_ext(i,j,kk) = 100.0 * FLOAT(var_lev3d(k,1,1)) ! Pressure
t_ext(i,j,kk) = var_grb3d(i,j,k,2,1) ! Temperature (K)
u_ext(i,j,kk) = var_grb3d(i,j,k,4,1) ! u wind (m/s)
v_ext(i,j,kk) = var_grb3d(i,j,k,5,1) ! v wind (m/s)
hgt_ext(i,j,kk) = var_grb3d(i,j,k,1,1) ! height (m)
! check for portions of constant pressure grids that are below the
! surface
!
! IF(((kk == 1) .OR. (p_ext(i,j,kk) > psfc_ext(i,j))) .AND. &
! (psfc_ext(i,j) > 0.) ) THEN
! p_ext(i,j,kk)= psfc_ext(i,j) - 1. * (kk - 1)
! t_ext(i,j,kk)= t_2m_ext(i,j)
! u_ext(i,j,kk)= u_10m_ext(i,j)
! v_ext(i,j,kk)= v_10m_ext(i,j)
! hgt_ext(i,j,kk)= trn_ext(i,j) + 0.1 * (kk - 1)
! END IF
IF( (p_ext(i,j,kk) > 0.0) .AND. (t_ext(i,j,kk) > 0.0) ) THEN
qvsat = f_qvsatl( p_ext(i,j,kk), t_ext(i,j,kk) )
qv_ext(i,j,kk)= var_grb3d(i,j,k,3,1) * qvsat * 0.01
IF((kk == 1) .OR. (p_ext(i,j,kk) > psfc_ext(i,j)))THEN
qv_ext(i,j,kk)= rh_2m_ext(i,j) * qvsat * 0.01
END IF
qc_ext(i,j,kk)= 0.0
qi_ext(i,j,kk)= 0.0
ELSE
qv_ext(i,j,kk)= 0.0
qi_ext(i,j,kk)= 0.0
qc_ext(i,j,kk)= 0.0
END IF
qr_ext (i,j,kk) = -999.
qs_ext (i,j,kk) = -999.
qh_ext (i,j,kk) = -999.
END DO
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Rotate winds to be relative to true north.
! The RUCawips data are sent as grid-relative.
!
!-----------------------------------------------------------------------
!
DO k=1,nz1
CALL uvmptoe(nx_ext,ny_ext,u_ext(1,1,k),v_ext(1,1,k), &
lon_ext,utmp,vtmp)
u_ext(:,:,k) = utmp(:,:)
v_ext(:,:,k) = vtmp(:,:)
END DO
istatus = 1
!
!-----------------------------------------------------------------------
!
! Reset map projection to previous values
!
!-----------------------------------------------------------------------
!
999 CONTINUE
CALL setmapr(iproj,scale,latnot,trlon)
CALL setorig(1,x0,y0)
DEALLOCATE(var_grb2d,var_grb3d,rcdata,var_lev3d)
DEALLOCATE(utmp)
DEALLOCATE(vtmp)
RETURN
END SUBROUTINE getnmcrucp236
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETNCEPAVN3 ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
SUBROUTINE getncepavn3(nx_ext,ny_ext,nz_ext,nzsoil_ext, & 2,8
dir_extd,extdname,extdopt,nofixdim,lon_0_360, &
extdinit,extdfcst,julfname, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext,zpsoil_ext, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext,soiltyp_ext, &
t_2m_ext, qv_2m_ext, u_10m_ext, v_10m_ext, &
istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Reads a NCEP AVN GRIB (Grid #3, 1x1 degree) data file for
! processing by ext2arps.
!
!-----------------------------------------------------------------------
!
! AUTHOR: Donghai Wang and Yuhe Liu
! 05/19/1999
!
! MODIFICATION HISTORY:
!
! 03/23/2000 (Donghai Wang)
! Fixed some bugs and modified the code for ARPS4.5.1 version.
!
! 2004/01/15 (F. KONG)
! Modified to read in from grid 3 four more near surface variables:
! 2-m temperature and humidity, and 10-m wind (u, v)
!
! 08/11/2005 (Y. Wang)
! Modified to handle cases with Greenwich Meridian in the domain. Note
! that a new parameter, lon_0_360 was passed in and an integer array
! ii(nx_ext) was decalared.
!
! Modified to work with data over subregion instead of global data. A
! new parameter nofixdim was passed in.
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdopt Option of external data sources
! extdfmt Option of external data format
!
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format
! julfname File name in yyjjjhhmm format
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsoil_ext Soil temperature
! qsoil_ext Soil moisture
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! T_2m_ext Temperature at 2m AGL
! qv_2m_ext Specific Humidity at 2m AGL
! U_10m_ext U at 10m AGL
! V_10m_ext V at 10m AGL
!
! istatus status indicator
!
! WORK ARRAYS:
!
! var_grb3d Arrays to store the GRIB 3-D variables:
! var_grb3d(nxgrb,nygrb,nzgrb,1,1) - Temperature (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,1) - Specific humidity
! (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,3,1) - u wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,4,1) - v wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,5,1) - Geopotential
! height (gpm)
! var_grb3d(nxgrb,nygrb,nzgrb,6,1) - Pressure vertical
! velocity (Pa/s)
! (if applied)
! var_grb3d(nxgrb,nygrb,nzgrb,1,2) - soil temp. (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,2) - vol. soil moist.
! (m**3/m**3)
!
! var_grb2d Arrays to store the GRIB 2-D variables:
! var_grb2d(nxgrb,nygrb,1) - Surface pressure (Pa)
! var_grb2d(nxgrb,nygrb,2) - Geopotential height (gpm)
! var_grb2d(nxgrb,nygrb,3) - Surface temperature (K)
! var_grb2d(nxgrb,nygrb,4) - Plant canopy surface
! water (kg/m**2)
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INCLUDE 'gribcst.inc'
CHARACTER (LEN=*) :: dir_extd
CHARACTER (LEN=*) :: extdname
INTEGER, INTENT(IN) :: extdopt
INTEGER, INTENT(IN) :: nofixdim
LOGICAL, INTENT(IN) :: lon_0_360
CHARACTER (LEN=19) :: extdinit
CHARACTER (LEN=9) :: extdfcst
CHARACTER (LEN=9) :: julfname
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj_ext
REAL :: scale_ext,trlon_ext
REAL :: latnot_ext(2)
REAL :: x0_ext,y0_ext
REAL :: dx_ext,dy_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
INTEGER :: nx_ext,ny_ext,nz_ext,nzsoil_ext
REAL :: lat_ext(nx_ext,ny_ext)
REAL :: lon_ext(nx_ext,ny_ext)
REAL :: zpsoil_ext(nx_ext,ny_ext,nzsoil_ext)
REAL :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL :: tsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Temperature at surface (K)
REAL :: qsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Deep soil temperature (K)
REAL :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL :: snowdpth_ext(nx_ext,ny_ext) ! Snow depth (m)
REAL :: trn_ext (nx_ext,ny_ext) ! External terrain (m)
REAL :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
REAL :: t_2m_ext (nx_ext,ny_ext)
REAL :: qv_2m_ext(nx_ext,ny_ext)
REAL :: u_10m_ext(nx_ext,ny_ext)
REAL :: v_10m_ext(nx_ext,ny_ext)
INTEGER :: soiltyp_ext(nx_ext,ny_ext)
!
!-----------------------------------------------------------------------
!
! Other external variable arrays
!
!-----------------------------------------------------------------------
!
! REAL :: x_ext(nx_ext)
! REAL :: y_ext(ny_ext)
INTEGER :: ii(nx_ext)
INTEGER :: istatus
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:,:) ! GRIB variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:,:) ! GRIB 3-D variables
INTEGER, ALLOCATABLE :: var_lev3d(:,:,:) ! Levels (hybrid) for
! each 3-D variable
REAL, ALLOCATABLE :: rcdata(:) ! temporary data array
!
!-----------------------------------------------------------------------
!
! Original grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj
REAL :: scale,trlon,x0,y0
REAL :: latnot(2)
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=256) :: gribfile
CHARACTER (LEN=14) :: gribtime
INTEGER :: i,j,k,kk
INTEGER :: iyr,imo,iday,myr, jldy
INTEGER :: ihr,imin,isec
INTEGER :: ifhr,ifmin,ifsec
INTEGER :: grbflen, len1, lenrun
INTEGER :: m,n,nz1,max_nr2d,max_nr3d,min_nr3d,nz2
REAL :: govrd
INTEGER :: chklev, lvscan
INTEGER :: iret ! Return flag
REAL, PARAMETER :: soildepth_ext(3) = (/0.0, 0.05, 1.05/)
! Surface and two soil layers 0-10cm & 10-200cm
REAL :: rtmp
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=42) :: gridesc ! Grid description
INTEGER :: iproj_grb ! Map projection indicator
INTEGER :: gthin ! Indicator of whether the grid is "thinned"
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
INTEGER :: np_grb ! Total number of horizontal grid points
INTEGER :: nk_grb ! Number of vertical parameters
REAL :: zk_grb(nz_ext) ! Vertical coordinate parameters
INTEGER :: npeq ! Number of lat circles from pole to equator
INTEGER :: nit(nz_ext) ! Number of x-points for thinned grid
REAL :: pi_grb ! x-coordinate of pole point
REAL :: pj_grb ! y-coordinate of pole point
INTEGER :: ipole ! Projection center flag
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
REAL :: latne ! Latitude of North East corner point
REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
REAL :: latrot ! Latitude of southern pole of rotation
REAL :: lonrot ! Longitude of southern pole of rotation
REAL :: angrot ! Angle of rotation
REAL :: latstr ! Latitude of the pole of stretching
REAL :: lonstr ! Longitude of the pole of stretching
REAL :: facstr ! Stretching factor
INTEGER :: scanmode ! Scanning indicator
INTEGER :: iscan ! x-direction scanning indicator
INTEGER :: jscan ! y-direction scanning indicator
INTEGER :: kscan ! FORTRAN index scanning indicator
INTEGER :: ires ! Resolution direction increments indicator
INTEGER :: iearth ! Earth shape indicator: spherical or oblate?
INTEGER :: icomp ! (u,v) components decomposition indicator
INTEGER :: jpenta ! J-Pentagonal resolution parameter
INTEGER :: kpenta ! K-Pentagonal resolution parameter
INTEGER :: mpenta ! M-Pentagonal resolution parameter
INTEGER :: ispect ! Spectral representation type
INTEGER :: icoeff ! Spectral coefficient storage mode
REAL :: xp_grb ! X coordinate of sub-satellite point
REAL :: yp_grb ! Y coordinate of sub-satellite point
REAL :: xo_grb ! X coordinate of image sector origin
REAL :: yo_grb ! Y coordinate of image sector origin
REAL :: zo_grb ! Camera altitude from center of Earth
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
x0_ext = 0.0
y0_ext = 0.0
!---------------------------------------------------------------------
!
! Define soil depths
!
!---------------------------------------------------------------------
IF(soilmodel_option == 1 .AND. nzsoil_ext /= 2) THEN
WRITE(6,'(2a,I3,a/2a,I2,a/,a,a)') &
'NCEP GFS grid #3 only provides 2 soil layers, However,',&
' You are trying to extract ',nzsoil_ext, ' layers.', &
' for ARPS two-layer force-restore model ', &
'(soilmodel_option = ',soilmodel_option,')', &
' Please check the code ext2arps.f90 for NCEPAVN3 grid.',&
' Terminating ...'
! STOP
CALL arpsstop("NCEPAVN3 problem",1)
ELSE IF( soilmodel_option == 2 .AND. nzsoil_ext /= 3) THEN
WRITE(6,'(2a,I3,a/2a,I2,a/,a,a)') &
'NCEP GFS grid #3 only provides 2 soil layers, However,',&
' You are trying to extract ',nzsoil_ext, ' layers.', &
' for ARPS multi-layer OUSoil model ', &
'(soilmodel_option = ',soilmodel_option,')', &
' Please check the code ext2arps.f90 for NCEPAVN3 grid.',&
' Terminating ...'
! STOP
CALL arpsstop("NCEPAVN3 problem",1)
END IF
IF(soilmodel_option == 1) THEN
DO k=1,nzsoil_ext
DO j=1,ny_ext
DO i=1,nx_ext
zpsoil_ext(i,j,k) = soildepth_ext(k+1)
END DO
END DO
END DO
ELSE
DO k=1,nzsoil_ext
DO j=1,ny_ext
DO i=1,nx_ext
zpsoil_ext(i,j,k) = soildepth_ext(k)
END DO
END DO
END DO
END IF
ALLOCATE(var_grb2d(nx_ext,ny_ext,n2dvs,n2dlvt))
ALLOCATE(var_grb3d(nx_ext,ny_ext,nz_ext,n3dvs,n3dlvt))
ALLOCATE(rcdata(nx_ext*ny_ext))
ALLOCATE(var_lev3d(nz_ext,n3dvs,n3dlvt))
var_grb2d = 0.0
var_grb3d = 0.0
rcdata = 0.0
var_lev3d = 0.0
IF(extdfcst == ' ') extdfcst='000:00:00'
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
CALL julday(iyr,imo,iday,jldy)
myr=MOD(iyr,100)
ifhr=0
ifmin=0
ifsec=0
READ(extdfcst,'(i3)',ERR=4,END=4) ifhr
4 CONTINUE
!
! AVN/GFS exceeds 99 hours, so we must use a 3 digit naming scheme.
!
!WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i3.3)') &
! WDT 2003-12-23 Use 2 digits, not 3, for forecast hour RLC
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i2.2)') &
iyr,imo,iday,ihr,'f',ifhr
len1=LEN(dir_extd)
grbflen=len1
CALL strlnth( dir_extd, grbflen )
IF( grbflen == 0 .OR. dir_extd(1:grbflen) == ' ' ) THEN
dir_extd = '.'
grbflen=1
END IF
IF( dir_extd(grbflen:grbflen) /= '/'.AND.grbflen < len1 ) THEN
grbflen=grbflen+1
dir_extd(grbflen:grbflen)='/'
END IF
lenrun = LEN( extdname )
CALL strlnth( extdname, lenrun )
gribfile = dir_extd(1:grbflen)//extdname(1:lenrun) &
//'.'//gribtime(1:14)
grbflen = grbflen + lenrun + 15
!
!-----------------------------------------------------------------------
!
! RDNMCGRB reads NMC GRIB data
!
!-----------------------------------------------------------------------
!
gridtyp = avn3grid
mproj_grb = avn3proj
IF (extdopt == 51 .OR. nofixdim == 1) THEN
WRITE(6,*) 'Special handling for extdopt ', extdopt
gridtyp = 255
END IF
n2dvars = avn3nvs2d
n2dlvtps = avn3nlvt2d
DO k=1,n2dlvtps
DO n=1,n2dvars
var_id2d(n,k) = avn3var_id2d(n,k)
END DO
levtyp2d(k) = avn3levs2d(k)
END DO
n3dvars = avn3nvs3d
n3dlvtps = avn3nlvt3d
DO m=1,n3dlvtps
DO n=1,n3dvars
var_id3d(n,m) = avn3var_id3d(n,m)
END DO
levtyp3d(m) = avn3levs3d(m)
END DO
CALL rdnmcgrb(nx_ext,ny_ext,nz_ext,gribfile,grbflen, gribtime, &
gridesc, iproj_grb, gthin, &
ni_grb,nj_grb,np_grb, nk_grb,zk_grb, npeq,nit, &
pi_grb,pj_grb,ipole, di_grb,dj_grb, &
latsw,lonsw, latne,lonne, &
latrot,lonrot,angrot, &
latstr,lonstr,facstr, &
lattru1,lattru2,lontrue, &
scanmode, iscan,jscan,kscan, &
ires,iearth,icomp, &
jpenta,kpenta,mpenta,ispect,icoeff, &
xp_grb,yp_grb, xo_grb,yo_grb,zo_grb, &
rcdata,var_grb2d,var_grb3d,var_lev3d,lvldbg,iret)
IF (iret /= 0) THEN
ISTATUS = -888
GOTO 999
END IF
max_nr2d = 0
DO n=1,n2dvars
DO m=1,n2dlvtps
max_nr2d = MAX( max_nr2d, var_nr2d(n,m) )
END DO
END DO
max_nr3d = 0
min_nr3d = nz_ext
DO n=1,n3dvars
max_nr3d = MAX( max_nr3d, var_nr3d(n,1) )
min_nr3d = MIN( min_nr3d, var_nr3d(n,1) )
END DO
IF ( max_nr3d == 0 ) THEN
WRITE (6,'(a)') &
'No 3-D variable was found in the GRIB file', &
'Program stopped in GETNCEPAVN3.'
! STOP
ISTATUS = -888
GOTO 999
END IF
IF ( max_nr2d == 0 ) THEN
WRITE (6,'(a)') &
'No 2-D variables was found in the GRIB file'
END IF
! WRITE (6,'(/a7,2x,6(i7))') &
! 'Lev\\VID',(var_id3d(n,1),n=1,n3dvars)
!
! DO k=1,max_nr3d
! var_lev3d(k,5,1) = var_lev3d(k,1,1)
! var_lev3d(k,6,1) = var_lev3d(k,1,1)
! WRITE (6,'(/i5,4x,6(i7))') k,(var_lev3d(k,n,1),n=1,n3dvars)
! END DO
DO k=1,min_nr3d
DO n=2,n3dvars
IF ( var_lev3d(k,1,1) /= var_lev3d(k,n,1) ) THEN
WRITE (6,'(a)') &
'Variables were not at the same level.', &
'Program stopped in GETNCEPAVN3.'
