Features and variability of the South China Sea western boundary current from 1992 to 2011
Quan, Qi; Xue, Huijie; Qin, Huiling; Zeng, Xuezhi; Peng, Shiqiu; Xue, HJ (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China.; Xue, HJ (reprint author), Univ Maine, Sch Marine Sci, Orono, ME 04469 USA.
2016
发表期刊OCEAN DYNAMICS
卷号66期号:2016-06-07页码:795-810
摘要Different from the traditional definition of the South China Sea western boundary current (SCSWBC), in this paper, only the southwestward and southward currents along the northern and western slopes in the SCS, which are closely associated with the basin-wide wind stress curl, are defined as the SCSWBC, while the flows on the southwestern shelf driven directly by the local wind stress are regarded as part of the shelf circulation. Using a new reanalysis dataset of the SCS in conjunction with the in situ and remote sensing data, the main features and variability of the SCSWBC from 1992 to 2011 were studied. Dictated by the prevailing monsoonal winds and in- and outflows, the SCSWBC in winter extended the full length of the western slope and reached its maximum intensity off the southeast coast of Vietnam, while in summer the main body of the SCSWBC was limited to the northern half of the western slope and merged with the northward coastal current to form the Vietnam Offshore Current (VOC) at about 12A degrees N. Moreover, the respective seasonal patterns of the SCSWBC showed pronounced interannual variations in its structure, including the axis, the width, and the maximum depth. The strength of the SCSWBC, with the transport of -11.8 A +/- 3.5 Sv in winter and -3.0 A +/- 1.6 Sv in summer off the central coast of Vietnam, also varied significantly from year to year. It was demonstrated that the monsoonal forcing over the SCS, the interannual variability of which was closely associated with El Nio events, played an important role in modulating the interannual variability of the SCSWBC, whereas the influence from the upper-layer Luzon Strait transport was secondary.
部门归属[Quan, Qi; Xue, Huijie; Qin, Huiling; Peng, Shiqiu] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [Quan, Qi] Univ Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China; [Xue, Huijie] Univ Maine, Sch Marine Sci, Orono, ME 04469 USA; [Zeng, Xuezhi] State Ocean Adm, South China Sea Marine Predict Ctr, Guangzhou 510301, Guangdong, Peoples R China ; LTO
关键词South China Sea Western Boundary Current Features And Variability El Nino Monsoon Luzon Strait Transport
学科领域Oceanography
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/15356
专题热带海洋环境国家重点实验室(LTO)
通讯作者Xue, HJ (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China.; Xue, HJ (reprint author), Univ Maine, Sch Marine Sci, Orono, ME 04469 USA.
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Quan, Qi,Xue, Huijie,Qin, Huiling,et al. Features and variability of the South China Sea western boundary current from 1992 to 2011[J]. OCEAN DYNAMICS,2016,66(2016-06-07):795-810.
APA Quan, Qi.,Xue, Huijie.,Qin, Huiling.,Zeng, Xuezhi.,Peng, Shiqiu.,...&Xue, HJ .(2016).Features and variability of the South China Sea western boundary current from 1992 to 2011.OCEAN DYNAMICS,66(2016-06-07),795-810.
MLA Quan, Qi,et al."Features and variability of the South China Sea western boundary current from 1992 to 2011".OCEAN DYNAMICS 66.2016-06-07(2016):795-810.
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