Open AccessCyclone‐induced mixing does not cool SST in the post‐monsoon north Bay of Bengal
Author(s) -
Sengupta Debasis,
Goddalehundi Bharath Raj,
Anitha D. S.
Publication year - 2007
Publication title -
atmospheric science letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.951
H-Index - 45
ISSN - 1530-261X
DOI - 10.1002/asl.162
Subject(s) - bay , monsoon , bengal , climatology , tropical cyclone , oceanography , environmental science , sea surface temperature , hydrography , storm , cyclone (programming language) , geology , field programmable gate array , computer science , computer hardware
High‐resolution data from the TRMM satellite shows that sea surface temperature (SST) cools by 3 °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 © 2007 Royal Meteorological Society