Impact of a new scatterometer (SCATSat-1) winds on the Simulation of Bay of Bengal Circulation

The accurate ocean surface winds are very important for the numerical ocean simulations. Thus, the measurements obtained from scatterometer onboard satellites are of great importance as it has the advantage of global coverage. The latest being Scatterometer Satellite-1 (SCATSat-1) which is a follow up mission of OceanSat-2 by Indian Space Research Organization (ISRO). Before applying the SCATSat-1 winds, the daily gridded product is validated with in situ, reanalysis as well as another operational scatterometer derived winds in the Bay of Bengal (BoB) during the period November 2016 - March 2017. The comparisons of daily gridded wind products of SCATSat-1 with buoys show good correlations (R> 0.83), higher skill scores (S> 0.92) and lower Root Mean Square Errors (RMSEs, E) of 0-2 m/s for Wind Speeds (WS) at the buoy locations. Similarly, the results corresponding to Wind Directions (WD) show higher correlations (> 0.95), higher skill scores (> 0.96) and relatively lower RMSEs (15-25°).