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Journal of Geology & Geophysics
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Research Article

Tropical Indian Ocean Surface and Subsurface Temperature Fluctuations in a Climate Change Scenario

Muni Krishna K1*, Guiting Song2, Dennis Jack3 and Manjunatha BR4
1Department of Meteorology and Oceanography, Andhra University, Visakhapatnam, India
2Department of Marine Science, Zhejiang Ocean University, China
3Departamento de Astronomia Universidad de Guanajuato, Mexico
4Department of Marine Geology, Mangalore University, Mangalagangotri, India
*Corresponding Author : Muni Krishna K
Department of Meteorology and Oceanography
Andhra University, Visakhapatnam, India
Tel: 08912844633
E-mail: [email protected]
Received December 23, 2013; Accepted March 05, 2014; Published March 14, 2014
Citation: Krishna KM, Song G, Jack D, Manjunatha BR (2014) Tropical Indian Ocean Surface and Subsurface Temperature Fluctuations in a Climate Change Scenario. J Geol Geosci 3:152. doi:10.4172/2329-6755.1000152
Copyright: © 2014 Krishna KM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Tropical Indian Ocean temperature plays a vital on Indian monsoon system and also cyclone genesis. The feature and evolution mechanisms of the tropical Indian Ocean temperature between pre warming and warming period and also during Indian Ocean Dipole (IOD) events that co-occurred with El Niño are studied using Simple Ocean Data Assimilation (SODA) data set. The southeastern Arabian Sea, Western Arabian Sea and Seychelles Chaogos Thermocline Ridge regions subsurface temperature anomalies are cooled and the southern gyre, south Bay of Bengal, off java regions show warming trend from surface to subsurface. During the positive IOD with co-occurred El Nino years in a climate change period (1970-2008) surface warm temperatures are extended from the Sumatra region to off the African coast in pre-monsoon season. But the subsurface temperature shows different pattern, the warming is more in the central Arabian Sea and south Bay of Bengal (BoB) area.

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