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The interannual sea level variability in the Indian Ocean as simulated by an Ocean General Circulation Model
Author(s) -
Deepa J. S.,
Gnanaseelan C.,
Kakatkar R.,
Parekh A.,
Chowdary J. S.
Publication year - 2017
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/joc.5228
Subject(s) - climatology , indian ocean dipole , ocean general circulation model , ocean heat content , forcing (mathematics) , subtropical indian ocean dipole , sea surface height , downwelling , ocean current , altimeter , thermohaline circulation , wind stress , oceanography , ocean gyre , throughflow , ocean dynamics , geology , upwelling , sea surface temperature , general circulation model , climate change , subtropics , geodesy , fishery , soil science , biology
The study finds that co‐occurrence years (years when IOD and El Niño events co‐occur) contribute significantly towards the interannual variability in the Indian Ocean. Carefully designed Ocean General Circulation Model (OGCM) captured the observed variability. The OGCM experiments are carried out by modulating the forcing fields over the Pacific and the Indian Ocean to understand the physical mechanisms causing sea level variability in the Indian Ocean. Decadal variability in the ENSO is primarily contributing to the decadal variability in the Indian Ocean sea level.