Progress of regional oceanography study associated with western boundary current in the South China Sea
Wang DongXiao1; Liu QinYan1; Xie Qiang1,2; He ZhiGang3; Zhuang Wei1; Shu YeQiang1; Xiao XianJun4; Hong Bo5; Wu XiangYu6; Sui DanDan1
2013-04-01
发表期刊CHINESE SCIENCE BULLETIN
卷号58期号:11页码:1205-1215
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.
文章类型Review
关键词South China Sea Western Boundary Current Eddy Eddy-current Interaction Intraseasonal Variability South China Sea Thoughflow
WOS标题词Science & Technology
DOI10.1007/s11434-012-5663-4
收录类别SCI
语种英语
关键词[WOS]UPPER-LAYER CIRCULATION ; INTERANNUAL VARIABILITY ; INDONESIAN THROUGHFLOW ; ALTIMETER DATA ; LUZON STRAIT ; TOPEX/POSEIDON ALTIMETRY ; SEASONAL VARIABILITY ; SATELLITE ALTIMETRY ; MESOSCALE EDDIES ; SURFACE HEIGHT
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000318127300001
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/734
专题深海科学研究部_海洋环流观测与数值模拟研究室
作者单位1.Chinese Acad Sci, State Key Lab Trop Oceanog, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
2.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya 572028, Peoples R China
3.Xiamen Univ, Coll Ocean & Earth Sci, Xiamen 361005, Peoples R China
4.Chinese Meteorol Adm, Natl Climate Ctr, Beijing 100081, Peoples R China
5.Coll William & Mary, Virginia Inst Marine Sci, Williamsburg, VA 23186 USA
6.State Ocean Adm, Natl Marine Environm Forecasting Ctr, Beijing 100081, Peoples R China
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Wang DongXiao,Liu QinYan,Xie Qiang,et al. Progress of regional oceanography study associated with western boundary current in the South China Sea[J]. CHINESE SCIENCE BULLETIN,2013,58(11):1205-1215.
APA Wang DongXiao.,Liu QinYan.,Xie Qiang.,He ZhiGang.,Zhuang Wei.,...&Sui DanDan.(2013).Progress of regional oceanography study associated with western boundary current in the South China Sea.CHINESE SCIENCE BULLETIN,58(11),1205-1215.
MLA Wang DongXiao,et al."Progress of regional oceanography study associated with western boundary current in the South China Sea".CHINESE SCIENCE BULLETIN 58.11(2013):1205-1215.
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