Air-sea interaction over the tropical Indian Ocean during several contrasting monsoon seasons |
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| Authors: | M R Ramesh Kumar J S Sastry |
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| Institution: | (1) Physical Oceanography Division, National Institute of Oceanography, Dona Paula 403004 Goa, India |
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| Abstract: | Monthly mean anomaly fields of various parameters like sea surface temperature, air temperature, wind stress, effective radiation
at the surface, heat gain over the ocean and the total heat loss between a good and bad monsoon composite and the evaporation
rates over the Arabian Sea and southern hemisphere have been studied over the tropical Indian Ocean. The mean rates of evaporation
on a seasonal scale over the Arabian Sea during a good and bad monsoon composites were equal (about 2·48 × 1010 tons/day). The evaporation rates over the southern hemisphere were greater during all the months. The mean evaporation rates
over the southern hemisphere on a seasonal scale for the good and bad monsoon composites were 4·4 × 1010 and 4·6 × 1010 tons/day respectively. The maximum evaporation rates over the southern hemisphere were observed in August. The anomalies
of wind stress, effective radiation at the surface and the heat gain over the ocean also exhibit large variations in August,
as compared to other monsoon months. |
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| Keywords: | Air-sea interaction Indian ocean monsoon anomaly sea surface temperature air temperature wind stress |
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