! STOP
ISTATUS = -888
GOTO 999
END IF
END DO
END DO
IF ( iproj_grb == 5 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 1
ELSE IF ( iproj_grb == 5 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -1
ELSE IF ( iproj_grb == 3 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 2
ELSE IF ( iproj_grb == 3 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -2
ELSE IF ( iproj_grb == 1 ) THEN
iproj_ext = 3
ELSE IF ( iproj_grb == 0 ) THEN
iproj_ext = 4
ELSE
WRITE (6,'(a)') &
'Unknown map projection. Set to non-projection.'
iproj_ext = 0
END IF
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
dx_ext = di_grb
dy_ext = dj_grb
DO j=1, ny_ext
DO i=1, nx_ext
lon_ext(i,j)= lonsw + (i-1) * dx_ext
lat_ext(i,j)= latsw + (j-1) * dy_ext
END DO
END DO
IF ( lon_0_360 ) THEN
DO i = 1,nx_ext
ii(i) = i
END DO
ELSE
IF (mod(nx_ext,2) /= 0) THEN
WRITE(6,'(a/)') 'Wrong size of nx_ext in GETNCEPAVN3 for lon_0_360.'
CALL arpsstop('Wrong nx_ext size.',1)
END IF
DO i = 1,nx_ext/2 ! map 1-180 to 181-360
ii(i) = i + nx_ext/2
END DO
DO i = nx_ext/2+1, nx_ext ! map 181-360 to 1-180
ii(i) = i - nx_ext/2
END DO
WHERE (lon_ext >= 180) lon_ext = lon_ext - 360
DO j = 1,ny_ext ! swap lat_ext & lon_ext
DO i = 1,nx_ext/2
rtmp = lat_ext(ii(i),j)
lat_ext(ii(i),j) = lat_ext(i,j)
lat_ext(i, j) = rtmp
rtmp = lon_ext(ii(i),j)
lon_ext(ii(i),j) = lon_ext(i,j)
lon_ext(i, j) = rtmp
END DO
END DO
END IF
PRINT *,'LatSW = ',latsw,' LonSW = ',lonsw
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
DO j=1,ny_ext
DO i=1,nx_ext
IF ( var_nr2d(1,1) == 0 ) THEN
psfc_ext (i,j) = -999.0
ELSE
!psfc_ext (i,j) = var_grb2d(i,j,1,1) * 100.0
psfc_ext (i,j) = var_grb2d(ii(i),j,1,1) ! already Pa (F.KONG)
END IF
IF ( var_nr2d(2,1) == 0 ) THEN
trn_ext (i,j) = -999.0
ELSE
!trn_ext (i,j) = var_grb2d(i,j,2,1)/g
trn_ext (i,j) = var_grb2d(ii(i),j,2,1) ! why divided by g? (F.KONG)
END IF
IF ( var_nr3d(1,2) == 0 ) THEN
tsoil_ext (i,j,:) = -999.0
qsoil_ext (i,j,:) = -999.0
ELSE
IF(soilmodel_option == 1) THEN ! ARPS: two-layer force-restore model)
tsoil_ext(i,j,1) = var_grb2d(ii(i),j,3,1) ! sfc temp.
IF ( nint(var_grb2d(ii(i),j,5,1)) == 1 ) THEN ! soil temp over land
tsoil_ext(i,j,2) = var_grb3d(ii(i),j,1,1,2)
IF ( tsoil_ext (i,j,2) <= 200. ) THEN
tsoil_ext(i,j,2) = tsoil_ext(i,j,1)
END IF
qsoil_ext(i,j,1) = var_grb3d(ii(i),j,2,2,2)
qsoil_ext(i,j,2) = var_grb3d(ii(i),j,1,2,2)
soiltyp_ext(i,j)= 0 ! We do not know the soil type
ELSE ! sfc temp over sea
tsoil_ext(i,j,2) = tsoil_ext(i,j,1)
qsoil_ext(i,j,:) = 1.0
soiltyp_ext(i,j) = 13 ! Water
END IF
ELSE ! ARPS: multi-layer OUSoil model
tsoil_ext(i,j,1) = var_grb2d(ii(i),j,3,1) ! sfc temp.
IF ( nint(var_grb2d(ii(i),j,5,1)) == 1 ) THEN ! soil temp over land
tsoil_ext(i,j,2) = var_grb3d(ii(i),j,2,1,2) ! 0 - 10 cm
tsoil_ext(i,j,3) = var_grb3d(ii(i),j,1,1,2) ! 10 - 200 cm
qsoil_ext(i,j,1) = var_grb3d(ii(i),j,2,2,2) ! 0 - 10 cm
! Value at surface assume equals
! the first layer below ground
qsoil_ext(i,j,2) = var_grb3d(ii(i),j,2,2,2) ! 0 - 10 cm
qsoil_ext(i,j,3) = var_grb3d(ii(i),j,1,2,2) ! 10 - 200 cm
soiltyp_ext(i,j)= 0 ! We do not know the soil type
ELSE ! sfc temp over sea
tsoil_ext(i,j,2:3) = tsoil_ext(i,j,1) ! over water, All soil layers = SST
qsoil_ext(i,j,1:3) = 1.0 ! All soil layers = 1.0
soiltyp_ext(i,j) = 13 ! Water
END IF
END IF ! soilmodel_option
END IF
IF ( var_nr2d(4,1) == 0 ) THEN
wetcanp_ext(i,j) = -999.0
ELSE
wetcanp_ext(i,j) = var_grb2d(ii(i),j,4,1)*1.e-3 ! in meter
END IF
IF ( var_nr2d(6,1) == 0 ) THEN
snowdpth_ext(i,j) = -999.
ELSE
! Convert water equiv. of accum. snow depth (kg/m**2) to meters
! (where 1 meter liquid water is set equivqlent to 10 meters snow).
! 0.01 = 10. (m snow/m liquid) / (1000 kg/m**3)
snowdpth_ext(i,j) = 0.01 * var_grb2d(ii(i),j,6,1) ! in meters
END IF
! F.KONG add
IF( var_nr2d(1,4) == 0 ) THEN
t_2m_ext(i,j)= -999.0
ELSE
t_2m_ext(i,j)= var_grb2d(ii(i),j,1,4)
END IF
IF( var_nr2d(2,4) == 0 ) THEN
qv_2m_ext(i,j)= -999.0
ELSE
qv_2m_ext(i,j)= var_grb2d(ii(i),j,2,4)
END IF
IF( var_nr2d(3,4) == 0 ) THEN
u_10m_ext(i,j)= -999.0
ELSE
u_10m_ext(i,j)= var_grb2d(ii(i),j,3,4)
END IF
IF( var_nr2d(4,4) == 0 ) THEN
v_10m_ext(i,j)= -999.0
ELSE
v_10m_ext(i,j)= var_grb2d(ii(i),j,4,4)
END IF
! end F.KONG mod
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
nz1 = MIN(var_nr3d(1,1),nz_ext)
IF ( var_lev3d(1,1,1) > var_lev3d(nz1,1,1) ) THEN ! 1st level at sfc
chklev = 1
lvscan = 0
ELSE
chklev = -1
lvscan = nz1+1
END IF
DO k=1,nz1
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
p_ext (i,j,kk) = 100.0 * FLOAT(var_lev3d(k,1,1)) ! Pressure
hgt_ext(i,j,kk) = var_grb3d(ii(i),j,k,1,1)
u_ext (i,j,kk) = var_grb3d(ii(i),j,k,2,1) ! u wind (m/s)
v_ext (i,j,kk) = var_grb3d(ii(i),j,k,3,1) ! v wind (m/s)
t_ext (i,j,kk) = var_grb3d(ii(i),j,k,4,1) ! Temperature (K)
qc_ext (i,j,kk) = var_grb3d(ii(i),j,k,7,1)
qr_ext (i,j,kk) = -999.
qi_ext (i,j,kk) = -999.
qs_ext (i,j,kk) = -999.
qh_ext (i,j,kk) = -999.
END DO
END DO
END DO
CALL getqvs(nx_ext,ny_ext,nz1, 1,nx_ext,1,ny_ext,1,nz1, &
p_ext, t_ext, qv_ext )
nz2 = MIN( nz1, min_nr3d )
DO k=1,nz2
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
qv_ext(i,j,kk) = 0.01*var_grb3d(ii(i),j,k,5,1)*qv_ext(i,j,kk)
END DO
END DO
END DO
IF ( nz2 < nz1 ) THEN
DO k=nz2+1,nz1
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
qv_ext(i,j,kk) = 0.0
var_lev3d(k,5,1) = var_lev3d(k,1,1)
END DO
END DO
END DO
END IF
istatus = 1
999 CONTINUE
DEALLOCATE(var_grb2d,var_grb3d,rcdata,var_lev3d)
RETURN
END SUBROUTINE getncepavn3
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETNCEPAVN2 ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
SUBROUTINE getncepavn2(nx_ext,ny_ext,nz_ext,nzsoil_ext, & 2,8
dir_extd,extdname,extdopt,extdfmt,lon_0_360, &
extdinit,extdfcst,julfname, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext,zpsoil_ext, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext,soiltyp_ext, &
istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Reads a NCEP GFS or NCAR/NCEP Reanalysis GRIB (Grid #2, 2.5 x 2.5 degree)
! data file for processing by ext2arps.
!
!-----------------------------------------------------------------------
!
! AUTHOR: Richard Carpenter
! 2003-07-03
!
! MODIFICATION HISTORY:
!
! 08/11/2005 (Y. Wang)
! Modified to handle cases with Greenwich Meridian in the domain. Note
! that a new parameter, lon_0_360 was passed in and an integer array
! ii(nx_ext) was decalared. Still not tested.
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdopt Option of external data sources
! extdfmt Option of external data format
!
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format
! julfname File name in yyjjjhhmm format
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsoil_ext Soil temperature
! qsoil_ext Soil moisture
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! istatus status indicator
!
! WORK ARRAYS:
!
! var_grb3d Arrays to store the GRIB 3-D variables:
! var_grb3d(nxgrb,nygrb,nzgrb,1,1) - Temperature (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,1) - Specific humidity
! (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,3,1) - u wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,4,1) - v wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,5,1) - Geopotential
! height (gpm)
! var_grb3d(nxgrb,nygrb,nzgrb,6,1) - Pressure vertical
! velocity (Pa/s)
! (if applied)
! var_grb3d(nxgrb,nygrb,nzgrb,1,2) - soil temp. (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,2) - vol. soil moist.
! (m**3/m**3)
!
! var_grb2d Arrays to store the GRIB 2-D variables:
! var_grb2d(nxgrb,nygrb,1) - Surface pressure (Pa)
! var_grb2d(nxgrb,nygrb,2) - Geopotential height (gpm)
! var_grb2d(nxgrb,nygrb,3) - Surface temperature (K)
! var_grb2d(nxgrb,nygrb,4) - Plant canopy surface
! water (kg/m**2)
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INCLUDE 'gribcst.inc'
CHARACTER (LEN=*) :: dir_extd
CHARACTER (LEN=*) :: extdname
INTEGER :: extdopt
INTEGER :: extdfmt
LOGICAL, INTENT(IN) :: lon_0_360
CHARACTER (LEN=19) :: extdinit
CHARACTER (LEN=9) :: extdfcst
CHARACTER (LEN=9) :: julfname
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj_ext
REAL :: scale_ext,trlon_ext
REAL :: latnot_ext(2)
REAL :: x0_ext,y0_ext
REAL :: dx_ext,dy_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
INTEGER :: nx_ext,ny_ext,nz_ext,nzsoil_ext
REAL :: lat_ext(nx_ext,ny_ext)
REAL :: lon_ext(nx_ext,ny_ext)
REAL :: zpsoil_ext(nx_ext,ny_ext,nzsoil_ext)
REAL :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL :: tsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Temperature at surface (K)
REAL :: qsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Deep soil temperature (K)
REAL :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL :: snowdpth_ext(nx_ext,ny_ext) ! Snow depth (m)
REAL :: trn_ext (nx_ext,ny_ext) ! External terrain (m)
REAL :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
INTEGER :: soiltyp_ext(nx_ext,ny_ext)
!
!-----------------------------------------------------------------------
!
! Other external variable arrays
!
!-----------------------------------------------------------------------
!
! REAL :: x_ext(nx_ext)
! REAL :: y_ext(ny_ext)
INTEGER :: ii(nx_ext)
INTEGER :: istatus
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:,:) ! GRIB variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:,:) ! GRIB 3-D variables
INTEGER, ALLOCATABLE :: var_lev3d(:,:,:) ! Levels (hybrid) for
! each 3-D variable
REAL, ALLOCATABLE :: rcdata(:) ! temporary data array
!
!-----------------------------------------------------------------------
!
! Original grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj
REAL :: scale,trlon,x0,y0
REAL :: latnot(2)
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=256) :: gribfile
CHARACTER (LEN=14) :: gribtime
INTEGER :: i,j,k,kk
INTEGER :: iyr,imo,iday,myr, jldy
INTEGER :: ihr,imin,isec
INTEGER :: ifhr,ifmin,ifsec
INTEGER :: grbflen, len1, lenrun
INTEGER :: m,n,nz1,max_nr2d,max_nr3d,min_nr3d,nz2
REAL :: govrd
INTEGER :: chklev, lvscan
INTEGER :: iret ! Return flag
REAL :: rtmp
REAL, PARAMETER :: soildepth_ext(3) = (/0.0, 0.05, 1.05/)
! Surface and two soil layers 0-10cm & 10-200cm
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=42) :: gridesc ! Grid description
INTEGER :: iproj_grb ! Map projection indicator
INTEGER :: gthin ! Indicator of whether the grid is "thinned"
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
INTEGER :: np_grb ! Total number of horizontal grid points
INTEGER :: nk_grb ! Number of vertical parameters
REAL :: zk_grb(nz_ext) ! Vertical coordinate parameters
INTEGER :: npeq ! Number of lat circles from pole to equator
INTEGER :: nit(nz_ext) ! Number of x-points for thinned grid
REAL :: pi_grb ! x-coordinate of pole point
REAL :: pj_grb ! y-coordinate of pole point
INTEGER :: ipole ! Projection center flag
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
REAL :: latne ! Latitude of North East corner point
REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
REAL :: latrot ! Latitude of southern pole of rotation
REAL :: lonrot ! Longitude of southern pole of rotation
REAL :: angrot ! Angle of rotation
REAL :: latstr ! Latitude of the pole of stretching
REAL :: lonstr ! Longitude of the pole of stretching
REAL :: facstr ! Stretching factor
INTEGER :: scanmode ! Scanning indicator
INTEGER :: iscan ! x-direction scanning indicator
INTEGER :: jscan ! y-direction scanning indicator
INTEGER :: kscan ! FORTRAN index scanning indicator
INTEGER :: ires ! Resolution direction increments indicator
INTEGER :: iearth ! Earth shape indicator: spherical or oblate?
INTEGER :: icomp ! (u,v) components decomposition indicator
INTEGER :: jpenta ! J-Pentagonal resolution parameter
INTEGER :: kpenta ! K-Pentagonal resolution parameter
INTEGER :: mpenta ! M-Pentagonal resolution parameter
INTEGER :: ispect ! Spectral representation type
INTEGER :: icoeff ! Spectral coefficient storage mode
REAL :: xp_grb ! X coordinate of sub-satellite point
REAL :: yp_grb ! Y coordinate of sub-satellite point
REAL :: xo_grb ! X coordinate of image sector origin
REAL :: yo_grb ! Y coordinate of image sector origin
REAL :: zo_grb ! Camera altitude from center of Earth
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
x0_ext = 0.0
y0_ext = 0.0
!---------------------------------------------------------------------
!
! Define soil depths
!
!---------------------------------------------------------------------
IF(soilmodel_option == 1 .AND. nzsoil_ext /= 2) THEN
WRITE(6,'(2a,I3,a/2a,I2,a/,a,a)') &
'NCEP GFS grid #2 only provides 2 soil layers, However,',&
' You are trying to extract ',nzsoil_ext, ' layers.', &
' for ARPS two-layer force-restore model ', &
'(soilmodel_option = ',soilmodel_option,')', &
' Please check the code ext2arps.f90 for NCEPAVN2 grid.',&
' Terminating ...'
! STOP
CALL arpsstop("NCEPAVN2 problem",1)
ELSE IF( soilmodel_option == 2 .AND. nzsoil_ext /= 3) THEN
WRITE(6,'(2a,I3,a/2a,I2,a/,a,a)') &
'NCEP GFS grid #2 only provides 2 soil layers, However,',&
' You are trying to extract ',nzsoil_ext, ' layers.', &
' for ARPS multi-layer OUSoil model ', &
'(soilmodel_option = ',soilmodel_option,')', &
' Please check the code ext2arps.f90 for NCEPAVN2 grid.',&
' Terminating ...'
! STOP
CALL arpsstop("NCEPAVN2 problem",1)
END IF
IF(soilmodel_option == 1) THEN
DO k=1,nzsoil_ext
DO j=1,ny_ext
DO i=1,nx_ext
zpsoil_ext(i,j,k) = soildepth_ext(k+1)
END DO
END DO
END DO
ELSE
DO k=1,nzsoil_ext
DO j=1,ny_ext
DO i=1,nx_ext
zpsoil_ext(i,j,k) = soildepth_ext(k)
END DO
END DO
END DO
END IF
ALLOCATE(var_grb2d(nx_ext,ny_ext,n2dvs,n2dlvt))
ALLOCATE(var_grb3d(nx_ext,ny_ext,nz_ext,n3dvs,n3dlvt))
ALLOCATE(rcdata(nx_ext*ny_ext))
ALLOCATE(var_lev3d(nz_ext,n3dvs,n3dlvt))
var_grb2d = 0.0
var_grb3d = 0.0
rcdata = 0.0
var_lev3d = 0.0
IF(extdfcst == ' ') extdfcst='000:00:00'
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
CALL julday(iyr,imo,iday,jldy)
myr=MOD(iyr,100)
ifhr=0
ifmin=0
ifsec=0
READ(extdfcst,'(i3)',ERR=4,END=4) ifhr
4 CONTINUE
!
