[RegCNET] netcdf, grads, and postproc

[Rauscher Sara_A_]

Hi All--

I just want to clarify that I do use PostProc'ed created netcdf files with
grads with no problems. I think this issue has been confused and
overstated a bit on the list in the past. If you have output in netcdf,
and you have a PDEF in your control files, you do need to create a data
descriptor file to get the projection displayed correctly, but this is no
more work than writing a standard grads control file (.ctl). We have
examples on the RegCNET web page.

See http://users.ictp.it/RegCNET/tut4.html

under the heading "view the output"

That stated, Bi's postprocessor is great alternative to PostProc. Also, we
still need to fix the max/min fields in the postproc, so if you want
averages for those fields, I would advise using Bi's programs.

My own personal preference is to have netcdf data because it is easy to
make averages and to do other manipulations using the netcdf operators
(NCO) or the climate data operators (CDO). These are really excellent
tools, but they work on netcdf data. See
http://nco.sourceforge.net/ (nco)
http://ccr.aos.wisc.edu/model/processing/#nco (nco tutorial I wrote in
grad school)
http://www.mpimet.mpg.de/fileadmin/software/cdo/ (cdo)

But others prefer to work with binary data and do everything in fortran.
That's perfectly fine. There are always many different ways to work and to
do things.

cheers
sara




> https://lists.ictp.it/pipermail/regcnet/2007/000800.html
>
> On Tue, 21 Oct 2008, XUNQIANG BI wrote:
>
>>
>> Hi, Hu:
>>
>> The present PostProc works with NCL and FERRET users.
>>
>> My understanding is that the present PostProc is not a good
>> option for GrADS users, Even though you can rewrite a GrADS
>> descriptor file for the netcdf file (as Sara introduced at
>> RegCNET webpage).
>>
>> I would suggest GrADS users try the codes under RegCM/Commons/DAY_MONTH.
>>
>> Regards,
>> Bi Xunqiang
>> On Mon, 20 Oct 2008, Hu Yichang wrote:
>>
>>>  Hi
>>>
>>>  I have a question about post-processing. After post-processing, i got
>>> the
>>>  netcdf
>>>
>>>  files, but i found the margin of the graphics not in accord with the
>>>  margin of the map
>>>
>>>  drawing with grads. I don't know why.
>>>
>>>  Wishing for your help. Thanks
>>>
>>>  --
>>>
>>>  _______________________________________________
>>>  RegCNET mailing list
>>>  RegCNET at lists.ictp.it
>>>  https://lists.ictp.it/mailman/listinfo/regcnet
>>>
>>
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>    Dr. Xunqiang Bi         email:bixq at ictp.it
>>    Earth System Physics Group
>>    The Abdus Salam ICTP
>>    Strada Costiera, 11
>>    P.O. BOX 586, 34100 Trieste, ITALY
>>    Tel: +39-040-2240302  Fax: +39-040-2240449
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>    Dr. Xunqiang Bi         email:bixq at ictp.it
>    Earth System Physics Group
>    The Abdus Salam ICTP
>    Strada Costiera, 11
>    P.O. BOX 586, 34100 Trieste, ITALY
>    Tel: +39-040-2240302  Fax: +39-040-2240449
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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> RegCNET mailing list
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