Re: Grib1 table file

From: David Brown <dbrown_at_nyahnyahspammersnyahnyah>
Date: Wed Jun 29 2011 - 11:34:15 MDT

Hi James,
To my knowledge there is no such thing as a "standard" GRIB1 table format. NCEP, ECMWF, and wgrib all use different orderings for the columns. And unfortunately I guess so does NCL. The order you have will not work. NCL's format is described at

Basically the order needs to be:

Param number : abbreviation : units : descriptive name

You can change the separator character and you can use spaces as long as there are at least 2 spaces between the column entries and never more than 1 space between the words of the descriptive name or the units characters. The separator is determined by the table header row that begins with a -1 in the parameter number column.
The abbreviation cannot have any spaces and must contain only letters, numbers or the underscore character.

On Jun 29, 2011, at 10:39 AM, James Correia wrote:

> NCL'ers-
> I am trying to make NCL read my grib table. I am following the instructions by setting the path, but I am wondering if the standard grib table format is acceptable?
> Here is an entry from my new grib table:
> 131 Surface lifted index K LIFT 0 -9999.00
> Is this format acceptable?
> Or do I need to add the ":" between fields to make it work?
> jimmyc
> --
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> James Correia Jr.
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> SPC HWT Liaison
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Received on Wed Jun 29 11:34:26 2011

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