! AVN/GFS exceeds 99 hours, so we must use a 3 digit naming scheme.
!
!WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i3.3)') &
! WDT 2003-12-23 Use 2 digits, not 3, for forecast hour RLC
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i2.2)') &
iyr,imo,iday,ihr,'f',ifhr
len1=LEN(dir_extd)
grbflen=len1
CALL strlnth( dir_extd, grbflen )
IF( grbflen == 0 .OR. dir_extd(1:grbflen) == ' ' ) THEN
dir_extd = '.'
grbflen=1
END IF
IF( dir_extd(grbflen:grbflen) /= '/'.AND.grbflen < len1 ) THEN
grbflen=grbflen+1
dir_extd(grbflen:grbflen)='/'
END IF
lenrun = LEN( extdname )
CALL strlnth( extdname, lenrun )
gribfile = dir_extd(1:grbflen)//extdname(1:lenrun) &
//'.'//gribtime(1:14)
grbflen = grbflen + lenrun + 15
!
!-----------------------------------------------------------------------
!
! RDNMCGRB reads NMC GRIB data
!
!-----------------------------------------------------------------------
!
gridtyp = avn2grid
mproj_grb = avn2proj
IF (extdopt == 51) THEN
WRITE(6,*) 'Special handling for extdopt ', extdopt
gridtyp = 255
END IF
n2dvars = avn2nvs2d
n2dlvtps = avn2nlvt2d
DO k=1,n2dlvtps
DO n=1,n2dvars
var_id2d(n,k) = avn2var_id2d(n,k)
END DO
levtyp2d(k) = avn2levs2d(k)
END DO
n3dvars = avn2nvs3d
n3dlvtps = avn2nlvt3d
DO m=1,n3dlvtps
DO n=1,n3dvars
var_id3d(n,m) = avn2var_id3d(n,m)
END DO
levtyp3d(m) = avn2levs3d(m)
END DO
CALL rdnmcgrb(nx_ext,ny_ext,nz_ext,gribfile,grbflen, gribtime, &
gridesc, iproj_grb, gthin, &
ni_grb,nj_grb,np_grb, nk_grb,zk_grb, npeq,nit, &
pi_grb,pj_grb,ipole, di_grb,dj_grb, &
latsw,lonsw, latne,lonne, &
latrot,lonrot,angrot, &
latstr,lonstr,facstr, &
lattru1,lattru2,lontrue, &
scanmode, iscan,jscan,kscan, &
ires,iearth,icomp, &
jpenta,kpenta,mpenta,ispect,icoeff, &
xp_grb,yp_grb, xo_grb,yo_grb,zo_grb, &
rcdata,var_grb2d,var_grb3d,var_lev3d,lvldbg,iret)
IF (iret /= 0) THEN
ISTATUS = -888
GOTO 999
END IF
max_nr2d = 0
DO n=1,n2dvars
DO m=1,n2dlvtps
max_nr2d = MAX( max_nr2d, var_nr2d(n,m) )
END DO
END DO
max_nr3d = 0
min_nr3d = nz_ext
DO n=1,n3dvars
max_nr3d = MAX( max_nr3d, var_nr3d(n,1) )
min_nr3d = MIN( min_nr3d, var_nr3d(n,1) )
END DO
IF ( max_nr3d == 0 ) THEN
WRITE (6,'(a)') &
'No 3-D variable was found in the GRIB file', &
'Program stopped in GETNCEPAVN2.'
! STOP
ISTATUS = -888
GOTO 999
END IF
IF ( max_nr2d == 0 ) THEN
WRITE (6,'(a)') &
'No 2-D variables was found in the GRIB file'
END IF
! write (6,'(/a7,2x,6(i7))')
! : 'Lev\\VID',(var_id3d(n,1),n=1,n3dvars)
! DO 60 k=1,max_nr3d
! var_lev3d(k,5,1) = var_lev3d(k,1,1)
! var_lev3d(k,6,1) = var_lev3d(k,1,1)
! write (6,'(/i5,4x,6(i7))')
! : k,(var_lev3d(k,n,1),n=1,n3dvars)
! 60 CONTINUE
DO k=1,min_nr3d
DO n=2,n3dvars
IF ( var_lev3d(k,1,1) /= var_lev3d(k,n,1) ) THEN
WRITE (6,'(a)') &
'Variables were not at the same level.', &
'Program stopped in GETNCEPAVN2.'
! STOP
ISTATUS = -888
GOTO 999
END IF
END DO
END DO
IF ( iproj_grb == 5 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 1
ELSE IF ( iproj_grb == 5 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -1
ELSE IF ( iproj_grb == 3 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 2
ELSE IF ( iproj_grb == 3 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -2
ELSE IF ( iproj_grb == 1 ) THEN
iproj_ext = 3
ELSE IF ( iproj_grb == 0 ) THEN
iproj_ext = 4
ELSE
WRITE (6,'(a)') &
'Unknown map projection. Set to non-projection.'
iproj_ext = 0
END IF
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
dx_ext = di_grb
dy_ext = dj_grb
DO i=1, nx_ext
DO j=1, ny_ext
lon_ext(i,j)= lonsw + (i-1) * dx_ext
lat_ext(i,j)= latsw + (j-1) * dy_ext
END DO
END DO
IF ( lon_0_360 ) THEN
DO i = 1,nx_ext
ii(i) = i
END DO
ELSE
IF (mod(nx_ext,2) /= 0) THEN
WRITE(6,'(a/)') 'Wrong size of nx_ext in GETNCEPAVN2 for lon_0_360.'
CALL arpsstop('Wrong nx_ext size.',1)
END IF
DO i = 1,nx_ext/2 ! map 1-180 to 181-360
ii(i) = i + nx_ext/2
END DO
DO i = nx_ext/2+1, nx_ext ! map 181-360 to 1-180
ii(i) = i - nx_ext/2
END DO
WHERE (lon_ext >= 180.) lon_ext = lon_ext - 360
DO j = 1,ny_ext ! swap lat_ext & lon_ext
DO i = 1,nx_ext/2
rtmp = lat_ext(ii(i),j)
lat_ext(ii(i),j) = lat_ext(i,j)
lat_ext(i, j) = rtmp
rtmp = lon_ext(ii(i),j)
lon_ext(ii(i),j) = lon_ext(i,j)
lon_ext(i, j) = rtmp
END DO
END DO
END IF
PRINT *,'LatSW = ',latsw,' LonSW = ',lonsw
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
DO j=1,ny_ext
DO i=1,nx_ext
IF ( var_nr2d(1,1) == 0 ) THEN
psfc_ext (i,j) = -999.0
ELSE
psfc_ext (i,j) = var_grb2d(ii(i),j,1,1) * 100.0
END IF
IF ( var_nr2d(2,1) == 0 ) THEN
trn_ext (i,j) = -999.0
ELSE
trn_ext (i,j) = var_grb2d(ii(i),j,2,1)/g
END IF
IF ( var_nr3d(1,2) == 0 ) THEN
tsoil_ext (i,j,:) = -999.0
qsoil_ext (i,j,:) = -999.0
ELSE
IF(soilmodel_option == 1) THEN ! ARPS: two-layer force-restore model)
tsoil_ext(i,j,1) = var_grb2d(ii(i),j,3,1) ! sfc temp.
IF ( nint(var_grb2d(ii(i),j,5,1)) == 1 ) THEN ! soil temp over land
tsoil_ext(i,j,2) = var_grb3d(ii(i),j,1,1,2)
IF ( tsoil_ext (i,j,2) <= 200. ) THEN
tsoil_ext(i,j,2) = tsoil_ext(i,j,1)
END IF
qsoil_ext(i,j,1) = var_grb3d(ii(i),j,2,2,2)
qsoil_ext(i,j,2) = var_grb3d(ii(i),j,1,2,2)
soiltyp_ext(i,j)= 0 ! We do not know the soil type
ELSE ! sfc temp over sea
tsoil_ext(i,j,2) = tsoil_ext(i,j,1)
qsoil_ext(i,j,:) = 1.0
soiltyp_ext(i,j) = 13 ! Water
END IF
ELSE ! ARPS: multi-layer OUSoil model
tsoil_ext(i,j,1) = var_grb2d(ii(i),j,3,1) ! sfc temp.
IF ( nint(var_grb2d(ii(i),j,5,1)) == 1 ) THEN ! soil temp over land
tsoil_ext(i,j,2) = var_grb3d(ii(i),j,2,1,2) ! 0 - 10 cm
tsoil_ext(i,j,3) = var_grb3d(ii(i),j,1,1,2) ! 10 - 200 cm
qsoil_ext(i,j,1) = var_grb3d(ii(i),j,2,2,2) ! 0 - 10 cm
! Value at surface assume equals
! the first layer below ground
qsoil_ext(i,j,2) = var_grb3d(ii(i),j,2,2,2) ! 0 - 10 cm
qsoil_ext(i,j,3) = var_grb3d(ii(i),j,1,2,2) ! 10 - 200 cm
soiltyp_ext(i,j)= 0 ! We do not know the soil type
ELSE ! sfc temp over sea
tsoil_ext(i,j,2:3) = tsoil_ext(i,j,1) ! over water, All soil layers = SST
qsoil_ext(i,j,1:3) = 1.0 ! All soil layers = 1.0
soiltyp_ext(i,j) = 13 ! Water
END IF
END IF ! soilmodel_option
END IF
IF ( var_nr2d(4,1) == 0 ) THEN
wetcanp_ext(i,j) = -999.0
ELSE
wetcanp_ext(i,j) = var_grb2d(ii(i),j,4,1)*1.e-3 ! in meter
END IF
IF ( var_nr2d(6,1) == 0 ) THEN
snowdpth_ext(i,j) = -999.
ELSE
! Convert water equiv. of accum. snow depth (kg/m**2) to meters
! (where 1 meter liquid water is set equivqlent to 10 meters snow).
! 0.01 = 10. (m snow/m liquid) / (1000 kg/m**3)
snowdpth_ext(i,j) = 0.01 * var_grb2d(ii(i),j,6,1) ! in meters
END IF
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
nz1 = MIN(var_nr3d(1,1),nz_ext)
IF ( var_lev3d(1,1,1) > var_lev3d(nz1,1,1) ) THEN ! 1st level at sfc
chklev = 1
lvscan = 0
ELSE
chklev = -1
lvscan = nz1+1
END IF
DO k=1,nz1
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
p_ext (i,j,kk) = 100.0 * FLOAT(var_lev3d(k,1,1)) ! Pressure
hgt_ext(i,j,kk) = var_grb3d(ii(i),j,k,1,1)
u_ext (i,j,kk) = var_grb3d(ii(i),j,k,2,1) ! u wind (m/s)
v_ext (i,j,kk) = var_grb3d(ii(i),j,k,3,1) ! v wind (m/s)
t_ext (i,j,kk) = var_grb3d(ii(i),j,k,4,1) ! Temperature (K)
qc_ext (i,j,kk) = var_grb3d(ii(i),j,k,7,1)
qr_ext (i,j,kk) = -999.
qi_ext (i,j,kk) = -999.
qs_ext (i,j,kk) = -999.
qh_ext (i,j,kk) = -999.
END DO
END DO
END DO
CALL getqvs(nx_ext,ny_ext,nz1, 1,nx_ext,1,ny_ext,1,nz1, &
p_ext, t_ext, qv_ext )
nz2 = MIN( nz1, min_nr3d )
DO k=1,nz2
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
qv_ext(i,j,kk) = 0.01*var_grb3d(ii(i),j,k,5,1)*qv_ext(i,j,kk)
END DO
END DO
END DO
IF ( nz2 < nz1 ) THEN
DO k=nz2+1,nz1
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
qv_ext(i,j,kk) = 0.0
var_lev3d(k,5,1) = var_lev3d(k,1,1)
END DO
END DO
END DO
END IF
istatus = 1
999 CONTINUE
DEALLOCATE(var_grb2d,var_grb3d,rcdata,var_lev3d)
RETURN
END SUBROUTINE getncepavn2
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GET_AVN_BIN ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE get_avn_bin(nx_ext,ny_ext,nz_ext, & 1,5
dir_extd,extdname,extdinit,extdfcst,julfname, &
iproj_ext,scale_ext,trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext,p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsfc_ext,tdeep_ext,wetsfc_ext,wetdp_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext, &
istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Reads and pass out a section of NCEP AVN GRIB
! (Grid #3, 1x1 degree) data file (created by program EXTRACT_AVN).
!
!-----------------------------------------------------------------------
!
! AUTHOR: M. Xue
! 07/25/2000
!
! MODIFICATION HISTORY:
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format
! julfname File name in yyjjjhhmm format
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsfc_ext Surface temperature
! tdeep_ext Soil temperature
! wetsfc_ext Top layer soil moisture
! wetdp_ext Deep soil moisture
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! istatus status indicator
!
! WORK ARRAYS:
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INTEGER :: nx_ext,ny_ext,nz_ext
CHARACTER (LEN=*) :: dir_extd
CHARACTER (LEN=*) :: extdname
CHARACTER (LEN=19) :: extdinit
CHARACTER (LEN=9) :: extdfcst
CHARACTER (LEN=9) :: julfname
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj_ext
REAL :: scale_ext,trlon_ext
REAL :: latnot_ext(2)
REAL :: x0_ext,y0_ext
REAL :: dx_ext,dy_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
REAL :: lat_ext(nx_ext,ny_ext)
REAL :: lon_ext(nx_ext,ny_ext)
REAL :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL :: tsfc_ext (nx_ext,ny_ext) ! Temperature at surface (K)
REAL :: tdeep_ext (nx_ext,ny_ext) ! Deep soil temperature (K)
REAL :: wetsfc_ext (nx_ext,ny_ext) ! Surface soil moisture
REAL :: wetdp_ext (nx_ext,ny_ext) ! Deep soil moisture
REAL :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL :: snowdpth_ext(nx_ext,ny_ext) ! Snow depth (m)
REAL :: trn_ext (nx_ext,ny_ext) ! External terrain (m)
REAL :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
REAL :: temp_ext (nx_ext,ny_ext) ! Automatic work array
!-----------------------------------------------------------------------
!
! Local variables
!
!-----------------------------------------------------------------------
INTEGER :: istatus,ierr
INTEGER :: nunit, idummy
REAL :: rdummy
CHARACTER (LEN=10) :: var_label
CHARACTER (LEN=256) :: gribfile
CHARACTER (LEN=13) :: gribtime
INTEGER :: i,j,k
INTEGER :: iyr,imo,iday,myr, jldy
INTEGER :: ihr,imin,isec
INTEGER :: ifhr,ifmin,ifsec
INTEGER :: grbflen, len1, lenrun
INTEGER :: iuout, ivout, ipout, ihout,itout, &
iqvout, itsfcout,itsoilout,iwsfcout,iwdpout, &
iwcnpout,isnowout,itrnout,ipsfcout, &
iugrdout,ivgrdout,itgrdout,iptgrdout,irhgrdout,ipmslout
INTEGER :: nx_ext_in, ny_ext_in, nz_ext_in
REAL :: latbgn,latend,lonbgn,lonend, del_lat, del_lon
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
IF(extdfcst == ' ') extdfcst='000:00:00'
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
CALL julday(iyr,imo,iday,jldy)
myr=MOD(iyr,100)
ifhr=0
ifmin=0
ifsec=0
READ(extdfcst,'(i3)',ERR=4,END=4) ifhr
4 CONTINUE
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i2.2)') &
iyr,imo,iday,ihr,'f',ifhr
len1=len_trim(dir_extd)
grbflen=len1
IF( grbflen == 0 .OR. dir_extd(1:grbflen) == ' ' ) THEN
dir_extd = '.'
grbflen=1
END IF
IF( dir_extd(grbflen:grbflen) /= '/'.AND.grbflen < len1 ) THEN
grbflen=grbflen+1
dir_extd(grbflen:grbflen)='/'
END IF
lenrun = len_trim( extdname )
gribfile = dir_extd(1:grbflen)//extdname(1:lenrun)//'.'//gribtime(1:13)
grbflen = grbflen + lenrun + 14
psfc_ext = -999.0
trn_ext = -999.0
tsfc_ext = -999.0
tdeep_ext = -999.0
wetsfc_ext = -999.0
wetdp_ext = -999.0
wetcanp_ext= -999.0
snowdpth_ext=-999.0
u_ext = -999.0
v_ext = -999.0
p_ext = -999.0
hgt_ext = -999.0
t_ext = -999.0
qv_ext = -999.0
CALL getunit( nunit)
CALL asnctl ('NEWLOCAL', 1, ierr)
CALL asnfile(trim(gribfile), '-F f77 -N ieee', ierr)
OPEN(UNIT=nunit,FILE=trim(gribfile), &
STATUS='old',FORM='unformatted',IOSTAT=istatus)
IF( istatus /= 0 ) THEN
WRITE(6,'(1x,a,a,/1x,i3,a)') &
'Error occured when opening file ',trim(gribfile), &
'using FORTRAN unit ',nunit,' Program stopped.'
! STOP
ISTATUS = -888
RETURN
END IF
PRINT*,'To read file ',trim(gribfile)
READ (nunit,ERR=910,END=920) nx_ext_in,ny_ext_in, nz_ext_in
IF( nx_ext_in /= nx_ext.OR.ny_ext_in /= ny_ext .OR. nz_ext_in /= nz_ext ) THEN
WRITE(6,'(1x,a)') &
' Dimensions in GET_AVN_BIN inconsistent with data.'
