Table 8: a) 12Z wind speed verification. N is the number of events. The bias is calculated according to measurements – model results. Corr- correlation. a - slope b – intercept according to scatter plot of measurements (x axis) versus model results. b) same as a) at 0Z. c) same as a) for wind direction at 12Z. d) same as c) at 0Z. a) wind speed 12Z

a) wind speed 12Z
Season P level N Bias
mea-mod
RMSE corr a b
DJF 1000 2783 0.5 1.6 0.81 0.76 0.58
- 925 1826 0.6 1.9 0.91 0.76 0.86
- 850 2823 0.5 1.9 0.91 0.83 0.70
MAM 1000 1954 0.4 1.6 0.68 0.59 1.68
- 925 1225 0.4 1.9 0.84 0.72 1.16
- 850 1977 0.4 1.9 0.89 0.82 0.74
JJA 1000 3394 -0.5 1.4 0.22 0.12 4.40
- 925 2143 -0.5 1.5 0.62 0.38 2.94
- 850 3403 0.6 1.7 0.75 0.62 1.27
SON 1000 3194 0.2 1.5 0.54 0.45 2.17
- 925 1960 0.0 1.7 0.75 0.55 1.91
- 850 3191 0.6 1.8 0.81 0.71 0.76