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Table 1 Statistics of wind frequency, precipitation, and its reproducibility by the GSMaP with respect to the VnGP classified into four wind direction categories

From: Precipitation estimation performance by Global Satellite Mapping and its dependence on wind over northern Vietnam

Level of the wind 925 hPa 850 hPa  
Wind direction (in degrees) North East South West North East South West
  (315−−360, (45−−135) (135−−225) (225−−315) (315−−360, (45−−135) (135−−225) (225−−315)
  0−−45)     0−−45)    
Number of days 195 152 509 322 132 165 366 408
Mean daily precipitation (mm day −1) 7.9 8.7 9.8 8.3 8.2 6.0 10.2 9.5
Contribution to total precipitation (%) 12.8 11.0 41.9 22.4 9.1 8.4 31.5 32.7
GV ratio 0.78 0.58 0.71 1.03 0.80 0.51 0.61 0.91
Number of days for wind speed > 10 m s −1 27 14 36 27 20 22 15 154
  1. Wind direction range is 90 around the true north, east, south, and west in each category. The statistics basically show only the cases with wind speed less than 10 m s −1. Days with wind speed greater than 10 m s −1 are also shown for reference