首页|期刊导航|中国海洋湖沼学报（英文版）|Variations in the eastern Indian Ocean warm pool and its relation to the dipole in the tropical Indian Ocean
中国海洋湖沼学报（英文版）2009，Vol.27Issue(3)：640-649,10.DOI:10.1007/s00343-009-9148-5
Variations in the eastern Indian Ocean warm pool and its relation to the dipole in the tropical Indian Ocean
Variations in the eastern Indian Ocean warm pool and its relation to the dipole in the tropical Indian Ocean
摘要
Abstract
Based on the monthly average SST and 850 hPa monthly average wind data, the seasonal, interannual and long-term variations in the eastern Indian Ocean warm pool (EIWP) and its relationship to the Indian Ocean Dipole (IOD), and its response to the wind over the Indian Ocean are analyzed in this study. The results show that the distribution range, boundary and area of the EIWP exhibited obviously seasonal and interannual variations associated with the ENSO cycles. Further analysis suggests that the EIWP had obvious long-term trend in its bound edge and area, which indicated the EIWP migrated westwards by about 14 longitudes for its west edge, southwards by about 5 latitudes for its south edge and increased by 3.52×106 km2 for its area, respectively, from 1950 to 2002. The correlation and composite analyses show that the anomalous westward and northward displacements of the EIWP caused by the easterly wind anomaly and the southerly wind anomaly over the eastern equatorial Indian Ocean played an important and direct role in the formation of the IOD.关键词
the Indian Ocean/ warm pool/ ENSO/ dipoleKey words
the Indian Ocean/ warm pool/ ENSO/ dipole引用本文复制引用
ZHANG Qilong,HOU Yijun,QI Qinghua,BAI Xuezhi..Variations in the eastern Indian Ocean warm pool and its relation to the dipole in the tropical Indian Ocean[J].中国海洋湖沼学报（英文版）,2009,27(3):640-649,10.基金项目
Supported by the National Key Basic Research Development Program of China (973 Program)(No. 2006CB403606), the Knowledge Innovation Program of Chinese Academy of Sciences (KZCX1-YW-12) and the National Natural Science Foundation of China (No. 40306006) （973 Program）
