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Bay of Bengal summer monsoon 10–20 day variability in sea surface temperature using model and observations
Author(s) -
Agarwal Neeraj,
Sharma Rashmi,
Basu Sujit,
Parekh Anant,
Sarkar Abhijit,
Agarwal Vijay K.
Publication year - 2007
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2007gl029296
Subject(s) - buoy , bay , climatology , sea surface temperature , environmental science , bengal , monsoon , shortwave , flux (metallurgy) , ocean general circulation model , heat flux , satellite , atmospheric sciences , oceanography , geology , general circulation model , climate change , heat transfer , radiative transfer , aerospace engineering , physics , materials science , quantum mechanics , engineering , metallurgy , thermodynamics
Observed sea surface temperature (SST) in the Bay of Bengal exhibits intraseasonal variability during summer monsoon. An ocean general circulation model (OGCM) driven by satellite derived daily winds and heat fluxes during summer of 2000 is able to reproduce aspects of intraseasonal variability (10–20 days) in SST. The intra‐seasonal SST simulated using satellite derived shortwave flux compares more favorably with buoy data than that produced using the NCEP reanalysis flux. Analysis of the terms in the heat balance equation of MLD suggests that in the central Bay of Bengal local net heat flux and vertical diffusive mixing changes drive the SST ISOs. Thus, the SST ISOs in this region are governed primarily by one‐dimensional processes.