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Cyclone-induced mixing does not cool SST in the post-monsoon north Bay of Bengal

Sengupta, Debasis and Goddalehundi, Bharath Raj and Anitha, DS (2008) Cyclone-induced mixing does not cool SST in the post-monsoon north Bay of Bengal. In: Atmospheric Science Letters, 9 (1). pp. 1-6.

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Official URL: http://www3.interscience.wiley.com/journal/1178655...

Abstract

High-resolution data from the TRMM satellite shows that sea surface temperature (SST) cools by 3 degrees C under the tracks of pre-monsoon tropical cyclones in the north Indian Ocean. However, even the strongest post-monsoon cyclones do not cool the open north Bay of Bengal. In this region, a shallow layer of freshwater from river runoff and monsoon rain caps a deep warm layer. Therefore, storm-induced mixing is not deep, and it entrains warm subsurface water. It is possible that the hydrography of the post-monsoon north Bay favours intense cyclones.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Royal Meteorological Society.
Keywords: cyclone cooling;upper ocean processes;Bay of Bengal.
Department/Centre: Division of Mechanical Sciences > Centre for Atmospheric & Oceanic Sciences
Date Deposited: 30 Apr 2009 04:28
Last Modified: 28 Aug 2009 12:02
URI: http://eprints.iisc.ernet.in/id/eprint/19654

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