[Wrf-users] Re: WRF-WPS NNRP data problems

Don Morton Don.Morton at umontana.edu
Mon Mar 26 09:20:18 MDT 2007

All, I received this outside of the list and am posting primarily
so that it has a better chance of showing up in future Google
searchers, browsing of the wrf-users archive, etc.

Simone, the answer to your question (and even a fix!) may be
found at:


On 3/26/07, Simone Marras <simone.marras at bsc.es> wrote:
> Good morning Dr. Morton,
> I apologize for contacting you directly instead of going thorugh the forum,
> but apparently I cannot enter it.
> Anyhow, I am a Ph.D. student at the Barcelona supercomputing center and I am
> learnbing how to use WRF in order to do some downscaling studies.
> When I try to use the NNRP and NNRPSFC Vtables in WPS i get an error when I
> finally launch metgrid.exe but I have no idea on what it could be related to.
> ERROR is:
> Processing domain 1 of 1.
>  Processing 1980-08-05_00
>     FILEpgb
>     FILEgrb
> Oops, something is not right with the Gaussian latitude computation.
> The input data gave the starting latitude as   88.570.
> This routine computed the starting latitude as +-  88.542.
> The difference is larger than 0.01 degrees, which is not expected.
> ERROR: Gaussian_latitude_computation
> I hope you can help me or address me to someone who could,
> Best regards
> Simone Marras
> --
> Simone Marras, Ph.D. Student
> BSC & Universitat Politecnica de Catalunya
> Jordi Jirona 29
> 08034 Barcelona
> Spain

Don Morton
Department of Computer Science
The University of Montana - Missoula

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