India’s climate is dominated by monsoons. It delivers most of India’s rainfall and has a key impact on the economy. A monsoon is a seasonal shift in the direction of a region’s prevalent winds. The winds are caused
by temperature differences, which lead to the formation of zones of high and low pressure over land in different seasons. These winds are important to understand the genesis and growth of organized convective systems, in weather forecasting and nowcasting applications, and to understand global and local climate change.

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Oceansat-2, an Indian Earth observation space mission, contributes significantly to making up for the loss of QuikSCAT US-mission in November 2009 by providing global wind field data. It was launched by the Indian Space Research Organization (ISRO) in September 2009 with a Ku-band scatterometer for providing global  2-D wind field observations for climatological use. Oceansat-2 Scatterometer (OSCAT) proved to be an efficient instrument, as evidenced by the extensive acceptance and usage of OSCAT data by many international agencies, including NASA/JPL, NOAA, KNMI, EUMETSAT, and ECMWF for both research and operational purposes. And recently, in November 2022, ISRO launched Oceansat-3 also known as Earth Observing Satellite 6 (EOS- 6) aims to provide service continuity for users of Oceansat-2 data (mission ended in April, 2014), as well as improve upon existing remote sensing capabilities in the field of oceanography.

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We are working on the combined data set of the wind measurements from collocated scatterometer and Doppler Weather Radars (DWR).