Ocean surface waves and winds over the north Indian Ocean from satellite altimeter - preliminary results of SAC-NIO joint project
Date
1992Author
Sarkar, A.
Rajkumar, R.
Gairola, R.M.
Gohil, B.S.
Vethamony, P.
Rao, L.V.G.
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With the aim of retrieving, validating and mapping ocean surface winds and waves in the north Indian Ocean, GEOSAT altimeter data for the period November 1986 to October 1987 and available sea truth data for the above period were processed in SAC and NIO. Though there had been three cruises during the period, there were very few satellite-ship overlaps. Data pairs (satellite derived and in situ) of surface wind speed, significant wave height and minimum significant swell height were used to find the respective correlation coefficients. Preliminary results with limited processed data showed that the correlation coefficients are approximately 0.6. Sample maps of wave and wind (satellite derived) in 2.5 degrees x 2.5 degrees grids have been prepared. The results are expected to be useful in studying the seasonal variations of sea-state and wave parameters
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