[Met_help] grid_stat netcdf files

John Halley Gotway johnhg at rap.ucar.edu
Mon Jul 28 22:56:25 MDT 2008


Luke,

Could you also please send along the config file you were using
(AFTAC_config_GS) and whatever you used to define the AFTAC masking
region?  I assume that AFTAC is a polyline.

I'm confused as to your question on the order of the arrays in the NetCDF
file.  When I do an ncdump of the NetCDF file you provided and grep out
the variable definitions, I see what's listed below.  The arrays appear to
be ordered as lat, lon as described in the user's guide.  However, in
METv1.0 I do believe they were ordered as lon, lat.

I'll try running Grid-Stat on the files and dump out the valid data values
on the input and output files to try to replicate what you're seeing.

John

        float lat(lat, lon) ;
        float lon(lat, lon) ;
        float FCST_UGRD_Z10_AFTAC(lat, lon) ;
        float DIFF_UGRD_Z10_AFTAC(lat, lon) ;
        float OBS_UGRD_Z10_AFTAC(lat, lon) ;
        float FCST_VGRD_Z10_AFTAC(lat, lon) ;
        float DIFF_VGRD_Z10_AFTAC(lat, lon) ;
        float OBS_VGRD_Z10_AFTAC(lat, lon) ;
        float FCST_UGRD_P500_AFTAC(lat, lon) ;
        float DIFF_UGRD_P500_AFTAC(lat, lon) ;
        float OBS_UGRD_P500_AFTAC(lat, lon) ;
        float FCST_VGRD_P500_AFTAC(lat, lon) ;
        float DIFF_VGRD_P500_AFTAC(lat, lon) ;
        float OBS_VGRD_P500_AFTAC(lat, lon) ;
        float FCST_UGRD_P600_AFTAC(lat, lon) ;
        float DIFF_UGRD_P600_AFTAC(lat, lon) ;
        float OBS_UGRD_P600_AFTAC(lat, lon) ;
        float FCST_VGRD_P600_AFTAC(lat, lon) ;
        float DIFF_VGRD_P600_AFTAC(lat, lon) ;
        float OBS_VGRD_P600_AFTAC(lat, lon) ;
        float FCST_UGRD_P700_AFTAC(lat, lon) ;
        float DIFF_UGRD_P700_AFTAC(lat, lon) ;
        float OBS_UGRD_P700_AFTAC(lat, lon) ;
        float FCST_VGRD_P700_AFTAC(lat, lon) ;
        float DIFF_VGRD_P700_AFTAC(lat, lon) ;
        float OBS_VGRD_P700_AFTAC(lat, lon) ;
        float FCST_UGRD_P400_AFTAC(lat, lon) ;
        float DIFF_UGRD_P400_AFTAC(lat, lon) ;
        float OBS_UGRD_P400_AFTAC(lat, lon) ;
        float FCST_VGRD_P400_AFTAC(lat, lon) ;
        float DIFF_VGRD_P400_AFTAC(lat, lon) ;
        float OBS_VGRD_P400_AFTAC(lat, lon) ;
        float FCST_UGRD_P300_AFTAC(lat, lon) ;
        float DIFF_UGRD_P300_AFTAC(lat, lon) ;
        float OBS_UGRD_P300_AFTAC(lat, lon) ;
        float FCST_VGRD_P300_AFTAC(lat, lon) ;
        float DIFF_VGRD_P300_AFTAC(lat, lon) ;
        float OBS_VGRD_P300_AFTAC(lat, lon) ;
        float FCST_UGRD_P200_AFTAC(lat, lon) ;
        float DIFF_UGRD_P200_AFTAC(lat, lon) ;
        float OBS_UGRD_P200_AFTAC(lat, lon) ;
        float FCST_VGRD_P200_AFTAC(lat, lon) ;
        float DIFF_VGRD_P200_AFTAC(lat, lon) ;
        float OBS_VGRD_P200_AFTAC(lat, lon) ;




> Hello;
>
> I am trying to plot the netcdf data, which is generated by grid_stat.
> However, the values in the .nc files don't seem to be correct.  I am
> comparing 10-m winds from WRF and GFS.  The data in the .nc files do not
> appear to be the same as the data in my original files (nowhere close).  I
> have set the smoothing to 1*1 grid box and the values still appear to be
> way
> off.  I will upload my files via ftp if you'd like to take a look.
>
> Also, it seems that the arrays in the .nc files are stacked as
> lon,lat...the
> MET manual has them as lat,lon.
>
> Thank you!
>
> Luke
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> Met_help at mailman.ucar.edu
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