WRITE(6,'(1x,a,3I15)') ' Read were: ', &
nx_ext_in, ny_ext_in, nz_ext_in
WRITE(6,'(1x,a,3I15)') ' Expected: ', &
nx_ext, ny_ext, nz_ext
WRITE(6,'(1x,a)') &
' Program aborted in GET_AVN_BIN.'
! STOP
CALL arpsstop("get_avn_bin",1)
END IF
READ (nunit,ERR=910,END=920) lonbgn,lonend,latbgn,latend
READ (nunit,ERR=910,END=920) del_lon, del_lat
READ (nunit,ERR=910,END=920) &
iuout, ivout, ipout, ihout,itout, &
iqvout, itsfcout,itsoilout,iwsfcout,iwdpout, &
iwcnpout,isnowout,itrnout,ipsfcout,iugrdout, &
ivgrdout,itgrdout,iptgrdout,irhgrdout,ipmslout, &
iproj_ext,idummy,idummy, idummy, idummy, &
idummy, idummy, idummy, idummy, idummy
READ (nunit,ERR=910,END=920) &
scale_ext,trlon_ext,latnot_ext(1),latnot_ext(2), &
x0_ext, y0_ext, rdummy, rdummy, rdummy, rdummy, &
rdummy, rdummy, rdummy, rdummy, rdummy, &
rdummy, rdummy, rdummy, rdummy, rdummy, &
rdummy, rdummy, rdummy, rdummy, rdummy, &
rdummy, rdummy, rdummy, rdummy, rdummy
IF( iuout == 1 ) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) u_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array u_ext.'
END IF
IF( ivout == 1 ) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) v_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array v_ext.'
END IF
IF( ipout == 1 ) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) p_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array p_ext.'
END IF
IF( ihout == 1 ) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) hgt_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array hgt_ext.'
END IF
IF( itout == 1 ) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) t_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array t_ext.'
END IF
IF( iqvout== 1 ) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) qv_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array qv_ext.'
END IF
IF( itsfcout==1 ) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) tsfc_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array tsfc_ext.'
END IF
IF( itsoilout==1) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) tdeep_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array tdeep_ext.'
END IF
IF( iwsfcout ==1) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) wetsfc_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array wetsfc_ext.'
END IF
IF( iwdpout ==1 ) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) wetdp_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array wetdp_ext.'
END IF
IF( iwcnpout ==1) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) wetcanp_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array wetcanp_ext.'
END IF
IF( isnowout ==1) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) snowdpth_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array snowdpth_ext.'
END IF
IF( itrnout ==1 ) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) trn_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array trn_ext.'
END IF
IF( ipsfcout ==1) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) psfc_ext
WRITE(6,'(a,a,a)')'Read ',var_label,' into array psfc_ext.'
END IF
IF( iugrdout ==1) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) temp_ext ! discarded
WRITE(6,'(a,a,a)')'Read ',var_label,' into array temp_ext.'
END IF
IF( ivgrdout ==1) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) temp_ext ! discarded
WRITE(6,'(a,a,a)')'Read ',var_label,' into array temp_ext.'
END IF
IF( itgrdout ==1) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) temp_ext ! discarded
WRITE(6,'(a,a,a)')'Read ',var_label,' into array temp_ext.'
END IF
IF( irhgrdout ==1) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) temp_ext ! discarded
WRITE(6,'(a,a,a)')'Read ',var_label,' into array temp_ext.'
END IF
IF( iptgrdout ==1) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) temp_ext ! discarded
WRITE(6,'(a,a,a)')'Read ',var_label,' into array temp_ext.'
END IF
IF( ipmslout ==1) THEN
READ (nunit,ERR=910,END=920) var_label
READ (nunit,ERR=910,END=920) temp_ext ! discarded
WRITE(6,'(a,a,a)')'Read ',var_label,' into array temp_ext.'
END IF
CLOSE (UNIT=nunit)
CALL retunit( nunit)
PRINT*,'Finished reading file ',trim(gribfile)
PRINT*,' '
900 CONTINUE
dx_ext = del_lon
dy_ext = del_lat
IF( lonend > 180.0 ) THEN
lonend = lonend - 360.0
END IF
IF( lonbgn > 180.0 ) THEN
lonbgn = lonbgn - 360.0
END IF
IF( lonbgn > lonend ) lonbgn = lonbgn - 360.0
DO i=1,nx_ext
DO j=1,ny_ext
lon_ext(i,j)= lonbgn + (i-1) * dx_ext
lat_ext(i,j)= latbgn + (j-1) * dy_ext - 90.0
END DO
END DO
istatus = 1
RETURN
!
!-----------------------------------------------------------------------
!
! Error during read
!
!----------------------------------------------------------------------
!
910 CONTINUE
WRITE(6,'(/a/)') ' Error reading data in GET_AVN_BIN.'
istatus =2
RETURN
!
!-----------------------------------------------------------------------
!
! End-of-file during read
!
!----------------------------------------------------------------------
!
920 CONTINUE
WRITE(6,'(/a/)') ' End of file reached in GET_AVN_BIN.'
istatus =3
RETURN
END SUBROUTINE get_avn_bin
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETNNARR221 ######
!###### ######
!###### Developed by ######
!###### Atmospheric Science Division ######
!###### Lawrence Livermore National Laboratory ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE getnarr221(nx_ext,ny_ext,nz_ext,nzsoil_ext, & 1,10
nstyps_ext,dir_extd,extdname,extdopt,extdfmt, &
extdinit,extdfcst,julfname, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext,zpsoil_ext, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext,soiltyp_ext, &
t_2m_ext, qv_2m_ext, u_10m_ext, v_10m_ext, &
istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Reads a NMC GRIB (Grid #221, 32km) ETA file from the North American
! Regional Reanalysis (NARR) data for processing by ext2arps, a program
! that converts external files to ARPS variables and format.
! The data are in GRIB version 1 format.
!
! NOTE:
!
! The description about Eta 32km NARR output is available at
! http://wwwt.emc.ncep.noaa.gov/mmb/rreanl/index.html
!
! The data can be downloaded from
! http://nomads.ncdc.noaa.gov/#narr_datasets
!
! This subroutine assumes that data has been downloaded to local
! disk and stored in "dir_extd"/"extdname"_YYYYMMDD_HHHH_000.grb
!
! where:
!
! o "dir_extd" is specified inside arps.input;
! o "extdname" supposed to be "narr-a_221";
! o CC is the model cycle, extracted from "extdinit" (00,06,12,18);
! o HHHH is the forecast hour, extracted from "extdfcst";
! o YYYY is the year
! o MM is the month
! o DD is the day
! e.g. narr-a_221_20030701_0300_000.grb
!
!-----------------------------------------------------------------------
!
! AUTHOR: Tina Katopodes Chow (04/18/2005)
! modified from getnmceta212 to create getnmceta221
!
! MODIFICATION HISTORY:
!
! 2005/06/23 (Y. Wang)
! Incorporated into ARPS package and renamed to getnarr221 as well did
! some tests.
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdopt Option of external data sources
! extdfmt Option of external data format
!
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format, does not used here
! julfname File name in yyjjjhhmm format
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsoil_ext Soil temperature (K)
! qsoil_ext Soil moisture (m**3/m**3)
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! T_2m_ext Temperature at 2m AGL
! qv_2m_ext Specific Humidity at 2m AGL
! U_10m_ext U at 10m AGL
! V_10m_ext V at 10m AGL
!
! istatus status indicator
!
! WORK ARRAYS:
!
! var_grb3d Arrays to store the GRIB 3-D variables:
! var_grb3d(nxgrb,nygrb,nzgrb,1,1) - Temperature (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,1) - Specific humidity
! (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,3,1) - u wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,4,1) - v wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,5,1) - Geopotential
! height (gpm)
! var_grb3d(nxgrb,nygrb,nzgrb,6,1) - Pressure vertical
! velocity (Pa/s)
! (if applied)
! var_grb3d(nxgrb,nygrb,nzgrb,1,2) - soil temp. (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,2) - vol. soil moist.
! (m**3/m**3)
!
! var_grb2d Arrays to store the GRIB 2-D variables:
! var_grb2d(nxgrb,nygrb,1) - Surface pressure (Pa)
! var_grb2d(nxgrb,nygrb,2) - Geopotential height (gpm)
! var_grb2d(nxgrb,nygrb,3) - Surface temperature (K)
! var_grb2d(nxgrb,nygrb,4) - Plant canopy surface
! water (kg/m**2)
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INCLUDE 'gribcst.inc'
CHARACTER (LEN=*) :: dir_extd
CHARACTER (LEN=*) :: extdname
INTEGER :: extdopt
INTEGER :: extdfmt
CHARACTER (LEN=19) :: extdinit
CHARACTER (LEN=9) :: extdfcst ! does not use
CHARACTER (LEN=9) :: julfname ! does not use
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj_ext
REAL :: scale_ext,trlon_ext
REAL :: latnot_ext(2)
REAL :: x0_ext,y0_ext
REAL :: dx_ext,dy_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
INTEGER :: nx_ext,ny_ext,nz_ext
INTEGER :: nzsoil_ext, nstyps_ext
REAL :: lat_ext(nx_ext,ny_ext)
REAL :: lon_ext(nx_ext,ny_ext)
REAL :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL :: zpsoil_ext(nx_ext,ny_ext,nzsoil_ext) !Soil depths (m)
REAL :: tsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Soil temperature (K)
REAL :: qsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Soil moisture (m**3/m**3)
REAL :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL :: snowdpth_ext(nx_ext,ny_ext) ! Snow depth (m)
REAL :: trn_ext (nx_ext,ny_ext) ! External terrain (m)
REAL :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
INTEGER soiltyp_ext (nx_ext,ny_ext) ! Soil type
REAL :: t_2m_ext (nx_ext,ny_ext)
REAL :: qv_2m_ext(nx_ext,ny_ext)
REAL :: u_10m_ext(nx_ext,ny_ext)
REAL :: v_10m_ext(nx_ext,ny_ext)
!
!-----------------------------------------------------------------------
!
! Other external variable arrays
!
!-----------------------------------------------------------------------
!
REAL :: x_ext(nx_ext)
REAL :: y_ext(ny_ext)
INTEGER :: istatus
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:,:) ! GRIB variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:,:) ! GRIB 3-D variables
INTEGER, ALLOCATABLE :: var_lev3d(:,:,:) ! Levels (hybrid) for
! each 3-D variable
REAL, ALLOCATABLE :: rcdata(:) ! temporary data array
!
!-----------------------------------------------------------------------
!
! Original grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj
REAL :: scale,trlon,x0,y0
REAL :: latnot(2)
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=256) :: gribfile
CHARACTER (LEN=13) :: gribtime
CHARACTER (LEN=17) :: gribtimetmp
INTEGER :: i,j,k,kk
INTEGER :: iyr,imo,iday
INTEGER :: ihr, imin, isec
INTEGER :: ifhr, ifmin, ifsec
INTEGER :: grbflen, len1, lenrun
INTEGER :: m,n,nz1,max_nr2d,max_nr3d
REAL :: govrd
REAL :: soildepth_ext(5) ! EMK 15 June 2002
INTEGER :: chklev, lvscan
INTEGER :: iret ! Return flag
INTEGER :: terrainflag
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
INCLUDE 'grid.inc'
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=42) :: gridesc ! Grid description
INTEGER :: iproj_grb ! Map projection indicator
INTEGER :: gthin ! Indicator of whether the grid is "thinned"
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
INTEGER :: np_grb ! Total number of horizontal grid points
INTEGER :: nk_grb ! Number of vertical parameters
REAL :: zk_grb(nz_ext) ! Vertical coordinate parameters
INTEGER :: npeq ! Number of lat circles from pole to equator
INTEGER :: nit(nz_ext) ! Number of x-points for thinned grid
REAL :: pi_grb ! x-coordinate of pole point
REAL :: pj_grb ! y-coordinate of pole point
INTEGER :: ipole ! Projection center flag
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
REAL :: latne ! Latitude of North East corner point
REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
REAL :: latrot ! Latitude of southern pole of rotation
REAL :: lonrot ! Longitude of southern pole of rotation
REAL :: angrot ! Angle of rotation
REAL :: latstr ! Latitude of the pole of stretching
REAL :: lonstr ! Longitude of the pole of stretching
REAL :: facstr ! Stretching factor
INTEGER :: scanmode ! Scanning indicator
INTEGER :: iscan ! x-direction scanning indicator
INTEGER :: jscan ! y-direction scanning indicator
INTEGER :: kscan ! FORTRAN index scanning indicator
INTEGER :: ires ! Resolution direction increments indicator
INTEGER :: iearth ! Earth shape indicator: spherical or oblate?
INTEGER :: icomp ! (u,v) components decomposition indicator
INTEGER :: jpenta ! J-Pentagonal resolution parameter
INTEGER :: kpenta ! K-Pentagonal resolution parameter
INTEGER :: mpenta ! M-Pentagonal resolution parameter
INTEGER :: ispect ! Spectral representation type
INTEGER :: icoeff ! Spectral coefficient storage mode
REAL :: xp_grb ! X coordinate of sub-satellite point
REAL :: yp_grb ! Y coordinate of sub-satellite point
REAL :: xo_grb ! X coordinate of image sector origin
REAL :: yo_grb ! Y coordinate of image sector origin
REAL :: zo_grb ! Camera altitude from center of Earth
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
ALLOCATE(var_grb2d(nx_ext,ny_ext,n2dvs,n2dlvt))
ALLOCATE(var_grb3d(nx_ext,ny_ext,nz_ext,n3dvs,n3dlvt))
ALLOCATE(rcdata(nx_ext*ny_ext))
ALLOCATE(var_lev3d(nz_ext,n3dvs,n3dlvt))
! Define depths of soil layers
DATA soildepth_ext/0.0,-0.05,-0.25,-0.70,-1.50/
! Parse date into year, month, day, etc...
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
ifhr=0 ! fixed for NARR reanalysis data
ifmin=0
ifsec=0
! gribtime is used to store the time in the required format for later
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i2.2)') &
iyr,imo,iday,ihr,'f',ifhr
len1=LEN(dir_extd)
grbflen=len1
CALL strlnth( dir_extd, grbflen )
IF( grbflen == 0 .OR. dir_extd(1:grbflen) == ' ' ) THEN
dir_extd = '.'
grbflen=1
END IF
IF( dir_extd(grbflen:grbflen) /= '/' .AND. grbflen < len1 ) THEN
grbflen=grbflen+1
dir_extd(grbflen:grbflen)='/'
END IF
len1 = grbflen
lenrun = LEN( extdname )
CALL strlnth( extdname, lenrun )
!TINA - use gribtimetmp only for setting the file name.
WRITE (gribtimetmp,'(i4.4,i2.2,i2.2,a1,i2.2,a)') &
iyr,imo,iday,'_',ihr,'00_000'
gribfile = dir_extd(1:grbflen)//extdname(1:lenrun) &
//'_'//gribtimetmp(1:17)//'.grb'
grbflen = grbflen + lenrun + 22
!
!-----------------------------------------------------------------------
!
! RDNMCGRB reads NMC GRIB data
!
!-----------------------------------------------------------------------
!
govrd = g/rd
!Get grid type and projection type
gridtyp = narr221grid
mproj_grb = narr221proj
!Get number and names of 2d variables
n2dvars = narr221nvs2d
n2dlvtps = narr221nlvt2d
DO k=1,n2dlvtps
DO n=1,n2dvars
var_id2d(n,k) = narr221var_id2d(n,k)
END DO
levtyp2d(k) = narr221levs2d(k)
END DO
!Get number and names of 3d variables
n3dvars = narr221nvs3d
n3dlvtps = narr221nlvt3d
DO m=1,n3dlvtps
DO n=1,n3dvars
var_id3d(n,m) = narr221var_id3d(n,m)
END DO
levtyp3d(m) = narr221levs3d(m)
END DO
!Get original map projection for restore purpose
CALL getmapr(iproj,scale,latnot,trlon,x0,y0)
!Read fixed field file
CALL rdnmcgrb(nx_ext,ny_ext,nz_ext,dir_extd(1:len1)//'AWIP32.fixed', &
len1+12,'1979110800f00', &
gridesc, iproj_grb, gthin, &
ni_grb,nj_grb,np_grb, nk_grb,zk_grb, npeq,nit, &
pi_grb,pj_grb,ipole, di_grb,dj_grb, &
latsw,lonsw, latne,lonne, &
latrot,lonrot,angrot, &
latstr,lonstr,facstr, &
lattru1,lattru2,lontrue, &
scanmode, iscan,jscan,kscan, &
ires,iearth,icomp, &
jpenta,kpenta,mpenta,ispect,icoeff, &
xp_grb,yp_grb, xo_grb,yo_grb,zo_grb, &
rcdata,var_grb2d,var_grb3d,var_lev3d,lvldbg,iret)
IF (iret /= 0) THEN
ISTATUS = -888
GOTO 999
END IF
max_nr2d = 0
DO n=1,n2dvars
DO m=1,n2dlvtps
max_nr2d = MAX( max_nr2d, var_nr2d(n,m) )
END DO
END DO
IF ( max_nr2d == 0 ) THEN
WRITE (6,'(a)') &
'No 2-D fixed field was found in the GRIB file, AWIP32.fixed.'
