Katja Trachte,
The problem is that the NetCDF file you got from CDC contains spectral
coefficient data, not gridded data. GrADS, and hence LATS, only works
with gridded data. You'll have to find some other tool, or write your
own, for this conversion.
-Hoop
> From owner-ncdigest@xxxxxxxxxxxxxxxx Tue Jan 18 21:34:25 2005
> Reply-To: netcdfgroup@xxxxxxxxxxxxxxxx
>
> ncdigest Tuesday, January 18 2005 Volume 01 : Number 843
>
> Today's Topics:
> netcdf to grib
>
> ----------------------------------------------------------------------
>
> Date: Tue, 18 Jan 2005 11:43:47 +0100
> From: "Katja Trachte" <katja_trachte@xxxxxx>
> Subject: netcdf to grib
>
> Hello netcdfgroup,
>
> I'm using NCEP/NCAR reanalysis-2 data from CDC which are in netcdf format. To
> initialize a numerical model (ARPS) with these data I need them in grib
> format.
> I've downloaded 'grads' and 'lats4d' and it works fine with the example data.
> But when I try to convert the NCEP/NCAR data I get the following error
> message:
>
> "GX Package Initialization: Size = 11 8.5
> Running in Batch mode
> lats4d: Version 1.3 of 16 June 2000
> No hardcopy metafile open
> All files closed; all defined objects released
> All GrADS attributes have been reinitialized
> Scanning self-describing file: shum.spec.2000.nc
> SDF file has no discernable X coordinate.
> lats4d: cannot open file " shum.spec.2000.nc"
> lats4d: error creating grads_grib file shum.grib.grb
> lats4d: exiting from GrADS...
> No hardcopy metafile open
> GX package terminated"
>
> What did I wrong and what do I have to do?
> Thank you very much for your help!
> Best regards
> Katja Trachte
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> ------------------------------
>
> End of ncdigest V1 #843
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