Re: 20040512: gribtonc - S400.wood.wmich.edu

On Wed, 12 May 2004, Unidata Support wrote:

>
> ------- Forwarded Message
>
> >To: address@hidden
> >From: Karthik Samudram Jayaraman <address@hidden>
> >Subject: gribtonc - S400.wood.wmich.edu
> >Organization: Western Michigan University
> >Keywords: 200405121642.i4CGgktK022165 gribtonc
>
> Hi ,
>
> We have some GRIB data that needs to be converted to .nc format. So
> i have downloaded and installled netcdf , udunits and gribtonc ( I
> have installed netcdf , udunits - because gribtonc uses these !!! ).
>
> Iam not sure what to do next and how to convert the image using
> gribtonc.
>

Karthik,

The first step is to create a cdl file for the data with the gribtocdl
command.  Take a file that has all the parameters in the data set , ie

% gribtocdl -v < rawdata > grib.cdl

This is the cdl file for the data, it usually needs to be modified
somewhat because the GRIB data is complex.  One can look at the raw data
with the gribdump command, ie

% gribdump -h rawdata | more

Then run the gribtonc command, ie

% gribtonc -vl - grib.cdl grib.nc < rawdata

There are man pages for detail info on all the commands.

Robb...

>
> --
> Sincerely ,
>
> Karthik Samudram Jayaraman
>
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===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================