END IF
terrainflag = var_nr2d(2,1)
!Read grib data
print *,'Reading gribfile = ', TRIM(gribfile)
CALL rdnmcgrb(nx_ext,ny_ext,nz_ext,gribfile,grbflen, gribtime, &
gridesc, iproj_grb, gthin, &
ni_grb,nj_grb,np_grb, nk_grb,zk_grb, npeq,nit, &
pi_grb,pj_grb,ipole, di_grb,dj_grb, &
latsw,lonsw, latne,lonne, &
latrot,lonrot,angrot, &
latstr,lonstr,facstr, &
lattru1,lattru2,lontrue, &
scanmode, iscan,jscan,kscan, &
ires,iearth,icomp, &
jpenta,kpenta,mpenta,ispect,icoeff, &
xp_grb,yp_grb, xo_grb,yo_grb,zo_grb, &
rcdata,var_grb2d,var_grb3d,var_lev3d,lvldbg,iret)
IF (iret /= 0) THEN
ISTATUS = -888
GOTO 999
END IF
DO n=1,n2dvars
DO m=1,n2dlvtps
max_nr2d = MAX( max_nr2d, var_nr2d(n,m) )
END DO
END DO
max_nr3d = 0
DO n=1,n3dvars
max_nr3d = MAX( max_nr3d, var_nr3d(n,1) )
END DO
IF ( max_nr3d == 0 ) THEN
WRITE (6,'(a)') &
'No 3-D variable was found in the GRIB file.', &
'Dataset problem in GETNARR221.', &
' '
ISTATUS = -888
GOTO 999
END IF
IF ( max_nr2d == 0 ) THEN
WRITE (6,'(a)') &
'No 2-D variables was found in the GRIB file.'
END IF
! WRITE (6,'(/a7,2x,6(i7))') &
! 'Lev\\VID',(var_id3d(n,1),n=1,n3dvars)
! DO k=1,max_nr3d
! WRITE (6,'(/i5,4x,6(i7))') &
! k,(var_lev3d(k,n,1),n=1,n3dvars)
! END DO
DO k=1,max_nr3d
DO n=2,n3dvars
IF ( var_lev3d(k,1,1) /= var_lev3d(k,n,1) ) THEN
WRITE (6,'(a)') &
'Variables were not at the same level.', &
'Dataset problem in GETNARR221.', &
' '
ISTATUS = -888
GOTO 999
END IF
END DO
END DO
!Set projection and grid spacing
IF ( iproj_grb == 5 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 1
ELSE IF ( iproj_grb == 5 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -1
ELSE IF ( iproj_grb == 3 .AND. ipole == 0 ) THEN ! Center in NP
iproj_ext = 2
ELSE IF ( iproj_grb == 3 .AND. ipole == 1 ) THEN ! Center in SP
iproj_ext = -2
ELSE IF ( iproj_grb == 1 ) THEN
iproj_ext = 3
ELSE IF ( iproj_grb == 0 ) THEN
iproj_ext = 4
ELSE
WRITE (6,'(a)') 'Unknown map projection. Set to non-projection.'
iproj_ext = 0
END IF
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
dx_ext = di_grb
dy_ext = dj_grb
CALL setmapr(iproj_ext,scale_ext,latnot_ext,trlon_ext)
CALL lltoxy(1,1,latsw,lonsw,x0_ext,y0_ext)
DO i=1,nx_ext
x_ext(i)=x0_ext+(i-1)*dx_ext
END DO
DO j=1,ny_ext
y_ext(j)=y0_ext+(j-1)*dy_ext
END DO
CALL xytoll(nx_ext,ny_ext,x_ext,y_ext,lat_ext,lon_ext)
!---------------------------------------------------------------------
! Define soil depths
!---------------------------------------------------------------------
DO k=1,nzsoil_ext
DO j=1,ny_ext
DO i=1,nx_ext
zpsoil_ext(i,j,k) = soildepth_ext(k)
END DO
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
DO j=1,ny_ext
DO i=1,nx_ext
IF ( var_nr2d(1,1) == 0 ) THEN ! first level type, first variable
psfc_ext (i,j) = -999.0
ELSE
!psfc_ext (i,j) = var_grb2d(i,j,1,1) * 100.0
psfc_ext (i,j) = var_grb2d(i,j,1,1) ! already with Pa unit (F.KONG)
END IF
IF ( terrainflag == 0 ) THEN
trn_ext (i,j) = -999.0
WRITE(6,'(/a/)') 'WARNING: no terrain found in grib file .... '
ELSE
trn_ext (i,j) = var_grb2d(i,j,2,1)
END IF
IF ( var_nr3d(1,2) == 0 ) THEN ! do not contain soil temperature
DO k=1,nzsoil_ext
tsoil_ext (i,j,k) = -999.0
qsoil_ext (i,j,k) = -999.0
END DO
ELSE ! yes, it contain for NARR 221
IF (soilmodel_option == 1) THEN ! Old ARPS Force-Restore Soil Model
tsoil_ext(i,j,1) = var_grb2d(i,j,3,1) ! surface temperature
IF ( nint(var_grb2d(i,j,5,1)) == 1 ) THEN ! soil temp over land
tsoil_ext(i,j,2) = 0.1 * var_grb3d(i,j,1,1,2) & ! 0-10cm
+ 0.3 * var_grb3d(i,j,2,1,2) & ! 10-40cm
+ 0.6 * var_grb3d(i,j,3,1,2) ! 40-100cm
! should contain 100-200cm here?
soiltyp_ext(i,j) = 0
ELSE ! sfc temp over sea
tsoil_ext(i,j,2) = var_grb2d(i,j,3,1)
soiltyp_ext(i,j) = 13 ! Set soil type to water
END IF
qsoil_ext(i,j,1) = var_grb3d(i,j,1,2,2)
qsoil_ext(i,j,2) = 0.1 * var_grb3d(i,j,1,2,2) & ! 0-10cm
+ 0.3 * var_grb3d(i,j,2,2,2) & ! 10-40cm
+ 0.6 * var_grb3d(i,j,3,2,2) ! 40-100cm
ELSE ! OU Soil model
IF ( nint(var_grb2d(i,j,5,1)) == 1 ) THEN ! Land
tsoil_ext (i,j,1) = var_grb2d(i,j,3,1) ! Ground temperature
qsoil_ext (i,j,1) = var_grb3d(i,j,1,2,2) ! Assumed to be same
! as first below ground
! level.
DO k=2,nzsoil_ext
! "TSOIL" in GRIB is below ground, treated as separate
! variable from ground temperature.
tsoil_ext (i,j,k) = var_grb3d(i,j,k-1,1,2) ! Not a bug;
qsoil_ext (i,j,k) = var_grb3d(i,j,k-1,2,2)
END DO
ELSE ! Water
DO k=1,nzsoil_ext
tsoil_ext (i,j,k) = var_grb2d(i,j,3,1) ! Water temperature
qsoil_ext (i,j,k) = 1. ! 100% water
END DO
END IF ! Land or water?
END IF ! soilmodel_option
END IF
IF ( var_nr2d(4,1) == 0 ) THEN
wetcanp_ext(i,j) = -999.0
ELSE ! Plant canopy surface water (kg/m**2)
wetcanp_ext(i,j) = var_grb2d(i,j,4,1)*1.e-3 ! in meter
END IF
IF ( var_nr2d(6,1) == 0 ) THEN
snowdpth_ext(i,j) = -999
ELSE
! Convert water equiv. of accum. snow depth (kg/m**2) to meters
! (where 1 meter liquid water is set equivqlent to 10 meters snow).
! 0.01 = 10. (m snow/m liquid) / (1000 kg/m**3)
snowdpth_ext(i,j) = 0.01 * var_grb2d(i,j,6,1) ! in meters
END IF
IF( var_nr2d(1,2) == 0 ) THEN
t_2m_ext(i,j)= -999.0
ELSE
t_2m_ext(i,j)= var_grb2d(i,j,1,2)
END IF
IF( var_nr2d(2,2) == 0 ) THEN
qv_2m_ext(i,j)= -999.0
ELSE
qv_2m_ext(i,j)= var_grb2d(i,j,2,2)
END IF
IF( var_nr2d(3,2) == 0 ) THEN
u_10m_ext(i,j)= -999.0
ELSE
u_10m_ext(i,j)= var_grb2d(i,j,3,2)
END IF
IF( var_nr2d(4,2) == 0 ) THEN
v_10m_ext(i,j)= -999.0
ELSE
v_10m_ext(i,j)= var_grb2d(i,j,4,2)
END IF
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
nz1 = MIN(var_nr3d(1,1),nz_ext)
IF ( var_lev3d(1,1,1) > var_lev3d(nz1,1,1) ) THEN ! 1st level at sfc
chklev = 1
lvscan = 0
ELSE
chklev = -1
lvscan = nz1+1
END IF
DO k=1,nz1
kk = chklev * k + lvscan
DO j=1,ny_ext
DO i=1,nx_ext
p_ext (i,j,kk) = 100.0 * FLOAT(var_lev3d(k,1,1)) ! Pressure
t_ext (i,j,kk) = var_grb3d(i,j,k,1,1) ! Temperature (K)
qv_ext (i,j,kk) = var_grb3d(i,j,k,2,1) ! Spec. humidity
! (kg/kg)
u_ext (i,j,kk) = var_grb3d(i,j,k,3,1) ! u wind (m/s)
v_ext (i,j,kk) = var_grb3d(i,j,k,4,1) ! v wind (m/s)
hgt_ext(i,j,kk) = var_grb3d(i,j,k,5,1) ! height (m)
! vertical velocity (pressure) - skipped.
qc_ext (i,j,kk) = var_grb3d(i,j,k,7,1) ! height (m)
qi_ext (i,j,kk) = var_grb3d(i,j,k,8,1) ! height (m)
qr_ext (i,j,kk) = -999.
qs_ext (i,j,kk) = -999.
qh_ext (i,j,kk) = -999.
END DO
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Rotate winds to be relative to true north.
! The RUC data are sent as grid-relative.
!
!-----------------------------------------------------------------------
!
!NCEP NARR output is already earth relative - TINA
istatus = 1
!
!-----------------------------------------------------------------------
!
! Reset map projection to previous values
!
!-----------------------------------------------------------------------
!
999 CONTINUE
CALL setmapr(iproj,scale,latnot,trlon)
CALL setorig(1,x0,y0)
DEALLOCATE(var_grb2d,var_grb3d,rcdata,var_lev3d)
RETURN
END SUBROUTINE getnarr221
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETNCEPGFS_GRB2 ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
SUBROUTINE getncepgfs_grb2(nx_ext,ny_ext,nz_ext,nzsoil_ext, & 1,6
dir_extd,extdname,extdopt,nofixdim,lon_0_360, &
extdinit,extdfcst,julfname, &
iproj_ext,scale_ext, &
trlon_ext,latnot_ext,x0_ext,y0_ext, &
lat_ext,lon_ext,zpsoil_ext, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext,soiltyp_ext, &
t_2m_ext, qv_2m_ext, u_10m_ext, v_10m_ext, &
istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Reads a NCEP GFS 0.5 degree global data in GRIB2 for processing by ext2arps.
!
!-----------------------------------------------------------------------
!
! AUTHOR: Yunheng Wang
! 08/02/2006
!
! MODIFICATION HISTORY:
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd Directory name for external file
! extdname Prefix string of external file name
! extdopt Option of external data sources
! extdfmt Option of external data format
!
! extdinit Initialized time in mm-dd-yyyy:hh:mm:ss format
! extdfcst Forecast hour in HHH:MM:SS format
! julfname File name in yyjjjhhmm format
!
! OUTPUT:
!
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! x0_ext x coordinate of origin of external data
! y0_ext y coordinate of origin of external data
! lat_ext latitude of external data points (degrees N)
! lon_ext longitude of external data points (degrees E)
! p_ext pressure (Pascal)
! hgt_ext height (m)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsoil_ext Soil temperature
! qsoil_ext Soil moisture
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! T_2m_ext Temperature at 2m AGL
! qv_2m_ext Specific Humidity at 2m AGL
! U_10m_ext U at 10m AGL
! V_10m_ext V at 10m AGL
!
! istatus status indicator
!
! WORK ARRAYS:
!
! var_grb3d Arrays to store the GRIB 3-D variables:
! var_grb3d(nxgrb,nygrb,nzgrb,1,1) - Temperature (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,1) - Specific humidity
! (kg/kg)
! var_grb3d(nxgrb,nygrb,nzgrb,3,1) - u wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,4,1) - v wind (m/s)
! var_grb3d(nxgrb,nygrb,nzgrb,5,1) - Geopotential
! height (gpm)
! var_grb3d(nxgrb,nygrb,nzgrb,6,1) - Pressure vertical
! velocity (Pa/s)
! (if applied)
! var_grb3d(nxgrb,nygrb,nzgrb,1,2) - soil temp. (K)
! var_grb3d(nxgrb,nygrb,nzgrb,2,2) - vol. soil moist.
! (m**3/m**3)
!
! var_grb2d Arrays to store the GRIB 2-D variables:
! var_grb2d(nxgrb,nygrb,1) - Surface pressure (Pa)
! var_grb2d(nxgrb,nygrb,2) - Geopotential height (gpm)
! var_grb2d(nxgrb,nygrb,3) - Surface temperature (K)
! var_grb2d(nxgrb,nygrb,4) - Plant canopy surface
! water (kg/m**2)
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
CHARACTER (LEN=*) :: dir_extd
CHARACTER (LEN=*) :: extdname
INTEGER, INTENT(IN) :: extdopt
INTEGER, INTENT(IN) :: nofixdim
LOGICAL, INTENT(IN) :: lon_0_360
CHARACTER (LEN=19) :: extdinit
CHARACTER (LEN=9) :: extdfcst
CHARACTER (LEN=9) :: julfname
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER :: iproj_ext
REAL :: scale_ext,trlon_ext
REAL :: latnot_ext(2)
REAL :: x0_ext,y0_ext
REAL :: dx_ext,dy_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
INTEGER :: nx_ext,ny_ext,nz_ext,nzsoil_ext
REAL :: lat_ext(nx_ext,ny_ext)
REAL :: lon_ext(nx_ext,ny_ext)
REAL :: zpsoil_ext(nx_ext,ny_ext,nzsoil_ext)
REAL :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL :: tsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Temperature at surface (K)
REAL :: qsoil_ext (nx_ext,ny_ext,nzsoil_ext) ! Deep soil temperature (K)
REAL :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL :: snowdpth_ext(nx_ext,ny_ext) ! Snow depth (m)
REAL :: trn_ext (nx_ext,ny_ext) ! External terrain (m)
REAL :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
REAL :: t_2m_ext (nx_ext,ny_ext)
REAL :: qv_2m_ext(nx_ext,ny_ext)
REAL :: u_10m_ext(nx_ext,ny_ext)
REAL :: v_10m_ext(nx_ext,ny_ext)
INTEGER :: soiltyp_ext(nx_ext,ny_ext)
INTEGER :: istatus
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:) ! GRIB 2D variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:) ! GRIB 3-D variables
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER (LEN=256) :: gribfile
CHARACTER (LEN=14) :: gribtime
INTEGER :: i,j,k,kk
INTEGER :: iyr,imo,iday,myr, jldy
INTEGER :: ihr,imin,isec
INTEGER :: ifhr,ifmin,ifsec
INTEGER :: grbflen, len1, lenrun
INTEGER :: iret ! Return flag
!
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
REAL :: latne ! Latitude of North East corner point
REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
INTEGER :: uvearth
!-----------------------------------------------------------------------
!
! Definitions for GFS 0.5 degree global data
!
!-----------------------------------------------------------------------
INTEGER, PARAMETER :: n3dvs = 9
INTEGER, PARAMETER :: GPH = 1 ! Geopotential Height
INTEGER, PARAMETER :: UWD = 2 ! U-component of Wind
INTEGER, PARAMETER :: VWD = 3 ! V-component of Wind
INTEGER, PARAMETER :: TMP = 4 ! Temperature
INTEGER, PARAMETER :: RHD = 5 ! Relative Humidity
INTEGER, PARAMETER :: WWD = 6 ! Pressure vertical velocity(Pa/s)
INTEGER, PARAMETER :: QCM = 7 ! Cloud Mixing Ratio
INTEGER, PARAMETER :: TSL = 8 ! Soil temperature
INTEGER, PARAMETER :: QSL = 9 ! Soil Moisture
INTEGER, PARAMETER :: n2dvs = 14
INTEGER, PARAMETER :: TSFC = 1 ! Temperature at ground
INTEGER, PARAMETER :: PSFC = 2 ! Pressure at ground
INTEGER, PARAMETER :: GSFC = 3 ! Geopotential Height at ground
INTEGER, PARAMETER :: SSFC = 4 ! Snow depth at ground (kg m-2)
INTEGER, PARAMETER :: T2M = 5 ! Temperature at 2m above ground
INTEGER, PARAMETER :: QV2M = 6 ! Specific Humidity at 2m above ground
INTEGER, PARAMETER :: U10M = 7 ! U-Component of Wind at 10m above ground
INTEGER, PARAMETER :: V10M = 8 ! V-Component of Wind at 10m above ground
INTEGER, PARAMETER :: PMSL = 9 ! Pressure Reduced to MSL
INTEGER, PARAMETER :: TNER = 10 ! Temperature at 0.995 Sigma level
INTEGER, PARAMETER :: PTNR = 11 ! Potential Temperature at 0.995 Sigma level
INTEGER, PARAMETER :: RHNR = 12 ! Relative Humidity at 0.995 Sigma level
INTEGER, PARAMETER :: UNER = 13 ! U-Component of Wind at 0.995 Sigma level
INTEGER, PARAMETER :: VNER = 14 ! V-Component of Wind at 0.995 Sigma level
INTEGER, PARAMETER :: totvs = n2dvs + n3dvs
INTEGER, PARAMETER :: varids(4,totvs) = RESHAPE( & ! order is IMPORTANT
! Discipline Category Parameter Layer/Level_Type
(/ 0, 3, 5, 100, & ! 1 GPH
0, 2, 2, 100, & ! 2 UWD
0, 2, 3, 100, & ! 3 VWD
0, 0, 0, 100, & ! 4 TMP
0, 1, 1, 100, & ! 5 RHD
0, 2, 8, 100, & ! 6 WWD
0, 1, 22, 100, & ! 7 QCM
0, 0, 0, 106, & ! 8 TSL
2, 0, 192, 106, & ! 9 QSL
0, 0, 0, 1, & ! 1 - TSFC
0, 3, 0, 1, & ! 2 - PSFC
0, 3, 5, 1, & ! 3 - GSFC
0, 1, 13, 1, & ! 4 - SSFC
0, 0, 0, 103, & ! 5 - T2M
0, 1, 0, 103, & ! 6 - QV2M
0, 2, 2, 103, & ! 7 - U10M
0, 2, 3, 103, & ! 8 - U10M
0, 3, 1, 101, & ! 9 - PMSL
0, 0, 0, 104, & ! 10 - TNER
0, 0, 2, 104, & ! 11 - PTNR
0, 1, 1, 104, & ! 12 - RHNR
0, 2, 2, 104, & ! 13 - UNER
0, 2, 3, 104 /), & ! 14 - VNER
(/ 4, totvs /) )
REAL, PARAMETER :: var3dlvl(26) = (/ 100000, 97500, 95000, 92500, 90000, 85000, &
80000, 75000, 70000, 65000, 60000, 55000, 50000, 45000, 40000, 35000, &
30000, 25000, 20000, 15000, 10000, 7000, 5000, 3000, 2000, 1000 /)
INTEGER, PARAMETER :: var3dindx(totvs) = (/ GPH, UWD, VWD, TMP, RHD, WWD, QCM, TSL, QSL, &
(0, i = n3dvs+1,totvs) /)
INTEGER, PARAMETER :: var2dindx(totvs) = (/ (0, i = 1, n3dvs), TSFC, PSFC, GSFC, SSFC, &
T2M, QV2M, U10M, V10M, PMSL, TNER, PTNR, RHNR, UNER, VNER/)
INTEGER, PARAMETER :: nzsoilin_ext = 4
REAL, PARAMETER :: soildepth_ext(nzsoilin_ext) = (/0.0, 0.1, 0.4, 1.0/)
! Surface and two soil layers 0-10cm & 10-200cm
REAL, PARAMETER :: var2dlvl(n2dvs) = (/ 0.,0.,0.,0.,2.,2.,10.,10., &
(9950., i=1,6) /) ! sigma = 0.995
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
x0_ext = 0.0
y0_ext = 0.0
!---------------------------------------------------------------------
!
