Journal
ATMOSPHERIC SCIENCE LETTERS
Volume 9, Issue 1, Pages 1-6Publisher
WILEY
DOI: 10.1002/asl.162
Keywords
cyclone cooling; upper ocean processes; Bay of Bengal
Funding
- National Institute of Ocean Technology, Chennai
- NASA/Remote Sensing Systems
- Department of Ocean Development, New Delhi
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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. Copyright (C) 2007 Royal Meteorological Society
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