[ARPSSUPPORT] NETCDF

[Yunheng Wang]

Marwan,

FYI, IDV only supports ARPS data set in Lambert map projection. Your 
data set, although good, does not contain a map project. So it is not 
supported in IDV.

Yunheng.


----- Original Message -----
*From:* Marwan Katurji <mka94 at student.canterbury.ac.nz>
*To:* "Kevin W. Thomas" <kwthomas at wizard.caps.ou.edu>, 
arpssupport at caps.ou.edu
*Sent:* 09/16/2009 4:43:51 PM -0500
*Subject:* [ARPSSUPPORT] NETCDF



> Hi Kevin,
>
> This is quite strange. First of all when I dump arps output in netcdf  
> dump option 8 I get one file called may20.nc, there are no two files 
> like you mentioned. But when I use the option 7 , which gives separate 
> output for every dump step, I get *.netgrdbas, *net000000, and the 
> consequent dump times that is normal.
>
> I've downloaded the latest version of  idv2.8a1 and still it won't 
> recognize the netcdf file as gridded data set. I've sent them a 
> support request so maybe they have an answer. But in the meantime I've 
> attached  a *.nc file from a sample simulation, it should contain the 
> grdbas values and a 1 minute sample time output from the may20 demo 
> simulation. I plotted this file in arpspltpost and it was fine, I've 
> seen the 1 minute result, so I presume it is an Ok netcdf file. By the 
> way I used the same file as the grdbas file and history file in my 
> arpsltpost namelist file. Can you please check the file from your side 
> and see if it is a valid nc file before I continue, maybe if you can 
> plot it with idv and check, that will be very appreciated.
>
> Thanks
> Marwan
>
> Marwan Katurji
>
> PhD Candidate
> Center for Atmospheric Research
> Department of Geography, 3rd floor
> University of Canterbury
> Private Bag 4800
> Christchurch 8140, New Zealand
> -----------------
> Work:  +64 3 364 2987  ext: 3088
> Mobile:+64 212 049534
> Fax:   +64 3 364 2907
>
> Email: marwan.houda at gmail.com
>       mka94 at student.canterbury.ac.nz
>
>
>
> Kevin W. Thomas wrote:
>>> Hi Kevin,
>>>
>>> Thanks for the previous help on compiling with hdfnet. I've disabled 
>>> the netcdf in hdf4 configure but now I am having another issue and I 
>>> don't know if it is related to that or not.
>>> To start with I've compiled  and tried successfully arps and arpscvt 
>>> with hdf and netcdf. Also the  arpscvt can  covert back and forth 
>>> and for the netcdf options 7 and 8. I also dumped the data with 
>>> ncdump and no problem, also plotted with arpspltpost and everything 
>>> looks ok with both hdf and netcdf.  The problem arises when I try to 
>>> view the single *.nc file with a netcdf browser like Panoply or IDV, 
>>> both do not recognize the *.nc file as plotable data. That is quite 
>>> strange given that the same programs can view WRF netcdf files.
>>> By the way, I also tried compiling and running arps with only netcdf 
>>> option (-io net) but had the same problem with the one with (-io 
>>> hdfnet).
>>> I don't know if you can help me on this one but any hint will let me 
>>> started on finding the problem.
>>>
>>> Thanks
>>> Marwan
>>>
>>> Marwan Katurji
>>>
>>> PhD Candidate
>>> Center for Atmospheric Research
>>> Department of Geography, 3rd floor
>>> University of Canterbury
>>> Private Bag 4800
>>> Christchurch 8140, New Zealand
>>> -----------------
>>> Work:  +64 3 364 2987  ext: 3088
>>> Mobile:+64 212 049534
>>> Fax:   +64 3 364 2907
>>>
>>> Email: marwan.houda at gmail.com
>>>       mka94 at student.canterbury.ac.nz
>>>     
>>
>> Marwan...
>>
>> The only issue I know about is that netCDF files >2gb must be written as
>> 64-bit files, not 32-bit files.  That should be the default.  Since 
>> you can
>> plot them with "arpspltpost", they are likely okay.
>>
>> I know that ARPS history files are fully supported in IDV.  I've not 
>> heard of
>> "Panoply", so I wouldn't know about that.  You just have to remember 
>> that the
>> ARPS software will give you 2 netCDF files to describe a data set, 
>> not one
>> like WRF does.  Look for a way of displaying ARPS files in IDV.  I've 
>> not used
>> it myself in a very long time, so I can't tell you the "magic".
>>
>>     == kwthomas ==
>>
>>  
>>> Kevin W. Thomas wrote:
>>>    
>>>>> Hi there,
>>>>>
>>>>> I am trying to compile arpscvt with hdfnet, already installed 
>>>>> netcdf version 4.0.1 and hdf version 4.2 r4. I've compiled 
>>>>> successfully with each library individually (-io net and -io hdf) 
>>>>> but when I use hdfnet I get the following error, something related 
>>>>> to multiple definition. I am also aware to the fact that I have 
>>>>> to  edit mfhdf/libsrc/hdf2netcdf.h  in the hdf source code and add 
>>>>> this line at the top: #define HAVE_NETCDF. But that did not work. 
>>>>> I don;t know if that is related to this problem or not.
>>>>> Your help is highly appreciated
>>>>>
>>>>> Thanks
>>>>> -- 
>>>>> Marwan Katurji
>>>>>
>>>>> PhD Candidate
>>>>> Center for Atmospheric Research
>>>>> Department of Geography, 3rd floor
>>>>> University of Canterbury
>>>>> Private Bag 4800
>>>>> Christchurch 8140, New Zealand
>>>>> -----------------
>>>>> Work:  +64 3 364 2987  ext: 3088
>>>>> Mobile:+64 212 049534
>>>>> Fax:   +64 3 364 2907
>>>>>
>>>>> Email: marwan.houda at gmail.com
>>>>>       mka94 at student.canterbury.ac.nz
>>>>>             
>>>> Hi Marwan...
>>>>
>>>> For more recent versions of HDF4, you need to use:
>>>>
>>>> configure --disable-netcdf
>>>>
>>>> instead of editing "hdf2netcdf.h".
>>>>
>>>>     Kevin W. Thomas
>>>>     Center for Analysis and Prediction of Storms
>>>>     University of Oklahoma
>>>>     Norman, Oklahoma
>>>>     Email:  kwthomas at ou.edu
>>>>
>>>>         
>>> _______________________________________________
>>> ARPSSUPPORT mailing list
>>> ARPSSUPPORT at caps.ou.edu
>>> http://www.caps.ou.edu/mailman/listinfo/arpssupport
>>>
>>>     
>>
>>   
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