Studies on the Impacts of 3D-VAR Assimilation of Satellite Observations on the Simulation of Monsoon Depressions over India - Data Assimilation for Atmospheric, Oceanic and Hydrologic Applications - page 682

Table 26.7 Root mean square error of wind speed profiles averaged over the domain for 18-22 June 2007 depression

20 June 2007 12 UTC

21 June 2007 12 UTC 22 June 2007 00 UTC

Pressure levels (hPa) CTRL ATOVS MODIS SSM/I CTRL ATOVS MODIS SSM/I CTRL ATOVS MODIS SSM/I

6:27 4:52 5:17 7:60

950 2.78 3.47 1.82 3.72 3.47 2.53 3.95 3.87

920 3.16 4.06 2.56 4.06 4.23 3.85 4.98 4.06 5:91 5:17 5:67 7:65

850 2.38 2.96 2.48 2.50 6.87 7.49 7.37 6.07 5:80 5:98 5:49 7:33

780 3.56 3.46 3.98 3.60 5.73 6.08 6.46 5.80 5:71 6:00 5:43 7:32

700 4.83 5.05 6.19 4.93 4.81 4.63 4.72 3.44 4:75 6:10 5:45 6:17

620 5.02 5.46 6.41 5.34 3.89 3.65 4.14 3.34 5:23 6:05 5:43 5:73

500 5.32 5.06 6.45 6.72 3.32 4.42 3.77 5.64 5:16 5:23 4:73 5:72

400 2.43 2.65 3.26 3.99 5.71 5.08 5.11 3.90 3:68 3:98 3:90 4:36

300 3.52 3.25 3.58 3.64 4.91 4.88 4.54 3.78 4:12 4:51 3:51 5:74

200 4.16 4.16 7.69 4.02 5.70 4.72 4.06 5.24 17:80 17:51 17:79 17:09