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 677

Fig. 26.19 Analysis increment at 850 hPa in the wind speed of ( a ) MODIS, ( b )ATOVSand
( c ) SSM/I for 18-22 June 2007 depression

which is evident from the Fig. 26.20 e-h. It is seen from Fig. 26.22 that the low
level south-westerly monsoon flow is prominent in all the four experiments. The
maximum wind speed in the CTRL, the SSM/I and the MODIS runs exceed ms 1

for most of the times. The cyclonic circulation associated with the depression
moves in north-westward direction in all the experiments. However, the initial
cyclonic circulation feature simulated by the MODIS experiment is much east of
the observed location.

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