! Define soil depths
!
!---------------------------------------------------------------------
IF(soilmodel_option == 1 .AND. nzsoil_ext /= 2) THEN
WRITE(6,'(2a,I3,a/2a,I2,a/,a,a)') &
'NCEP GFS grid #3 only provides 4 soil layers, However,',&
' You are trying to extract ',nzsoil_ext, ' layers.', &
' for ARPS two-layer force-restore model ', &
'(soilmodel_option = ',soilmodel_option,')', &
' Please check the code ext2arps.f90 for NCEPGFS_grb2 grid.',&
' Terminating ...'
CALL arpsstop('Wrong number soil layers.',1)
ELSE IF( soilmodel_option == 2 .AND. nzsoil_ext /= nzsoilin_ext) THEN
WRITE(6,'(2a,I3,a/2a,I2,a/,a,a)') &
'NCEP GFS grid #3 only provides 4 soil layers, However,',&
' You are trying to extract ',nzsoil_ext, ' layers.', &
' for ARPS multi-layer OUSoil model ', &
'(soilmodel_option = ',soilmodel_option,')', &
' Please check the code ext2arps.f90 for NCEPGFS_grb2 grid.',&
' Terminating ...'
CALL arpsstop('Wrong number of soil layers.',1)
END IF
IF(soilmodel_option == 1) THEN
DO k=1,nzsoil_ext
DO j=1,ny_ext
DO i=1,nx_ext
zpsoil_ext(i,j,k) = 0.5*(soildepth_ext(k)+soildepth_ext(k+1))
END DO
END DO
END DO
ELSE
DO k=1,nzsoil_ext
DO j=1,ny_ext
DO i=1,nx_ext
zpsoil_ext(i,j,k) = soildepth_ext(k)
END DO
END DO
END DO
END IF
IF(extdfcst == ' ') extdfcst='000:00:00'
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
CALL julday(iyr,imo,iday,jldy)
myr=MOD(iyr,100)
ifhr=0
ifmin=0
ifsec=0
READ(extdfcst,'(i3)',ERR=4,END=4) ifhr
4 CONTINUE
!
! AVN/GFS exceeds 99 hours, so we must use a 3 digit naming scheme.
!
!WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i3.3)') &
! WDT 2003-12-23 Use 2 digits, not 3, for forecast hour RLC
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i3.3)') &
iyr,imo,iday,ihr,'f',ifhr
grbflen=LEN_TRIM(dir_extd)
IF( grbflen == 0 .OR. dir_extd(1:grbflen) == ' ' ) THEN
dir_extd = './'
grbflen=2
END IF
IF( dir_extd(grbflen:grbflen) /= '/') THEN
grbflen=grbflen+1
dir_extd(grbflen:grbflen)='/'
END IF
lenrun = LEN( extdname )
CALL strlnth( extdname, lenrun )
gribfile = dir_extd(1:grbflen)//extdname(1:lenrun) &
//'.'//gribtime(1:14)
grbflen = grbflen + lenrun + 15
!
!-----------------------------------------------------------------------
!
! RDNMCGRB reads NMC GRIB2 data
!
!-----------------------------------------------------------------------
!
ALLOCATE(var_grb2d(nx_ext,ny_ext,n2dvs), STAT = istatus)
ALLOCATE(var_grb3d(nx_ext,ny_ext,nz_ext,n3dvs), STAT = istatus)
var_grb2d = -999.0
var_grb3d = 0.0
CALL rdnmcgrb2(nx_ext,ny_ext,nz_ext,gribfile,grbflen, gribtime, &
iproj_ext,ni_grb,nj_grb,di_grb,dj_grb, &
latsw,lonsw,lattru1,lattru2,lontrue,uvearth, &
n2dvs, n3dvs, totvs, nzsoilin_ext, &
varids, var2dindx, var3dindx, var2dlvl, var3dlvl, &
100*soildepth_ext, &
var_grb2d, var_grb3d, lvldbg, &
iret)
istatus = iret
IF (iret /= 0) RETURN
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
dx_ext = di_grb
dy_ext = dj_grb
DO j=1, ny_ext
DO i=1, nx_ext
lon_ext(i,j)= lonsw + (i-1) * dx_ext
lat_ext(i,j)= latsw + (j-1) * dy_ext
END DO
END DO
PRINT *,'LatSW = ',latsw,' LonSW = ',lonsw
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
WRITE(6,*) 'Filling 2D arrays from GRIB2 data.'
DO j=1,ny_ext
DO i=1,nx_ext
psfc_ext (i,j) = var_grb2d(i,j,PSFC)
trn_ext (i,j) = var_grb2d(i,j,GSFC)
wetcanp_ext(i,j) = -999.0
! wetcanp_ext(i,j) = var_grb2d(ii(i),j,4,1)*1.e-3 ! in meter
IF ( var_grb2d(1,1,SSFC) > 0 ) THEN
! Convert water equiv. of accum. snow depth (kg/m**2) to meters
! (where 1 meter liquid water is set equivqlent to 10 meters snow).
! 0.01 = 10. (m snow/m liquid) / (1000 kg/m**3)
snowdpth_ext(i,j) = 0.01 * var_grb2d(i,j,SSFC) ! in meters
ELSE
snowdpth_ext(i,j) = -999.
END IF
t_2m_ext(i,j) = var_grb2d(i,j,T2M)
qv_2m_ext(i,j) = var_grb2d(i,j,QV2M)
u_10m_ext(i,j) = var_grb2d(i,j,U10M)
v_10m_ext(i,j) = var_grb2d(i,j,V10M)
soiltyp_ext(i,j)= 0 ! We do not know the soil type
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
WRITE(6,*) 'Filling 3D arrays from GRIB2 data.'
DO k=1,nz_ext
DO j=1,ny_ext
DO i=1,nx_ext
p_ext (i,j,k) = var3dlvl(k) ! Pressure
hgt_ext(i,j,k) = var_grb3d(i,j,k,GPH)
u_ext (i,j,k) = var_grb3d(i,j,k,UWD) ! u wind (m/s)
v_ext (i,j,k) = var_grb3d(i,j,k,VWD) ! v wind (m/s)
t_ext (i,j,k) = var_grb3d(i,j,k,TMP) ! Temperature (K)
qc_ext (i,j,k) = var_grb3d(i,j,k,QCM)
qr_ext (i,j,k) = -999.
qi_ext (i,j,k) = -999.
qs_ext (i,j,k) = -999.
qh_ext (i,j,k) = -999.
END DO
END DO
END DO
WRITE(6,*) 'Computing saturated specific humidity.'
CALL getqvs(nx_ext,ny_ext,nz_ext, 1,nx_ext,1,ny_ext,1,nz_ext, &
p_ext, t_ext, qv_ext )
DO k=1,nz_ext
DO j=1,ny_ext
DO i=1,nx_ext
qv_ext(i,j,k) = 0.01*var_grb3d(i,j,k,RHD)*qv_ext(i,j,k)
END DO
END DO
END DO
WRITE(6,*) 'Filling 3D Soil arrays from GRIB2 data.'
tsoil_ext (:,:,:) = -999.0
qsoil_ext (:,:,:) = -999.0
IF(soilmodel_option == 1) THEN ! ARPS: two-layer force-restore model)
DO j = 1, ny_ext
DO i = 1, nx_ext
tsoil_ext(i,j,1) = 0.5*( var_grb3d(i,j,1,TSL) + var_grb3d(i,j,2,TSL) ) ! sfc temp.
tsoil_ext(i,j,2) = 0.5*( var_grb3d(i,j,3,TSL) + var_grb3d(i,j,4,TSL) )
qsoil_ext(i,j,1) = 0.5*( var_grb3d(i,j,1,QSL) + var_grb3d(i,j,2,QSL) ) ! sfc moisture
qsoil_ext(i,j,2) = 0.5*( var_grb3d(i,j,3,QSL) + var_grb3d(i,j,4,QSL) )
IF (tsoil_ext(i,j,1) < 100. .OR. tsoil_ext(i,j,2) < 100) THEN ! Over water?
tsoil_ext(i,j,1) = var_grb2d(i,j,TSFC)
tsoil_ext(i,j,2) = var_grb2d(i,j,TSFC)
qsoil_ext(i,j,1) = 1.0
qsoil_ext(i,j,2) = 1.0
END IF
END DO
END DO
ELSE ! ARPS: multi-layer OUSoil model
DO k = 1,nzsoil_ext
DO j = 1, ny_ext
DO i = 1, nx_ext
tsoil_ext(i,j,k) = var_grb3d(i,j,k,TSL)
qsoil_ext(i,j,k) = var_grb3d(i,j,k,QSL)
IF (tsoil_ext(i,j,k) < 100.) THEN ! over water?
tsoil_ext(i,j,k) = var_grb2d(i,j,TSFC)
qsoil_ext(i,j,k) = 1.0
END IF
END DO
END DO
END DO
END IF
DEALLOCATE(var_grb2d,var_grb3d, STAT = istatus)
istatus = 1
RETURN
END SUBROUTINE getncepgfs_grb2
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETMAM212_grb2 ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE getnam212_grb2(nx_ext,ny_ext,nz_ext,nzsoil_ext,nzsoilin_ext,& 1,1
gribfile,gribtime,grbflen,soildepth_ext, &
dx_ext,dy_ext, &
iproj_ext,scale_ext,trlon_ext,latnot_ext,latsw_ext,lonsw_ext, &
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext,soiltyp_ext, &
t_2m_ext, qv_2m_ext, u_10m_ext, v_10m_ext, rain_ext, &
istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Reads NAM 40km GRIB2 data (grid #212)
!
!-----------------------------------------------------------------------
!
! AUTHOR: Yunheng Wang
! 08/14/2008
!
! MODIFICATION HISTORY:
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! nx_ext
! ny_ext
! nz_ext
! nzsoil_ext
! nstyps_ext
! gribfile File name to be read
! gribtime
!
! OUTPUT:
!
! dx_ext
! dy_ext
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! lawsw_ext Latitude of the southwest corn of the domain
! lonsw_ext Longitude of the southwest corn of the domain
! hgt_ext height (m)
! p_ext pressure (Pascal)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsoil_ext Soil temperature
! qsoil_ext Soil moisture
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! T_2m_ext Temperature at 2m AGL
! qv_2m_ext Specific Humidity at 2m AGL
! U_10m_ext U at 10m AGL
! V_10m_ext V at 10m AGL
! rain_ext Accumulated rainfall contained in the data file
!
! istatus status indicator
!
! WORK ARRAYS:
!
! var_grb3d Arrays to store the GRIB 3-D variables:
! var_grb2d Arrays to store the GRIB 2-D variables:
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
CHARACTER (LEN=*), INTENT(IN) :: gribfile
CHARACTER (LEN=*), INTENT(IN) :: gribtime
INTEGER, INTENT(IN) :: grbflen
INTEGER, INTENT(IN) :: nx_ext,ny_ext,nz_ext,nzsoil_ext
INTEGER, INTENT(IN) :: nzsoilin_ext
REAL, INTENT(IN) :: soildepth_ext(nzsoilin_ext)
! INTEGER, PARAMETER :: nzsoilin_ext = 4
! REAL, PARAMETER :: soildepth_ext(nzsoilin_ext) = (/0.0, 0.1, 0.4, 1.0/)
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER, INTENT(OUT) :: iproj_ext
REAL, INTENT(OUT) :: scale_ext,trlon_ext
REAL, INTENT(OUT) :: latnot_ext(2)
REAL, INTENT(OUT) :: dx_ext,dy_ext
REAL, INTENT(OUT) :: latsw_ext, lonsw_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
REAL, INTENT(OUT) :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL, INTENT(OUT) :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL, INTENT(OUT) :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL, INTENT(OUT) :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL, INTENT(OUT) :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL, INTENT(OUT) :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL, INTENT(OUT) :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL, INTENT(OUT) :: tsoil_ext (nx_ext,ny_ext,nzsoil_ext)
REAL, INTENT(OUT) :: qsoil_ext (nx_ext,ny_ext,nzsoil_ext)
REAL, INTENT(OUT) :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL, INTENT(OUT) :: snowdpth_ext(nx_ext,ny_ext) ! Snow depth (m)
REAL, INTENT(OUT) :: trn_ext (nx_ext,ny_ext) ! External terrain (m)
REAL, INTENT(OUT) :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
REAL, INTENT(OUT) :: t_2m_ext (nx_ext,ny_ext)
REAL, INTENT(OUT) :: qv_2m_ext(nx_ext,ny_ext)
REAL, INTENT(OUT) :: u_10m_ext(nx_ext,ny_ext)
REAL, INTENT(OUT) :: v_10m_ext(nx_ext,ny_ext)
REAL, INTENT(OUT) :: rain_ext (nx_ext,ny_ext)
INTEGER, INTENT(OUT) :: soiltyp_ext(nx_ext,ny_ext)
INTEGER, INTENT(OUT) :: istatus
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:) ! GRIB 2D variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:) ! GRIB 3-D variables
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
INTEGER :: i,j,k,kk
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
! REAL :: latne ! Latitude of North East corner point
! REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
INTEGER :: uvearth
!-----------------------------------------------------------------------
!
! Definitions for grid #212 data
!
