[Wrf-users] WPS 2.2.1 vs. WPS 2.2

Jan Ploski Jan.Ploski at offis.de
Tue Dec 11 07:25:32 MST 2007


Hello,

I ran WRF v.2.2 for the input produced by WPS-2.2 and for the input 
produced by WPS-2.2.1 based on the same GFS GRIB data (20070501_1800_000 
and 20070501_1800_006), same compiler, same machine Then I compared the 
differences in model output after 6 hours (see below). The last column 
rel_RMSE is mine, equal to RMSE/RMS(1). There seem to be great differences 
in some fields (for example, W). Are these differences due to improvements 
in WPS? Is the output from WPS-2.2.1 supposed to be more accurate?

Best regards,
Jan Ploski

 Next Time 2007-05-01_18:00:00
     Field   Ndifs    Dims       RMS (1)            RMS (2)     DIGITS 
RMSE     pntwise max  rel_RMSE
         U    501912    3   0.1047023111E+02   0.1047023899E+02   6 
0.5736E-03   0.2072E-03   0.00547839%
         V    500029    3   0.9154671278E+01   0.9154668690E+01   6 
0.4003E-03   0.3270E-03   0.00437263%
         W     11563    3   0.1803648100E-02   0.1803638588E-02   5 
0.3931E-07   0.7068E-04   0.00217947%
        PH    504888    3   0.3510493734E+04   0.3510450865E+04   4 
0.2370E+01   0.5491E-03   0.06751187%
         T    459910    3   0.5078324498E+02   0.5077864214E+02   4 
0.5141E-02   0.1868E-03   0.01012342%
        MU     14850    2   0.1278944477E+04   0.1274727595E+04   2 
0.5040E+01   0.3929E-02   0.39407496%
         P    504889    3   0.9666594007E+03   0.9662186991E+03   3 
0.7554E+00   0.1186E-02   0.07814541%
        Q2      9107    2   0.6299210394E-02   0.6299331570E-02   4 
0.2955E-05   0.8622E-02   0.04691064%
       TH2     14850    2   0.2847661656E+03   0.2847669743E+03   5 
0.8203E-03   0.4516E-05   0.00028806%
      PSFC     14850    2   0.9900480120E+05   0.9900382219E+05   5 
0.9928E+00   0.1320E-04   0.00100278%
    QVAPOR    496774    3   0.3633594910E-02   0.3640369446E-02   2 
0.5262E-04   0.2454E-01   1.44815262%
 Next Time 2007-05-02_00:00:00
     Field   Ndifs    Dims       RMS (1)            RMS (2)     DIGITS 
RMSE     pntwise max  rel_RMSE
         U    509983    3   0.1054886782E+02   0.1054955655E+02   4 
0.3815E+00   0.2528E+00   3.61650185%
         V    508245    3   0.9119138485E+01   0.9122535380E+01   3 
0.4171E+00   0.3346E+00   4.57389698%
         W    516903    3   0.3223374041E-01   0.3232556966E-01   2 
0.1794E-01   0.1791E+01   55.65596723%
        PH    504896    3   0.3514429683E+04   0.3513690359E+04   3 
0.9539E+01   0.1295E-01   0.27142384%
         T    504879    3   0.5090276242E+02   0.5088226723E+02   3 
0.1879E+00   0.2395E-01   0.36913517%
        MU     14850    2   0.1364450259E+04   0.1355983567E+04   2 
0.1381E+02   0.9567E-01   1.01212924%
         P    504490    3   0.1024141484E+04   0.1020629369E+04   2 
0.8432E+01   0.1620E+00   0.82332374%
        SR      1276    2   0.2753718020E+00   0.2712326440E+00   1 
0.1265E+00   0.1000E+01   45.93789164%
        Q2     14850    2   0.6551109950E-02   0.6577500362E-02   2 
0.1183E-03   0.2015E+00   1.80580086%
        T2     14825    2   0.2807707870E+03   0.2808945699E+03   3 
0.3697E+00   0.1370E-01   0.13167324%
       TH2     14829    2   0.2816300163E+03   0.2817614580E+03   3 
0.3772E+00   0.1353E-01   0.13393459%
      PSFC     14841    2   0.9909129321E+05   0.9908534852E+05   4 
0.1289E+02   0.4413E-02   0.01300821%
       U10     14850    2   0.3496281137E+01   0.3508749614E+01   2 
0.2604E+00   0.5140E+00   7.44791365%
       V10     14850    2   0.3189981477E+01   0.3201907467E+01   2 
0.3169E+00   0.8638E+00   9.93422696%
    QVAPOR    504875    3   0.3604695017E-02   0.3620940887E-02   2 
0.7910E-04   0.1542E+00   2.19436040%
    QCLOUD     89438    3   0.3425429860E-04   0.3423411486E-04   3 
0.1870E-04   0.9846E+00   54.59168853%
     QRAIN    190251    3   0.3161336971E-04   0.3511278828E-04   1 
0.2410E-04   0.1319E+01   76.23356896%
      TSLB     32869    3   0.2816348555E+03   0.2817175684E+03   3 
0.3095E+00   0.1903E-01   0.10989407%
       TSK      8218    2   0.2805707423E+03   0.2807068422E+03   3 
0.4477E+00   0.1917E-01   0.15956760%
     RAINC      1491    2   0.1058250376E+01   0.1072965721E+01   1 
0.2137E+00   0.5335E+00   20.19370887%
    RAINNC     12619    2   0.7421595752E+00   0.1005924169E+01   0 
0.4210E+00   0.4499E+00   56.72634485%
    SNOWNC      2301    2   0.2042914491E+00   0.3807980388E+00   0 
0.2381E+00   0.8987E+00   116.54917572%
       GLW     14849    2   0.2850744626E+03   0.2887687479E+03   1 
0.1328E+02   0.2265E+00   4.65843200%
       UST     13733    2   0.2760589301E+00   0.2791681375E+00   1 
0.1983E-01   0.2993E+00   7.18324888%
      PBLH     14806    2   0.1958723950E+03   0.1964177780E+03   2 
0.1722E+02   0.2448E+00   8.79143792%
       HFX     14850    2   0.2637302626E+02   0.2584203556E+02   1 
0.4889E+01   0.2627E+00   18.53788015%
       QFX     14405    2   0.1687202836E-04   0.1688511089E-04   3 
0.7452E-06   0.2058E+00   4.41677778%
        LH     14405    2   0.4218007090E+02   0.4221277730E+02   3 
0.1863E+01   0.2058E+00   4.41677778%



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