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Table 3 Comparison of zonal and meridional wind components in JRA-55 dataset with those in radiosonde dataset at Hanoi

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

Level of the wind Time Wind component Radiosonde (renalaysis) mean Bias RMSE
925 hPa 00UTC Zonal 0.84 (0.85) +0.01 1.94
  (07LT) Meridional 1.87 (0.37) -1.50 2.74
  12UTC Zonal -1.99 (-1.41) +0.58 2.29
  (19LT) Meridional 3.22 (2.11) -1.11 2.45
850 hPa 00UTC Zonal 2.73 (1.58) -1.15 2.84
  (07LT) Meridional 1.19 (0.87) -0.31 2.19
  12UTC Zonal 0.36 (-0.01) -0.37 2.26
  (19LT) Meridional 1.34 (1.32) -0.02 2.03
  1. The analyzed months are May, June, July, and August from 2000 to 2010. We show means in the both datasets, biases defined as values in the JRA-55 minus those in the radiosonde and root mean square errors (m s −1). The JRA-55 values are interpolated at Hanoi’s location with the data at four surrounding grids with inverse-distance-square weighting