!-----------------------------------------------------------------------
INTEGER, PARAMETER :: n3dvs = 9
INTEGER, PARAMETER :: GPH = 1 ! Geopotential Height
INTEGER, PARAMETER :: UWD = 2 ! U-component of Wind
INTEGER, PARAMETER :: VWD = 3 ! V-component of Wind
INTEGER, PARAMETER :: TMP = 4 ! Temperature
INTEGER, PARAMETER :: SQV = 5 ! Specific Humidity
INTEGER, PARAMETER :: WWD = 6 ! Pressure vertical velocity(Pa/s)
INTEGER, PARAMETER :: QCM = 7 ! Cloud Mixing Ratio
INTEGER, PARAMETER :: TSL = 8 ! Soil temperature
INTEGER, PARAMETER :: QSL = 9 ! Soil Moisture
INTEGER, PARAMETER :: n2dvs = 13
INTEGER, PARAMETER :: TSFC = 1 ! Temperature at ground
INTEGER, PARAMETER :: PSFC = 2 ! Pressure at ground
INTEGER, PARAMETER :: GSFC = 3 ! Geopotential Height at ground
INTEGER, PARAMETER :: SSFC = 4 ! Snow depth at ground (kg m-2)
INTEGER, PARAMETER :: RAIN = 5 ! Total Precipitation (kg m-2)
INTEGER, PARAMETER :: LAND = 6 ! Land Cover (1=land, 0=sea)
INTEGER, PARAMETER :: ICEC = 7 ! Ice Cover (Proportion)
INTEGER, PARAMETER :: SOIL = 8 ! Soil Type
INTEGER, PARAMETER :: T2M = 9 ! Temperature at 2m above ground
INTEGER, PARAMETER :: QV2M = 10 ! Specific Humidity at 2m above ground
INTEGER, PARAMETER :: U10M = 11 ! U-Component of Wind at 10m above ground
INTEGER, PARAMETER :: V10M = 12 ! V-Component of Wind at 10m above ground
INTEGER, PARAMETER :: PMSL = 13 ! Pressure Reduced to MSL
INTEGER, PARAMETER :: totvs = n2dvs + n3dvs
INTEGER, PARAMETER :: varids(4,totvs) = RESHAPE( & ! order is IMPORTANT
! Discipline Category Parameter Layer/Level_Type
(/ 0, 3, 5, 100, & ! 1 GPH
0, 2, 2, 100, & ! 2 UWD
0, 2, 3, 100, & ! 3 VWD
0, 0, 0, 100, & ! 4 TMP
0, 1, 0, 100, & ! 5 SQV
0, 2, 8, 100, & ! 6 WWD
0, 1, 22, 100, & ! 7 QCM
2, 0, 2, 106, & ! 8 TSL
2, 0, 192, 106, & ! 9 QSL
0, 0, 0, 1, & ! 1 - TSFC
0, 3, 0, 1, & ! 2 - PSFC
0, 3, 5, 1, & ! 3 - GSFC
0, 1, 11, 1, & ! 4 - SSFC
0, 1, 8, 1, & ! 5 - RAIN
2, 0, 0, 1, & ! 6 - LAND
10, 2, 0, 1, & ! 7 - ICEC
2, 3, 0, 1, & ! 8 - SOIL
0, 0, 0, 103, & ! 9 - T2M
0, 1, 0, 103, & ! 10 - QV2M
0, 2, 2, 103, & ! 11 - U10M
0, 2, 3, 103, & ! 12 - U10M
0, 3, 1, 101 & ! 13 - PMSL
/), (/ 4, totvs /) )
REAL, PARAMETER :: var3dlvl(39) = (/ 100000, 97500, 95000, 92500, 90000, 87500, &
85000, 82500, 80000, 77500, 75000, 72500, 70000, 67500, 65000, 62500, &
60000, 57500, 55000, 52500, 50000, 47500, 45000, 42500, 40000, 37500, &
35000, 32500, 30000, 27500, 25000, 22500, 20000, 17500, 15000, 12500, &
10000, 7500, 5000 /)
INTEGER, PARAMETER :: var3dindx(totvs) = (/ GPH, UWD, VWD, TMP, SQV, &
WWD, QCM, TSL, QSL, (0, i = n3dvs+1,totvs) /)
INTEGER, PARAMETER :: var2dindx(totvs) = (/ (0, i = 1, n3dvs), &
TSFC, PSFC, GSFC, SSFC, RAIN, LAND, ICEC, SOIL, &
T2M, QV2M, U10M, V10M, PMSL/)
REAL, PARAMETER :: var2dlvl(n2dvs) = (/ 0.,0.,0.,0.,0.,0.,0.,0., &
2.,2.,10.,10.,0. /)
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
!
!-----------------------------------------------------------------------
!
! RDNMCGRB2 reads NMC GRIB2 data
!
!-----------------------------------------------------------------------
!
ALLOCATE(var_grb2d(nx_ext,ny_ext,n2dvs), STAT = istatus)
ALLOCATE(var_grb3d(nx_ext,ny_ext,nz_ext,n3dvs), STAT = istatus)
var_grb2d = -999.0
var_grb3d = 0.0
CALL rdnmcgrb2(nx_ext,ny_ext,nz_ext,gribfile,grbflen, gribtime, &
iproj_ext,ni_grb,nj_grb,di_grb,dj_grb, &
latsw,lonsw,lattru1,lattru2,lontrue,uvearth, &
n2dvs, n3dvs, totvs, nzsoilin_ext, &
varids, var2dindx, var3dindx, var2dlvl, var3dlvl, &
100*soildepth_ext, &
var_grb2d, var_grb3d, lvldbg, &
istatus)
IF (istatus /= 0) RETURN
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
dx_ext = di_grb
dy_ext = dj_grb
PRINT *,'LatSW = ',latsw,' LonSW = ',lonsw
latsw_ext = latsw
lonsw_ext = lonsw
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
WRITE(6,*) 'Filling 2D arrays from GRIB2 data.'
DO j=1,ny_ext
DO i=1,nx_ext
psfc_ext (i,j) = var_grb2d(i,j,PSFC)
trn_ext (i,j) = var_grb2d(i,j,GSFC)
snowdpth_ext(i,j) = var_grb2d(i,j,SSFC)
wetcanp_ext(i,j) = -999.0
t_2m_ext (i,j) = var_grb2d(i,j,T2M)
qv_2m_ext(i,j) = var_grb2d(i,j,QV2M)
u_10m_ext(i,j) = var_grb2d(i,j,U10M)
v_10m_ext(i,j) = var_grb2d(i,j,V10M)
rain_ext (i,j) = var_grb2d(i,j,RAIN)
!
! To make sure SOILTYPE and LANDCOVER consistent and
! convert SOILTYPE from to ARPS.
!
IF (var_grb2d(i,j,LAND) < 0.5) THEN ! Water
soiltyp_ext(i,j)= 13
ELSE IF (var_grb2d(i,j,ICEC) > 0.5) THEN ! Ice
soiltyp_ext(i,j) = 12
ELSE IF (var_grb2d(i,j,SOIL) < 1. .OR. var_grb2d(i,j,SOIL) > 11.) THEN
WRITE(6,'(1x,2(a,I4),a,I2,a,F3.0)') &
'WARNING: Soil type is unknown. var_grb2d(',i,',',j, &
',SOIL=',SOIL,') = ',var_grb2d(i,j,SOIL)
ELSE
soiltyp_ext(i,j) = NINT(var_grb2d(i,j,SOIL))
END IF
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
WRITE(6,*) 'Filling 3D arrays from GRIB2 data.'
DO k=1,nz_ext
DO j=1,ny_ext
DO i=1,nx_ext
p_ext (i,j,k) = var3dlvl(k) ! Pressure
hgt_ext(i,j,k) = var_grb3d(i,j,k,GPH)
u_ext (i,j,k) = var_grb3d(i,j,k,UWD) ! u wind (m/s)
v_ext (i,j,k) = var_grb3d(i,j,k,VWD) ! v wind (m/s)
t_ext (i,j,k) = var_grb3d(i,j,k,TMP) ! Temperature (K)
qv_ext (i,j,k) = var_grb3d(i,j,k,SQV) ! Specific humidity (kg kg-1)
qc_ext (i,j,k) = var_grb3d(i,j,k,QCM)
qr_ext (i,j,k) = -999.
qi_ext (i,j,k) = -999.
qs_ext (i,j,k) = -999.
qh_ext (i,j,k) = -999.
END DO
END DO
END DO
WRITE(6,*) 'Filling 3D Soil arrays from GRIB2 data.'
tsoil_ext (:,:,:) = -999.0
qsoil_ext (:,:,:) = -999.0
IF(soilmodel_option == 1) THEN ! ARPS: two-layer force-restore model)
DO j = 1, ny_ext
DO i = 1, nx_ext
tsoil_ext(i,j,1) = 0.5*( var_grb3d(i,j,1,TSL) + var_grb3d(i,j,2,TSL) ) ! sfc temp.
tsoil_ext(i,j,2) = 0.5*( var_grb3d(i,j,3,TSL) + var_grb3d(i,j,4,TSL) )
qsoil_ext(i,j,1) = 0.5*( var_grb3d(i,j,1,QSL) + var_grb3d(i,j,2,QSL) ) ! sfc moisture
qsoil_ext(i,j,2) = 0.5*( var_grb3d(i,j,3,QSL) + var_grb3d(i,j,4,QSL) )
IF (var_grb2d(i,j,LAND) < .5 ) THEN ! Over water?
tsoil_ext(i,j,1) = var_grb2d(i,j,TSFC)
tsoil_ext(i,j,2) = var_grb2d(i,j,TSFC)
qsoil_ext(i,j,1) = 1.0
qsoil_ext(i,j,2) = 1.0
END IF
END DO
END DO
ELSE ! ARPS: multi-layer OUSoil model
DO j = 1, ny_ext
DO i = 1, nx_ext
tsoil_ext(i,j,1) = var_grb2d(i,j,TSFC)
qsoil_ext(i,j,1) = var_grb3d(i,j,1,QSL)
END DO
END DO
DO k = 2,nzsoil_ext
DO j = 1, ny_ext
DO i = 1, nx_ext
tsoil_ext(i,j,k) = var_grb3d(i,j,k-1,TSL)
qsoil_ext(i,j,k) = var_grb3d(i,j,k-1,QSL)
IF (var_grb2d(i,j,LAND) < .5) THEN ! over water?
tsoil_ext(i,j,k) = var_grb2d(i,j,TSFC)
qsoil_ext(i,j,k) = 1.0
END IF
END DO
END DO
END DO
END IF
DEALLOCATE(var_grb2d,var_grb3d, STAT = istatus)
istatus = 1
RETURN
END SUBROUTINE getnam212_grb2
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE GETMAM218_grb2 ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE getnam218_grb2(notiles,nx_ext,ny_ext,nz_ext,nzsoil_ext, & 1,1
nzsoilin_ext,nxgrb,nygrb,tile_x,tile_y, &
dir_extd,gribfile,gribtime,grbflen, &
soildepth_ext,dx_ext,dy_ext, &
iproj_ext,scale_ext,trlon_ext,latnot_ext,latsw_ext,lonsw_ext,&
p_ext,hgt_ext,t_ext,qv_ext,u_ext,v_ext, &
qc_ext,qr_ext,qi_ext,qs_ext,qh_ext, &
tsoil_ext,qsoil_ext,wetcanp_ext, &
snowdpth_ext,trn_ext,psfc_ext,soiltyp_ext, &
t_2m_ext, qv_2m_ext, u_10m_ext, v_10m_ext, rain_ext, &
istatus)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Reads NAM 12km GRIB2 data (grid #218)
!
!-----------------------------------------------------------------------
!
! AUTHOR: Yunheng Wang
! 08/21/2008
!
! MODIFICATION HISTORY:
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! nx_ext
! ny_ext
! nz_ext
! nzsoil_ext
! nstyps_ext
! gribfile File name to be read
! gribtime
!
! OUTPUT:
!
! dx_ext
! dy_ext
! iproj_ext Map projection number of external data
! scale_ext Scale factor of external data
! trlon_ext True longitude of external data (degrees E)
! latnot_ext(2) True latitude(s) of external data (degrees N)
! lawsw_ext Latitude of the southwest corn of the domain
! lonsw_ext Longitude of the southwest corn of the domain
! hgt_ext height (m)
! p_ext pressure (Pascal)
! t_ext temperature (K)
! qv_ext specific humidity (kg/kg)
! u_ext u wind component (m/s)
! v_ext v wind component (m/s)
! qc_ext Cloud water mixing ratio (kg/kg)
! qr_ext Rain water mixing ratio (kg/kg)
! qi_ext Ice mixing ratio (kg/kg)
! qs_ext Snow mixing ratio (kg/kg)
! qh_ext Hail mixing ratio (kg/kg)
!
! tsoil_ext Soil temperature
! qsoil_ext Soil moisture
! wetcanp_ext Water content on canopy
!
! trn_ext External terrain (m)
! psfc_ext Surface pressure (Pa)
!
! T_2m_ext Temperature at 2m AGL
! qv_2m_ext Specific Humidity at 2m AGL
! U_10m_ext U at 10m AGL
! V_10m_ext V at 10m AGL
! rain_ext Accumulated rainfall contained in the data file
!
! istatus status indicator
!
! WORK ARRAYS:
!
! var_grb3d Arrays to store the GRIB 3-D variables:
! var_grb2d Arrays to store the GRIB 2-D variables:
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
CHARACTER (LEN=*), INTENT(IN) :: dir_extd
CHARACTER (LEN=*), INTENT(IN) :: gribfile
CHARACTER (LEN=*), INTENT(IN) :: gribtime
INTEGER, INTENT(IN) :: grbflen
INTEGER, INTENT(IN) :: notiles
INTEGER, INTENT(IN) :: tile_x, tile_y
INTEGER, INTENT(IN) :: nxgrb, nygrb
INTEGER, INTENT(IN) :: nx_ext,ny_ext,nz_ext,nzsoil_ext
INTEGER, INTENT(IN) :: nzsoilin_ext
REAL, INTENT(IN) :: soildepth_ext(nzsoilin_ext)
! INTEGER, PARAMETER :: nzsoilin_ext = 4
! REAL, PARAMETER :: soildepth_ext(nzsoilin_ext) = (/0.0, 0.1, 0.4, 1.0/)
!
!-----------------------------------------------------------------------
!
! External grid variables
!
!-----------------------------------------------------------------------
!
INTEGER, INTENT(OUT) :: iproj_ext
REAL, INTENT(OUT) :: scale_ext,trlon_ext
REAL, INTENT(OUT) :: latnot_ext(2)
REAL, INTENT(OUT) :: dx_ext,dy_ext
REAL, INTENT(OUT) :: latsw_ext, lonsw_ext
!
!-----------------------------------------------------------------------
!
! Output external variable arrays
!
!-----------------------------------------------------------------------
!
REAL, INTENT(OUT) :: p_ext (nx_ext,ny_ext,nz_ext) ! Pressure (Pascals)
REAL, INTENT(OUT) :: hgt_ext(nx_ext,ny_ext,nz_ext) ! Height (m)
REAL, INTENT(OUT) :: t_ext (nx_ext,ny_ext,nz_ext) ! Temperature (K)
REAL, INTENT(OUT) :: qv_ext (nx_ext,ny_ext,nz_ext) ! Specific humidity (kg/kg)
REAL, INTENT(OUT) :: u_ext (nx_ext,ny_ext,nz_ext) ! Eastward wind component
REAL, INTENT(OUT) :: v_ext (nx_ext,ny_ext,nz_ext) ! Northward wind component
REAL, INTENT(OUT) :: qc_ext (nx_ext,ny_ext,nz_ext) ! Cloud H2O mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qr_ext (nx_ext,ny_ext,nz_ext) ! Rain H2O mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qi_ext (nx_ext,ny_ext,nz_ext) ! Ice mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qs_ext (nx_ext,ny_ext,nz_ext) ! Snow mixing ratio (kg/kg)
REAL, INTENT(OUT) :: qh_ext (nx_ext,ny_ext,nz_ext) ! Hail mixing ratio (kg/kg)
REAL, INTENT(OUT) :: tsoil_ext (nx_ext,ny_ext,nzsoil_ext)
REAL, INTENT(OUT) :: qsoil_ext (nx_ext,ny_ext,nzsoil_ext)
REAL, INTENT(OUT) :: wetcanp_ext(nx_ext,ny_ext) ! Canopy water amount
REAL, INTENT(OUT) :: snowdpth_ext(nx_ext,ny_ext) ! Snow depth (m)
REAL, INTENT(OUT) :: trn_ext (nx_ext,ny_ext) ! External terrain (m)
REAL, INTENT(OUT) :: psfc_ext (nx_ext,ny_ext) ! Surface pressure (Pa)
REAL, INTENT(OUT) :: t_2m_ext (nx_ext,ny_ext)
REAL, INTENT(OUT) :: qv_2m_ext(nx_ext,ny_ext)
REAL, INTENT(OUT) :: u_10m_ext(nx_ext,ny_ext)
REAL, INTENT(OUT) :: v_10m_ext(nx_ext,ny_ext)
REAL, INTENT(OUT) :: rain_ext (nx_ext,ny_ext)
INTEGER, INTENT(OUT) :: soiltyp_ext(nx_ext,ny_ext)
INTEGER, INTENT(OUT) :: istatus
!
!-----------------------------------------------------------------------
!
! Work arrays for storing grib data
!
!-----------------------------------------------------------------------
!
REAL, ALLOCATABLE :: var_grb2d(:,:,:) ! GRIB 2D variables
REAL, ALLOCATABLE :: var_grb3d(:,:,:,:) ! GRIB 3-D variables
!-----------------------------------------------------------------------
!
! Include files
!
!-----------------------------------------------------------------------
!
INCLUDE 'globcst.inc'
INCLUDE 'phycst.inc'
!
!-----------------------------------------------------------------------
!
! GRIB grid information
!
!-----------------------------------------------------------------------
!
INTEGER :: ni_grb ! Number of points along x-axis
INTEGER :: nj_grb ! Number of points along y-axis
REAL :: di_grb ! x-direction increment or grid length
REAL :: dj_grb ! y-direction increment or grid length
REAL :: latsw ! Latitude of South West corner point
REAL :: lonsw ! Longitude of South West corner point
! REAL :: latne ! Latitude of North East corner point
! REAL :: lonne ! Longitude of North East corner point
REAL :: lattru1 ! Latitude (1st) at which projection is true
REAL :: lattru2 ! Latitude (2nd) at which projection is true
REAL :: lontrue ! Longitude at which projection is true
INTEGER :: uvearth
INTEGER :: i,j,k,kk
!-----------------------------------------------------------------------
!
! Definitions for grid #218 data
!
