Abstract

Author Posting. © The Oceanography Society, 2016. This article is posted here by permission of The Oceanography Society for personal use, not for redistribution. The definitive version was published in Oceanography 29, no. 2 (2016): 202–213, doi:10.5670/oceanog.2016.52.

Highlights

  • Sea surface temperature (SST) in the Bay of Bengal (BoB) strongly influences the spatiotemporal evolution of precipitation over the Indian subcontinent (e.g., Shenoi et al, 2002)

  • Penetrative Shortwave Radiation that net surface heat flux is the primary factor in determining the seasonal variation of SST in the BoB, ocean dynamics plays a crucial role (Rao and Sivakumar, 2000; Sengupta et al, 2002; Shenoi et al, 2002; Prasad, 2004; Boyer Montégut et al, 2007; Parampil et al, 2010; Girishkumar et al, 2013; Nagura et al, 2015)

  • During the winter cooling period, a reduction in surface heat flux leads to a decrease in mixed layer (ML) temperature, with maximum cooling in the northern BoB

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Summary

Introduction

Sea surface temperature (SST) in the Bay of Bengal (BoB) strongly influences the spatiotemporal evolution of precipitation over the Indian subcontinent (e.g., Shenoi et al, 2002). All of these studies highlight the importance of net surface heat flux and near-surface salinity stratification for the evolution of SST variability in the BoB (Rao and Sivakumar, 2000; Sengupta et al, 2001, 2002; Sengupta and Ravichandran, 2001; Shenoi et al, 2002; Boyer Montégut et al, 2007; Parampil et al, 2010) These studies suggest that the barrier layer and temperature inversion play significant roles in the evolution of SST in the BoB (Shenoi et al, 2002; Prasad, 2004; Boyer Montégut et al, 2007; Sengupta et al, 2007; Girishkumar et al, 2013; Nagura et al, 2015). Some studies highlight the importance of heat flux from the subsurface to the ML, due to vertical processes, on the evolution of SST in the BoB (Prasad, 2004; Boyer Montégut et al, 2007; Girishkumar et al, 2013; Nagura et al, 2015)

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