The warm pool in the Indian Ocean

Vinayachandran, P. N. ; Shetye, S. R. (1991) The warm pool in the Indian Ocean Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences, 100 (2). pp. 165-175. ISSN 0253-4126

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The structure of the warm pool (region with temperature greater than 28°C) in the equatorial Indian Ocean is examined and compared with its counterpart in the Pacific Ocean using the climatology of Levitus. Though the Pacific warm pool is larger and warmer, a peculiarity of the pool in the Indian Ocean is its seasonal variation. The surface area of the pool changes from 24 × 106 km2 in April to 8 × 106 km2 in September due to interaction with the southwest monsoon. The annual cycles of sea surface temperature at locations covered by the pool during at least a part of the year show the following modes: (i) a cycle with no significant variation (observed in the western equatorial Pacific and central and eastern equatorial Indian Ocean), (ii) a single maximum/minimum (northern and southern part of the Pacific warm pool and the south Indian Ocean), (iii) two maxima/minima (Arabian Sea, western equatorial Indian Ocean and southern Bay of Bengal), and (iv) a rapid rise, a steady phase and a rapid fall (northern Bay of Bengal).

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Warm Pool; Equatorial Pacific Ocean; Equatorial Indian Ocean; Sea Surface Temperature; Annual Cycle
ID Code:54080
Deposited On:11 Aug 2011 12:02
Last Modified:18 May 2016 06:56

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