!-----------------------------------------------------------------------
INTEGER, PARAMETER :: n3dvs = 9
INTEGER, PARAMETER :: GPH = 1 ! Geopotential Height
INTEGER, PARAMETER :: UWD = 2 ! U-component of Wind
INTEGER, PARAMETER :: VWD = 3 ! V-component of Wind
INTEGER, PARAMETER :: TMP = 4 ! Temperature
INTEGER, PARAMETER :: SRH = 5 ! Relative Humidity
INTEGER, PARAMETER :: WWD = 6 ! Pressure vertical velocity(Pa/s)
INTEGER, PARAMETER :: QCM = 7 ! Cloud Mixing Ratio
INTEGER, PARAMETER :: TSL = 8 ! Soil temperature
INTEGER, PARAMETER :: QSL = 9 ! Soil Moisture
INTEGER, PARAMETER :: n2dvs = 13
INTEGER, PARAMETER :: TSFC = 1 ! Temperature at ground
INTEGER, PARAMETER :: PSFC = 2 ! Pressure at ground
INTEGER, PARAMETER :: GSFC = 3 ! Geopotential Height at ground
INTEGER, PARAMETER :: SSFC = 4 ! Snow depth at ground (kg m-2)
INTEGER, PARAMETER :: RAIN = 5 ! Total Precipitation (kg m-2)
INTEGER, PARAMETER :: LAND = 6 ! Land Cover (1=land, 0=sea)
INTEGER, PARAMETER :: ICEC = 7 ! Ice Cover (Proportion)
INTEGER, PARAMETER :: SOIL = 8 ! Soil Type
INTEGER, PARAMETER :: T2M = 9 ! Temperature at 2m above ground
INTEGER, PARAMETER :: QV2M = 10 ! Specific Humidity at 2m above ground
INTEGER, PARAMETER :: U10M = 11 ! U-Component of Wind at 10m above ground
INTEGER, PARAMETER :: V10M = 12 ! V-Component of Wind at 10m above ground
INTEGER, PARAMETER :: PMSL = 13 ! Pressure Reduced to MSL
INTEGER, PARAMETER :: totvs = n2dvs + n3dvs
INTEGER, PARAMETER :: varids(4,totvs) = RESHAPE( & ! order is IMPORTANT
! Discipline Category Parameter Layer/Level_Type
(/ 0, 3, 5, 100, & ! 1 GPH
0, 2, 2, 100, & ! 2 UWD
0, 2, 3, 100, & ! 3 VWD
0, 0, 0, 100, & ! 4 TMP
0, 1, 1, 100, & ! 5 SRH
0, 2, 8, 100, & ! 6 WWD
0, 1, 22, 100, & ! 7 QCM
2, 0, 2, 106, & ! 8 TSL
2, 0, 192, 106, & ! 9 QSL
0, 0, 0, 1, & ! 1 - TSFC
0, 3, 0, 1, & ! 2 - PSFC
0, 3, 5, 1, & ! 3 - GSFC
0, 1, 11, 1, & ! 4 - SSFC
0, 1, 8, 1, & ! 5 - RAIN
2, 0, 0, 1, & ! 6 - LAND
10, 2, 0, 1, & ! 7 - ICEC
2, 3, 0, 1, & ! 8 - SOIL
0, 0, 0, 103, & ! 9 - T2M
0, 1, 0, 103, & ! 10 - QV2M
0, 2, 2, 103, & ! 11 - U10M
0, 2, 3, 103, & ! 12 - U10M
0, 3, 1, 101 & ! 13 - PMSL
/), (/ 4, totvs /) )
REAL, PARAMETER :: var3dlvl(39) = (/ 100000, 97500, 95000, 92500, 90000, 87500, &
85000, 82500, 80000, 77500, 75000, 72500, 70000, 67500, 65000, 62500, &
60000, 57500, 55000, 52500, 50000, 47500, 45000, 42500, 40000, 37500, &
35000, 32500, 30000, 27500, 25000, 22500, 20000, 17500, 15000, 12500, &
10000, 7500, 5000 /)
INTEGER, PARAMETER :: var3dindx(totvs) = (/ GPH, UWD, VWD, TMP, SRH, &
WWD, QCM, TSL, QSL, (0, i = n3dvs+1,totvs) /)
INTEGER, PARAMETER :: var2dindx(totvs) = (/ (0, i = 1, n3dvs), &
TSFC, PSFC, GSFC, SSFC, RAIN, LAND, ICEC, SOIL, &
T2M, QV2M, U10M, V10M, PMSL/)
REAL, PARAMETER :: var2dlvl(n2dvs) = (/ 0.,0.,0.,0.,0.,0.,0.,0., &
2.,2.,10.,10.,0. /)
!
!-----------------------------------------------------------------------
!
! Misc internal variables
!
!-----------------------------------------------------------------------
!
CHARACTER(LEN=256) :: grib2file
INTEGER :: grb2flen
INTEGER :: offset_x, offset_y
INTEGER, PARAMETER :: nxmax = 69, nymax = 72
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
!
!-----------------------------------------------------------------------
!
! RDNMCGRB2 reads NMC GRIB2 data
!
!-----------------------------------------------------------------------
!
ALLOCATE(var_grb2d(nxgrb,nygrb,n2dvs), STAT = istatus)
ALLOCATE(var_grb3d(nxgrb,nygrb,nz_ext,n3dvs), STAT = istatus)
var_grb2d = -999.0
var_grb3d = 0.0
WRITE(grib2file,'(2a)') TRIM(dir_extd),TRIM(gribfile)
grb2flen = LEN_TRIM(grib2file)
CALL rdnmcgrb2(nxgrb,nygrb,nz_ext,grib2file,grb2flen, gribtime, &
iproj_ext,ni_grb,nj_grb,di_grb,dj_grb, &
latsw,lonsw,lattru1,lattru2,lontrue,uvearth, &
n2dvs, n3dvs, totvs, nzsoilin_ext, &
varids, var2dindx, var3dindx, var2dlvl, var3dlvl, &
100*soildepth_ext, &
var_grb2d, var_grb3d, lvldbg, &
istatus)
IF (istatus /= 0) RETURN
scale_ext = 1.0
latnot_ext(1) = lattru1
latnot_ext(2) = lattru2
trlon_ext = lontrue
dx_ext = di_grb
dy_ext = dj_grb
PRINT *,'LatSW = ',latsw,' LonSW = ',lonsw
latsw_ext = latsw
lonsw_ext = lonsw
offset_x = (tile_x-1)*nxmax
offset_y = (tile_y-1)*nymax
!
!-----------------------------------------------------------------------
!
! Retrieve 2-D variables
!
!-----------------------------------------------------------------------
!
WRITE(6,*) 'Filling 2D arrays from GRIB2 data.'
DO j=1,nygrb
DO i=1,nxgrb
psfc_ext (offset_x+i,offset_y+j) = var_grb2d(i,j,PSFC)
trn_ext (offset_x+i,offset_y+j) = var_grb2d(i,j,GSFC)
snowdpth_ext(offset_x+i,offset_y+j) = var_grb2d(i,j,SSFC)
wetcanp_ext (offset_x+i,offset_y+j) = -999.0
t_2m_ext (offset_x+i,offset_y+j) = var_grb2d(i,j,T2M)
qv_2m_ext(offset_x+i,offset_y+j) = var_grb2d(i,j,QV2M)
u_10m_ext(offset_x+i,offset_y+j) = var_grb2d(i,j,U10M)
v_10m_ext(offset_x+i,offset_y+j) = var_grb2d(i,j,V10M)
rain_ext (offset_x+i,offset_y+j) = var_grb2d(i,j,RAIN)
!
! To make sure SOILTYPE and LANDCOVER consistent and
! convert SOILTYPE from to ARPS.
!
IF (var_grb2d(i,j,LAND) < 0.5) THEN ! Water
soiltyp_ext(offset_x+i,offset_y+j)= 13
ELSE IF (var_grb2d(i,j,ICEC) > 0.5) THEN ! Ice
soiltyp_ext(offset_x+i,offset_y+j) = 12
ELSE IF (var_grb2d(i,j,SOIL) < 1. .OR. var_grb2d(i,j,SOIL) > 11.) THEN
WRITE(6,'(1x,2(a,I4),a,I2,a,F3.0)') &
'WARNING: Soil type is unknown. var_grb2d(',offset_x+i,',',offset_y+j, &
',SOIL=',SOIL,') = ',var_grb2d(i,j,SOIL)
ELSE
soiltyp_ext(offset_x+i,offset_y+j) = NINT(var_grb2d(i,j,SOIL))
END IF
END DO
END DO
!
!-----------------------------------------------------------------------
!
! Retrieve 3-D variables
!
!-----------------------------------------------------------------------
!
WRITE(6,*) 'Filling 3D arrays from GRIB2 data.'
DO k=1,nz_ext
DO j=1,nygrb
DO i=1,nxgrb
p_ext (offset_x+i,offset_y+j,k) = var3dlvl(k) ! Pressure
hgt_ext(offset_x+i,offset_y+j,k) = var_grb3d(i,j,k,GPH)
u_ext (offset_x+i,offset_y+j,k) = var_grb3d(i,j,k,UWD) ! u wind (m/s)
v_ext (offset_x+i,offset_y+j,k) = var_grb3d(i,j,k,VWD) ! v wind (m/s)
t_ext (offset_x+i,offset_y+j,k) = var_grb3d(i,j,k,TMP) ! Temperature (K)
qv_ext (offset_x+i,offset_y+j,k) = var_grb3d(i,j,k,SRH) ! Relative Humidity (%)
qc_ext (offset_x+i,offset_y+j,k) = var_grb3d(i,j,k,QCM)
qr_ext (offset_x+i,offset_y+j,k) = -999.
qi_ext (offset_x+i,offset_y+j,k) = -999.
qs_ext (offset_x+i,offset_y+j,k) = -999.
qh_ext (offset_x+i,offset_y+j,k) = -999.
END DO
END DO
END DO
WRITE(6,*) 'Filling 3D Soil arrays from GRIB2 data.'
DO k = 1,nzsoil_ext
DO j = 1, nygrb
DO i = 1, nxgrb
tsoil_ext (offset_x+i,offset_y+j,k) = -999.0
qsoil_ext (offset_x+i,offset_y+j,k) = -999.0
END DO
END DO
END DO
IF(soilmodel_option == 1) THEN ! ARPS: two-layer force-restore model)
DO j = 1, nygrb
DO i = 1, nxgrb
! sfc temp.
tsoil_ext(offset_x+i,offset_y+j,1) = 0.5*( var_grb3d(i,j,1,TSL) + var_grb3d(i,j,2,TSL) )
tsoil_ext(offset_x+i,offset_y+j,2) = 0.5*( var_grb3d(i,j,3,TSL) + var_grb3d(i,j,4,TSL) )
! sfc moisture
qsoil_ext(offset_x+i,offset_y+j,1) = 0.5*( var_grb3d(i,j,1,QSL) + var_grb3d(i,j,2,QSL) )
qsoil_ext(offset_x+i,offset_y+j,2) = 0.5*( var_grb3d(i,j,3,QSL) + var_grb3d(i,j,4,QSL) )
IF (var_grb2d(i,j,LAND) < .5 ) THEN ! Over water?
tsoil_ext(offset_x+i,offset_y+j,1) = var_grb2d(i,j,TSFC)
tsoil_ext(offset_x+i,offset_y+j,2) = var_grb2d(i,j,TSFC)
qsoil_ext(offset_x+i,offset_y+j,1) = 1.0
qsoil_ext(offset_x+i,offset_y+j,2) = 1.0
END IF
END DO
END DO
ELSE ! ARPS: multi-layer OUSoil model
DO j = 1, nygrb
DO i = 1, nxgrb
tsoil_ext(offset_x+i,offset_y+j,1) = var_grb2d(i,j,TSFC)
qsoil_ext(offset_x+i,offset_y+j,1) = var_grb3d(i,j,1,QSL)
END DO
END DO
DO k = 2,nzsoil_ext
DO j = 1, nygrb
DO i = 1, nxgrb
tsoil_ext(offset_x+i,offset_y+j,k) = var_grb3d(i,j,k-1,TSL)
qsoil_ext(offset_x+i,offset_y+j,k) = var_grb3d(i,j,k-1,QSL)
IF (var_grb2d(i,j,LAND) < .5) THEN ! over water?
tsoil_ext(offset_x+i,offset_y+j,k) = var_grb2d(i,j,TSFC)
qsoil_ext(offset_x+i,offset_y+j,k) = 1.0
END IF
END DO
END DO
END DO
END IF
DEALLOCATE(var_grb2d,var_grb3d, STAT = istatus)
istatus = 1
RETURN
END SUBROUTINE getnam218_grb2
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE getgrbdims ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE getgrbdims(dir_extd,extdname,extdopt,grbfmt,extdfmt, & 2,11
extdinit,extdfcst,ni_grb,nj_grb,iret)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! This subroutine extracts dimension size from either GRIB file or GRIB2 file.
!
!-----------------------------------------------------------------------
!
! AUTHOR: Yunheng Wang
! 08/17/2007 Initialized.
!
! MODIFICATIONS:
!
!-----------------------------------------------------------------------
!
! INPUT:
!
! dir_extd GRIB file directory
! extdname Use to construct the GRIB file name
! extdinit
! extdfcst
! grbfmt GRIB or GRIB2
! extdopt
! extdfmt
!
! OUTPUT:
!
! ni_grb Grid size in west-east direction
! nj_grb Grid size in south-north direction
!
! iret Return flag
!
!-----------------------------------------------------------------------
!
! Variable Declarations.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
CHARACTER(LEN=*) :: dir_extd
CHARACTER(LEN=*), INTENT(IN) :: extdname
CHARACTER(LEN=19),INTENT(IN) :: extdinit
CHARACTER(LEN=9) :: extdfcst
INTEGER, INTENT(IN) :: extdopt
INTEGER, INTENT(IN) :: grbfmt
INTEGER, INTENT(IN) :: extdfmt
INTEGER, INTENT(OUT) :: ni_grb ! Number of points along x-axis
INTEGER, INTENT(OUT) :: nj_grb ! Number of points along y-axis
INTEGER, INTENT(OUT) :: iret ! Return flag
INCLUDE 'gribcst.inc'
INCLUDE 'mp.inc'
!
!-----------------------------------------------------------------------
!
! Misc. Local variables
!
!-----------------------------------------------------------------------
!
CHARACTER(LEN=256) :: gribfile
CHARACTER(LEN=14) :: gribtime
INTEGER :: lenrun, grbflen
CHARACTER (LEN=256) :: gribfile_new
INTEGER :: grbflen_new
INTEGER :: l, i
LOGICAL :: fexist
INTEGER :: iyr,imo,iday,ihr,imin,isec
INTEGER :: ifhr
LOGICAL, PARAMETER :: verbose = .FALSE.
CHARACTER(LEN=11), PARAMETER :: cmd = 'getgrbdims: '
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
!-----------------------------------------------------------------------
!
! Construct the grib file name
!
!-----------------------------------------------------------------------
READ (extdinit,'(i4,1x,i2,1x,i2,1x,i2,1x,i2,1x,i2)') &
iyr,imo,iday,ihr,imin,isec
ifhr = 0
IF(extdfcst == ' ') extdfcst='000:00:00'
READ(extdfcst,'(i3)') ifhr
WRITE (gribtime,'(i4.4,i2.2,i2.2,i2.2,a1,i2.2)') &
iyr,imo,iday,ihr,'f',ifhr
lenrun = LEN(dir_extd)
grbflen = LEN_TRIM(dir_extd)
IF( grbflen == 0 .OR. dir_extd(1:grbflen) == ' ' ) THEN
dir_extd = '.'
grbflen=1
END IF
IF( dir_extd(grbflen:grbflen) /= '/' .AND. grbflen < lenrun ) THEN
grbflen = grbflen+1
dir_extd(grbflen:grbflen) = '/'
END IF
gribfile = dir_extd(1:grbflen)//TRIM(extdname)//'.'//TRIM(gribtime)
grbflen = LEN_TRIM(gribfile)
IF (extdopt == 16) THEN ! GRID#218
IF (extdfmt == 0) THEN
gribfile = ' '
IF (grbfmt == 2) THEN
WRITE(gribfile,'(a,2(a,I2.2),a)') &
TRIM(dir_extd)//TRIM(extdname),'.t',ihr,'z.awip3d',ifhr,'.tm00.grib2'
ELSE
WRITE(gribfile,'(a,2(a,I2.2))') &
TRIM(dir_extd)//TRIM(extdname),'.t',ihr,'z.awip218',ifhr
END IF
grbflen = LEN_TRIM(gribfile)
END IF
END IF
IF (myproc == 0) THEN
!
!-----------------------------------------------------------------------
!
! Check the exist status of the file
!
!-----------------------------------------------------------------------
!
INQUIRE(FILE=gribfile(1:grbflen), EXIST = fexist )
IF( fexist ) THEN
gribfile_new = gribfile
grbflen_new = grbflen
GO TO 200
ENDIF
INQUIRE(FILE=trim(gribfile(1:grbflen))//'.Z', EXIST = fexist )
IF( fexist ) THEN
CALL unixcmd( 'cp '//trim(gribfile(1:grbflen))//'.Z tem_ext_file.Z' )
INQUIRE(FILE='tem_ext_file', EXIST = fexist )
IF( fexist ) call unixcmd( '/bin/rm tem_ext_file' )
CALL uncmprs( 'tem_ext_file.Z' )
gribfile_new = 'tem_ext_file'
grbflen_new = 12
GO TO 200
END IF
INQUIRE(FILE=trim(gribfile(1:grbflen))//'.gz', EXIST = fexist )
IF( fexist ) THEN
CALL unixcmd( 'cp '//trim(gribfile(1:grbflen))//'.gz tem_ext_file.gz' )
INQUIRE(FILE='tem_ext_file', EXIST = fexist )
IF( fexist ) call unixcmd( '/bin/rm tem_ext_file' )
CALL uncmprs( 'tem_ext_file.gz' )
gribfile_new = 'tem_ext_file'
grbflen_new = 12
GO TO 200
END IF
WRITE(6,'(/1x,a/,a/)') 'GRIB file '//gribfile(1:grbflen)//' or its',&
' compressed version not found. Program stopped in GETGRBDIMS.'
iret = -2
GOTO 999
200 CONTINUE
IF (grbfmt == 2) THEN
CALL rdgrb2dims(gribfile_new,grbflen_new,ni_grb,nj_grb,iret)
ELSE
CALL rdgrbdims (gribfile_new,grbflen_new,ni_grb,nj_grb,iret)
END IF
END IF ! IF (myproc == 0)
999 CONTINUE
CALL mpupdatei(ni_grb,1)
CALL mpupdatei(nj_grb,1)
CALL mpupdatei(iret, 1)
RETURN
END SUBROUTINE getgrbdims