Comparative Analysis of SCATSat-1 Gridded Winds With Buoys, ASCAT, and ECMWF Winds in the Bay of Bengal

2018
This paper presents the first results on comparisons of ScatterometerSatellite-1 (SCATSat-1) derived wind datasets with the in situ , reanalysis as well as another operational scatterometerderived winds in the Bay of Bengal during the period November 2016–March 2017. The comparisons of daily gridded wind products of SCATSat-1 with buoysshow good correlations (>0.83), higher skill scores (>0.92), and lower root mean square errors (RMSEs) of 0–2 m/s for wind speeds (WS) at the buoylocations. Similarly, the results corresponding to wind directions (WD) show higher correlations (>0.95), higher skill scores (>0.96), and relatively lower RMSEs (15–30°). Further, the intercomparisons of SCATSat-1 with Advanced Scatterometerand European Centre for Medium Range Weather Forecastsreanalysis winds show strong correlations for both WS (>0.85) and WD (>0.94). This paper also reports the capability of SCATSat-1 to capture three tropical cyclonesKyant, Vardah, and Moraduring the period of study with the highest WS of 23.5 m/s.
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