典型文献
Intraseasonal variability of the surface zonal current in the equatorial Indian Ocean: Seasonal differences and causes
文献摘要：
Using observations and numerical simulations, this study examines the intraseasonal variability of the surface zonal current (u ISV) over the equatorial Indian Ocean, highlighting the seasonal and spatial differences, and the causes of the differences. Large-amplitude u ISV occurs in the eastern basin at around 80°–90°E and near the western boundary at 45°–55°E. In the eastern basin, the u ISV is mainly caused by the atmospheric intraseasonal oscillations (ISOs), which explains 91％ of the standard deviation of the total u ISV. Further analysis suggests that it takes less than ten days for the intraseasonal zonal wind stress to generate the u ISV through the directly forced Kelvin and Rossby waves. Driven by the stronger zonal wind stress associated with the Indian summer monsoon ISO (MISO), the eastern u ISV in boreal summer (May to October) is about 1.5 times larger than that in boreal winter (November to April). In the western basin, both the atmospheric ISOs and the oceanic internal instabilities contribute substantially to the u ISV, and induce stronger u ISV in boreal summer. Energy budget analysis suggests that the mean flow converts energy to the intraseasonal current mainly through barotropic instabilities.
文献关键词：
中图分类号：
作者姓名：
Qingwen Zhong;Gengxin Chen;Yuanlong Li;Qihua Peng;Xiaoqing Chu
作者机构：
State Key Laboratory of Tropical Oceanography,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China;University of Chinese Academy of Sciences,Beijing 100049,China;Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou),Guangzhou 511458,China;Innovation Academy of South China Sea Ecology and Environmental Engineering,Chinese Academy of Sciences,Guangzhou 510075,China;Key Laboratory of Ocean Circulation and Waves,Institute of Oceanology,Chinese Academy of Sciences,Qingdao266237,China
文献出处：
引用格式：
[1]Qingwen Zhong;Gengxin Chen;Yuanlong Li;Qihua Peng;Xiaoqing Chu-.Intraseasonal variability of the surface zonal current in the equatorial Indian Ocean: Seasonal differences and causes)[J].海洋学报（英文版）,2022(05):12-26,中插1-中插4
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B类：
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AB值：
0.515679
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