Re: NCEP - parameter table

From: Dennis Shea <shea_at_nyahnyahspammersnyahnyah>
Date: Thu Jul 22 2010 - 13:31:38 MDT

Can you please tell us what version of NCL you are using?

%> ncl -V

Substantail additions have been made to the GRIB tables in recent versions.

THX

On 7/22/10 9:32 AM, Jean Peres wrote:
> HI all,
>
> I'm trying to open a grib files, but I'm getting the following warning:
> warning:NclGRIB: Unknown grib parameter number detected (255, center 7,
> table version 255 grib record 241), using default variable name (VAR_255)
> I know that 255 means "missing" , but I really want to fix it.
> I found in email list this link:
> http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/NclFormatSupport.shtml#GRIB1-built-in-parameter-tables
> But I didn't understand (English isn't my native language).
> What I understood was that I need to set a variable NCL_GRIB_PTABLE_PATH
> - In my case, something like that;
> NCL_GRIB_PTABLE_PATH="/home/jean/NCL_MASTER"
> and create a ".gtb" file with the follow table:
> US Weather Service - NCEP (Parameter table version 141)
> And I have to include the row with 255 information (missing value).
>
> So my doubt is, where do I put the NCL_GRIB_PTABLE_PATH in my script
> and how can I include the missing information at the table.
>
> I hope my English is clear,
>
> And I'd appreciate any help.
>
> --
> Jean Peres
> Meteorologista
> Laboratório MASTER
>
>
>
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Received on Thu Jul 22 13:31:48 2010

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