| Response of the cold water mass in the western South China Sea to the wind stress curl associated with the summer monsoon |
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| 作者姓名： | ZHUANG Wei WANG Dongxiao HU Jianyu NI Wensheng |
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| 作者单位： | ZHUANG Wei 1，WANG Dongxiao 1*，HU Jianyu 2，NI Wensheng 31. Key Laboratory of Tropical Marine Environmental Dynamics，South China Sea Institute of Oceanology，Chinese Academy of Sciences，Guangzhou 510301，China 2. State Key Laboratory of Marine Environmental Science，Department of Oceanography，Xiamen University，Xiamen 361005，China 3. East China Sea Branch，State Oceanic Administration，Shanghai 200137，China |
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| 基金项目： | 中国科学院基金;国家自然科学基金 |
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| 摘 要： | 1Introduction TheSouthChinaSea(SCS)isasemi enclosed tropicalmarginalseawithcomplextopographyand numerousislands(seeFig.1)andtheonlydeep channelbetweentheSCSandtheadjacentPhilippine SeaistheLuzonStrait.TheclimateoftheSCSis controlledbytheEastAsianmonsoonsy…
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| 关 键 词： | 季风 南海 越南 季节性上升流 |
| 收稿时间： | 2006-02-12 |
| 修稿时间： | 2006-02-122006-05-30 |
Response of the cold water mass in the western South China Sea to the wind stress curl associated with the summer monsoon |
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| ZHUANG Wei,WANG Dongxiao,HU Jianyu,NI Wensheng.Response of the cold water mass in the western South China Sea to the wind stress curl associated with the summer monsoon[J].Acta Oceanologica Sinica,2006,25(4):1-13. |
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| Authors: | ZHUANG Wei WANG Dongxiao HU Jianyu and NI Wensheng |
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| Institution: | 1.Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China2.State Key Laboratory of Marine Environmental Science, Department of Oceanography, Xiamen University, Xiamen 361005, China3.East China Sea Branch, State Oceanic Administration, Shanghai 200137, China |
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| Abstract: | Analysis of climatological observation temperature data reveals that during the southwesterly monsoon, there exists a low temperature zone east of Vietnam. It cools down from June to August and warms up in September. Meanwhile, during this period, the cold water mass spreads eastward to the deep basin. Numerical experiments validate the results of data analysis and further verify that there are two basic factors that induce the Vietnam cold water. The major one is the strong local positive wind stress curl, which leads to the divergence of sea surface water and the upward supplement of lower layer water in the deep basin. Another minor one is the alongshore component of southwesterly monsoon, which drives the offshore Ekman transport and coastal upwelling in the shallow region along the Vietnam coast. In addition, the negative wind stress curl in the southern South China Sea inputs negative vorticity to the ocean and drives a strong anticyclonic gyre, which affects the spatial distribution of the cold water evidently. |
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| Keywords: | Vietnam seasonal upwelling wind stress curl |
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