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学科主题: Multidisciplinary Sciences
题名: Progress of regional oceanography study associated with western boundary current in the South China Sea
作者: [Wang DongXiao ; Liu QinYan ; Xie Qiang ; Zhuang Wei ; Shu YeQiang ; Sui DanDan] Chinese Acad Sci, State Key Lab Trop Oceanog, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China ; [Xie Qiang] Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya 572028, Peoples R China ; [He ZhiGang] Xiamen Univ, Coll Ocean & Earth Sci, Xiamen 361005, Peoples R China ; [Xiao XianJun] Chinese Meteorol Adm, Natl Climate Ctr, Beijing 100081, Peoples R China ; [Hong Bo] Coll William & Mary, Virginia Inst Marine Sci, Williamsburg, VA 23186 USA ; [Wu XiangYu] State Ocean Adm, Natl Marine Environm Forecasting Ctr, Beijing 100081, Peoples R China
通讯作者: qyliu66@scsio.ac.cn
关键词: South China Sea ; western boundary current ; eddy ; eddy-current interaction ; intraseasonal variability ; South China Sea thoughflow
刊名: CHINESE SCIENCE BULLETIN
发表日期: 2013
卷: 58, 期:11, 页:1205-1215
部门归属: LTO
资助者: This work was supported by the National Basic Research Program of China (2011CB403504), the Knowledge Innovation Program of the Chinese Academy of Sciences (KZCX2-EW-Y040), and the National Natural Science Foundation of China (40830851). The three anonymous reviewers provided helpful suggestions on the manuscript.
摘要: Recent progress of physical oceanography in the South China Sea (SCS) associated with the western boundary current (WBC) and eddies is reviewed in this paper. It includes Argo observations of the WBC, eddy detection in the WBC based on satellite images, cross-continental shelf exchange in the WBC, eddy-current interaction, interannual variability of the WBC, air-sea interaction, the SCS throughflow (SCSTF), among others. The WBC in the SCS is strong, and its structure, variability and dynamic processes on seasonal and interannual time scales are yet to be fully understood. In this paper, we summarize progresses on the variability of the WBC, eddy-current interaction, air-sea interaction, and the SCSTF achieved in the past few years. Firstly, using the drifting buoy observations, we point out that the WBC becomes stronger and narrower after it reaches the central Vietnam coast. The possible mechanisms influencing the ocean circulation in the northern SCS are discussed, and the dynamic mechanisms that induce the countercurrent in the region of northern branch of WBC in winter are also studied quantitatively using momentum balance. The geostropic component of the WBC was diagnosed using the ship observation along 18 degrees N, and we found that the WBC changed significantly on interannual time scale. Secondly, using the ship observations, two anti-cyclonic eddies in the winter of 2003/2004 in the northern SCS, and three anti-cyclonic eddies in the summer of 2007 along 18 degrees N were studied. The results show that the two anti-cyclonic eddies can propagate southwestward along the continental shelf at the speed of first Rossby wave (similar to 0.1 m s(-1)) in winter, and the interaction between the three anti-cyclonic eddies in summer and the WBC in the SCS is preliminarily revealed. Eddies on the continental shelf of northern SCS propagated southeastward with a maximum speed of 0.09 m s(-1), and those to the east of Vietnam coast had the largest kinetic energy, both of which imply strong interaction between eddy activity and WBC in the SCS. Thirdly, strong intraseasonal variability (ISV) of sea surface temperature (SST) near the WBC regions was found, and the ISV signal of SST in winter weakens the ISV signal of latent heat flux by 20%. Fourthly, the long-term change of SCSTF volume transport and its connection with the ocean circulation in the Pacific were discussed.
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000318127300001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10921
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[Wang DongXiao; Liu QinYan; Xie Qiang; Zhuang Wei; Shu YeQiang; Sui DanDan] Chinese Acad Sci, State Key Lab Trop Oceanog, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Xie Qiang] Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya 572028, Peoples R China; [He ZhiGang] Xiamen Univ, Coll Ocean & Earth Sci, Xiamen 361005, Peoples R China; [Xiao XianJun] Chinese Meteorol Adm, Natl Climate Ctr, Beijing 100081, Peoples R China; [Hong Bo] Coll William & Mary, Virginia Inst Marine Sci, Williamsburg, VA 23186 USA; [Wu XiangYu] State Ocean Adm, Natl Marine Environm Forecasting Ctr, Beijing 100081, Peoples R China.Progress of regional oceanography study associated with western boundary current in the South China Sea,CHINESE SCIENCE BULLETIN,2013,58(11):1205-1215
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