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20010315: 20010314: From netCDF to gempak



Lodovica, 
could you send me the output from "ncdump -h" so that I ca see what
the cdl looks like?

dcreanal doesn't use udunits, so no trouble there. The program is set up
according to the coards conventions that were used in the reanalysis
files I had access to. The parameter variables were 3 or 4 dimensional.

Steve Chiswell
Unidata User Support





>From: Lodovica Illari <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200103151842.f2FIglL27392

>Hi Steve,
>
>I have installed dcreanal in my gempak distribution, but when we tried to
>use it no gempak files were created.
>
>This is the output:
>
> dcreanal z.cdf zwind.gem
> Changing center table to cntrgrib1.tbl
> Changing vertical coord table to vcrdgrib1.tbl
> Changing WMO parameter table to ncarncep1.tbl
> Changing center parameter table to ncarncep1.tbl
>---------------------------------------------------
>We checked the netcdf file with ncdump and it is fine.
>
>What do you think is going wrong?
>
>By the way I have compiled dcreanal without the udunits lib, because
>there were not available on our system.  Could this create some problem?
>
>Thanks again
>
>Lodovica
>.
>
>
>On Wed, 14 Mar 2001, Unidata Support wrote:
>
>> >From: Lodovica Illari <address@hidden>
>> >Organization: UCAR/Unidata
>> >Keywords: 200103141850.f2EIoYL09674
>> 
>> >Hi,
>> >
>> >I have some reanalysis data in netCDF format.  I would like to make a
>> >gempak file from that? We are running gempak5.4 and we don't have
>> >dcreanal. Can you give us a patch? 
>> >
>> >Thanks for your help
>> >
>> >Lodovica Illari
>> >
>> 
>> 
>> Lodovica,
>> 
>> There is a source tarfile for 5.4 in the gbuddy ftp account:
>> ftp to ftp.unidata.ucar.edu
>> login: gbuddy
>> password: XXXXXX
>> 
>> cd nawips-5.4/contrib
>> get dcreanal.tar.Z
>> 
>> 
>> The installation instructions are in the archives at:
>> http://www.unidata.ucar.edu/projects/coohl/mhonarc/MailArchives/gempak/msg02
> 840.html
>> 
>> You will need to have NetCDF library installed on your system and make sure 
> that
>> the NETCDF and NETCDFINC definitions in Makeinc.common are set appropriately
> .
>> 
>> 
>> The dcreanal program does not know how to deal with the reanalysis data
>> on Gaussian grids.
>> 
>> Since there can be many times in a NetCDF file, and you are limited to
>> 1000 times in a grid file, I generally suggest monthly GEMPAK output
>> since 365 days x 4 analysis per day exceeds 1000.
>> 
>> Execution example:
>> dcreanal slp.1948.nc YYYYMM_slp.gem
>> 
>> The above reads from the NetCDF file slp.1948.nc and writes to monthly
>> Gempak files using the YYYYMM template.
>> 
>> Steve Chiswell
>> ****************************************************************************
>> Unidata User Support                                    UCAR Unidata Program
>> (303)497-8644                                                  P.O. Box 3000
>> address@hidden                                   Boulder, CO 80307
>> ----------------------------------------------------------------------------
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>> 
>