On some aspects of Indian Ocean warm pool

Abstract

Annual and interannual variation of Indian Ocean Warm Pool (IOWP) was studied using satellite and in situ ocean temperature data IOWP surface area undergoes a strong annual cycle attaining a maximum of 24x10⁶km² during April and minimum of 10x10⁶km² in August Unlike surface area, warm pool was deeper (90m) during August than in April Higher vertical extent was found both at eastern equatorial Indian Ocean and south-eastern Arabian Sea Frequency distribution of temperatures at one degree interval (28-29, 29-30, 30-31) exhibited independent seasonal variations The interannual variation of IOWP was found to be associated with ENSO events.