[Met_help] [rt.rap.ucar.edu #100438] History for Config File Syntax for U/V Winds

[Julie Prestopnik via RT]

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  Initial Request
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John, I am verifying ensemble probabilities for winds > 15, 25, 35 using grid stat.  The analysis file (ECMWF) has winds in components (10U,10V).  The question is how do we set the observation field of the GridStat configuration file.   The fcst field is:

fcst = {
    field = [
               { name = "PROB"; level = "Z10";
                 prob = { name = "GUST"; thresh_lo = 15.; } GRIB2_pdt=5; }
              { name = "PROB"; level = "Z10";
                 prob = { name = "GUST"; thresh_lo = 25.; } GRIB2_pdt=5; },
              { name = "PROB"; level = "Z10";
                 prob = { name = "GUST"; thresh_lo = 35.; } GRIB2_pdt=5; },
              { name = "PROB"; level = "Z10";
                 prob = { name = "GUST"; thresh_lo = 50.; } GRIB2_pdt=5; }
            ];
            cat_thresh=[==0.01];
 }

How would I code the observation field to match the fcst field where the ECMWF analysis data is in U/V components.  The component names (GRIB 1) is 10U for U winds and 10V for V winds.  Did not see a good example of this in the Users Manual.

Thanks
Bob


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