Re: GRIB to netCDF (fwd)

• To: bit-bucket <bit-bucket@xxxxxxxxxxxxxxxx>
• Subject: Re: GRIB to netCDF (fwd)
• From: Robb Kambic <rkambic@xxxxxxxxxxxxxxxx>
• Date: Mon, 24 Feb 2003 09:58:28 -0700 (MST)

==============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
rkambic@xxxxxxxxxxxxxxxx                   WWW: http://www.unidata.ucar.edu/
==============================================================================

---------- Forwarded message ----------
Date: Sat, 22 Feb 2003 09:48:49 -0500
From: John A. Dutton <dutton@xxxxxxxxxxx>
To: Robb Kambic <rkambic@xxxxxxxxxxxxxxxx>
Subject: Re: GRIB to netCDF (fwd)

Robb..

Thanks very much for your prompt attention to our difficulties
transforming GRIB files to netCDF.  Your message gives me
considerable hope that all is now well and that we will be able to
proceed to take advantage of the many capabilities of netCDF.

I am looking forward to hearing from Ben that the decoding is
proceeding as efficiently as we had hoped.

Best regards, John

John, et al

I used the example grib file that was send to test the decoders packeage,
the bugs were  very apparent.  The bugs were fixed and I also update the
gribdump program to use the -g flag ( user params table ) and updated the
gribtonc and gribdump  man pages.  The table file that was sent had a
error, the name of  a NetCDF variable name cannot start with a digit, so I
created another one. ie,


        Grib;netCDF;long name               ;units;comments
        167 ;T_2meter     ;2 metre temperature     ;K    ;
        228 ;precep_total ;Total precipitation     ;m    ;

The ecmf.tbl and eecmf.cdl file are included as attachments.

There is a new decoders release with the fixes: decoders-2.4.3.tar.Z

%ftp www.unidata.ucar.edu

login as anonymous

% cd pub/decoders
% get decoders-2.4.3.tar.Z

There is more documentation on the decoders page at:

http://www.unidata.ucar.edu/packages/decoders

Robb...

 Date:    Thu, 20 Feb 2003 10:45:58 -0500
 From:    "John A. Dutton" <dutton@xxxxxxxxxxx>
 To:      russ@xxxxxxxxxxxxxxxx
 cc:      hauger@xxxxxxxxxxx, dutton@xxxxxxxxxxx
 Subject: GRIB to netCDF

 Hi Russ..

 It seems I have a flood of questions after years of silence...

 Thanks for your prompt reply on Monday.  I got the SST data I needed
 via a direct compile and execution of a little program via gcc, but I
 still have not gotten the library to work in Code Warrior.  I sent a
 message to Metrowerks...we'll see if I get an answer.

 New problem: We are encountering difficulties in trying to convert
 ECMWF GRIB files of  ensemble seasonal forecasts to netCDF.   The
 issue seems to turn on the fact that the  Unidata gribtocdl utilities
 are using the NCEP GRIB
 parameter tables and that there are differences with ECMWF.

 Any information or assistance would be greatly appreciated.

 Please REPLY to ALL since Ben Hauger above is actually doing the work.

 Again, many thanks, John
 --
 John A. Dutton
 Professor of Meteorology and Dean Emeritus
 College of Earth and Mineral Sciences
 The Pennsylvania State University
 814 865 1534

 ------- End of Forwarded Message

==============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
rkambic@xxxxxxxxxxxxxxxx                   WWW: http://www.unidata.ucar.edu/
==============================================================================

--
John A. Dutton
Professor Emeritus of Meteorology and Dean Emeritus
College of Earth and Mineral Sciences
The Pennsylvania State University
814 865 1534