[Met_help] point stat & ascii2nc

[John Halley Gotway]

Leela,

It would probably be easiest if you could send me the sample data that you're using.  I'll try running it here to see if I can figure out what's going on.

Please send me the following:
(1) The ASCII input file to the ASCII2NC tool.
(2) Your NetCDF output file from ASCII2NC.
(3) The forecast file containing the 2m temp field from ARW.
(4) The configuration file that you're using when running the Point-Stat tool.

Thanks,
John Halley-Gotway
johnhg at ucar.edu

Watson.Leela wrote:
> I am currently trying to use MET to verify 2m temperatures from ARW
> forecasts with local observation data available in ASCII format. I
> reformatted my observations to fit the format identified in the MET
> documentation for the ASCII2NC tool. My observations cover a domain of
> approximately 20km x 20km and there are only 12 of them. The grid
> spacing of the ARW output is 1km. When I run the point_stat tool I
> receive the following message indicating that there are no matching
> pairs:
> 
>  
> 
> Grib Record Index = 11
> 
> Initialization time = 1201683600
> 
> Valid time = 1201683600
> 
> Accumulation time = 0
> 
> Grib Record (min, max) = (229.37726, 291.74725)
> 
>  
> 
> ----------------------------------------
> 
> Processing 12 observations from 12 PrepBufr messages...
> 
> For Grib Field TMP at Z2 for observation type MSONET, over region FULL,
> for interpolation method DW_MEAN(3), found 0 pairs.
> 
>  
> 
> I also noticed that when I ran the point_stat test script using the
> sample forecast and ascii data, it also produced similar errors for the
> 10m UGRD and VGRD values:
> 
>  
> 
> For Grib Field UGRD at Z10 for observation type ADPUPA, over region
> DTC165, for interpolation method UW_MEAN(1), found 0 pairs.
> 
> Etc...
> 
>  
> 
> I am confused as to how there can be no matching pairs when the
> observation point MUST fall between 4 grid points...?? Or maybe I am
> misunderstanding what the output message is saying. Any help would be
> appreciated!
> 
>  
> 
> Leela Watson
> 
>  
> 
> *********************************************************
> 
> Leela R. Watson, Meteorologist
> 
> ENSCO, Inc. / Applied Meteorology Unit
> 
> 1980 N. Atlantic Ave., Suite 230
> 
> Cocoa Beach, FL 32931
> 
> Voice: (321) 853-8264
> 
> Fax: (321) 853-8415
> 
> Email: watson.leela at ensco.com
> 
>  
> 
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