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Re: Decoder help

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  • Subject: Re: Decoder help
  • Date: Tue, 9 Mar 1999 10:26:50 -0700 (MST)
On 9 Mar 1999, Jason Burks wrote:

> 
>      Robb,
>      I have been using the gribtonc decoder to decode NOGAPS model output 
>      and view the data on AWIPS, the deocder works great! I recently tried 
>      to add some fields from the NOGAPS, but the decoder says that they are 
>      oversized GRIb product. The grid size has not changed still 360x181, 
>      but I noticed that the file sizes go from 81 Kb to 187 Kb. When I try 
>      to run the gribdump on these larger files nothing happens. I used 
>      wgrib on these files and only thing I can find is that the number of 
>      bits for the larger files is 20 instead of 10 on the smaller. So my 
>      question is there something I need to change to make it work. What are 
>      your thoughts?
>      Thanks in advance.
>      Jason Burks
> 

Jason,

We just ran into this problem recently, I plan to make a decoders release
soon.  The actual problem is that the grid sizes have increase and
gribtonc doesn't have enough space to hold the increased size. It's an
easy fix;

It's only a one word modification in grib1.h, change:

#define MAX_GRIB_SIZE 20000

to

#define MAX_GRIB_SIZE 100000

That's all, then:

% make clean
% make

That should do the trick.

Robb...





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