Understanding the origins of interannual thermocline variations in the tropical Indian Ocean
Understanding the origins of interannual thermocline variations in the tropical Indian Ocean
复制标题
了解热带印度洋温跃层年际变化的起源
DOI：
10.1029/2005gl024327
复制
发表时间：
2005-12-20
影响因子：
5.2
通讯作者：
Liu, N
中科院分区：
文献类型：
--
作者：
Yu, WD;Xiang, BQ;Liu, N
结果表明，与印度洋偶极子(IOD)或印度洋纬向偶极子模(IOZDM)相关的大气变化是由赤道南北两侧的一对反气旋和伴随着强烈的赤道东风异常构成的，而与厄尔尼诺/南方涛动(ENSO)相关的大气变化包括位于高纬度的东南热带印度洋(TO)的强反气旋，以及爪哇-苏门答腊岛沿岸附近的强沿岸风异常。不同的大气强迫模式导致与IOD/IOZDM相关的海洋温跃层变化更多地局限在10°S以北，而ENSO引起的温跃层变化主要集中在10°S以南。
Based on the data analysis of the 1000 hPa wind, SST and SSH anomalies, it is revealed that the atmospheric variations associated with Indian Ocean Dipole (IOD, or referred as Indian Ocean Zonal Dipole Mode, IOZDM) consist of a pair of anticyclones closely north and south of the equator with accompanying intense equatorial easterly anomalies, while the atmospheric variations related to El Niño/Southern Oscillation (ENSO) include a strong anticyclone in the southeastern tropical Indian Ocean (TIO) at higher latitudes with strong along‐shore wind anomalies near Java‐Sumatra coast. The different atmospheric forcing patterns lead to the fact that oceanic thermocline variations associated with IOD/IOZDM are more closely confined to the region north of 10°S, while ENSO‐induced thermocline variations are dominant south of 10°S.