首页|期刊导航|大气和海洋科学快报(英文版)|A new presentation of the Indian Ocean shallow overturning circulation from a vertical perspective
大气和海洋科学快报(英文版)2021,Vol.14Issue(5):56-61,6.
A new presentation of the Indian Ocean shallow overturning circulation from a vertical perspective
A new presentation of the Indian Ocean shallow overturning circulation from a vertical perspective
摘要
Abstract
由于印尼贯穿流干扰了南印度洋经向翻转环流的计算,本文应用垂向翻转流函数来诊断印度洋浅层经向翻转环流.基于海洋环流模拟产品(OFES),本文探讨了垂向流函数相比经向翻转流函数的改进.研究结果表明垂向翻转流函数能平滑连接南北印度洋的翻转环流,包括完整的副热带翻转环流和跨赤道翻转环流.经向翻转流函数低估了印度洋浅层翻转环流;而垂向翻转流函数表示的印度洋浅层翻转环流受印尼贯穿流影响更小,其评估的印度洋浅层翻转环流强度约13 Sv,其中副热带翻转环流强度约8 Sv(1 Sv ≡ 106 m3 s-1).此外,垂向翻转流函数在印度洋南开边界(30°S~34°S)上600 m层表现为顺时针翻转结构,其强度约-5 Sv,可能对应风驱的副热带流系.因此,垂向翻转流函数提供了一种新方法来评估印度洋浅层翻转环流.关键词
印度洋/浅层翻转环流/经向翻转流函数/垂向翻转流函数Key words
Indian Ocean/Shallow overturning circulation/Meridional overturning streamfunction/Vertical overturning streamfunction引用本文复制引用
Tiecheng Zhang,Weiqiang Wang,Qiang Xie,Kexiu Liu,Dongxiao Wang,Xinrong Wu,Xiaoshuang Zhang,Kang Xu,Wenya Yuan..A new presentation of the Indian Ocean shallow overturning circulation from a vertical perspective[J].大气和海洋科学快报(英文版),2021,14(5):56-61,6.基金项目
This study was jointly supported by the National Key Research and Development Program of China[grant number 2016YFC1401803],the National Natural Science Foundation of China[grant numbers 41976019 and 42076020],the Strategic Priority Research Program of the Chinese Academy of Sciences[grant number XDA20060502],the open project of the State Key Laboratory of Tropical Oceanography,South China Sea Institute of Oceanology,Chinese Academy of Sciences[grant number LTO1910],the Research Program of the Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)[grant number GML2019ZD0306],and the Key Research Program of the Chi-nese Academy of Sciences[grant number ZDRW-XH-2019-2]. (Guangzhou)