20040519: Difficulty with gribtocdl !!! - s400.wood.wmich.edu

• To: Karthik Samudram Jayaraman <ksamudra@xxxxxxxxxxxx>
• Subject: 20040519: Difficulty with gribtocdl !!! - s400.wood.wmich.edu
• From: Unidata Support <support@xxxxxxxxxxxxxxxx>
• Date: Wed, 19 May 2004 06:16:16 -0600

>From: Karthik Samudram Jayaraman <ksamudra@xxxxxxxxxxxx>
>Organization: Western Michigan
>Keywords: 200405190820.i4J8KYtK017859

Hi Karthik-

>I was trying to convert some grib data file to netcdf.
>
>I used the following command to get the cdl file:
>
>gribtocdl -v <  GRID9004 > grib.cdl
>
>I get the message : 
>
>gribtocdl[21152]: error reading GRIB product
>
>This message repeats for a number of times.
>
>I got the same message when i used the gribdump command.
>
>This was a archival data. I tried getting the data from the ftp site 
>( assuming that the transfer was bad ) a number of times with the 
>same result.

If you got this from the SSEC archive, then these are McIDAS
grids not GRIB files.  You would need the raw GRIB data for
gribtocdl to work.  If you need the GRIB data, please send
a message to needdata@xxxxxxxxxxxxxxxx (you need to subscribe
first) requesting the type of data you want (ETA, AVN, etc)
and the dates for the raw data.

If you are using one of the standard GRIB data supported under
gribtonc (i.e., AVN, ETA), you should just use the CDL's that
come with gribtonc instead of running gribtocdl.

Don Murray
NOTE: All email exchanges with Unidata User Support are recorded in the
Unidata inquiry tracking system and then made publically available
through the web.  If you do not want to have your interactions made
available in this way, you must let us know in each email you send to us.