The summer-fall anticyclonic eddy west of Luzon: Structure and evolution in 2012 and interannual variability
Wang, X; Fang, WD; Chen, RY; Cai, SQ; wdfang@scsio.ac.cn
2017
发表期刊JOURNAL OF MARINE SYSTEMS
卷号172页码:84-92
摘要The Conductivity-Temperature-Depth (CTD) and acoustic Doppler current profiler (ADCP) measurements along 18 degrees N off the western Luzon in the South China Sea (SCS), collected during a cruise from August 12-14,2012, were used to explore the vertical structure of an anticyclonic eddy (AE) during the observational period. Further, the French Archiving, Validation and Interpretation of Satellite Oceanographic data (AVISO) sea level anomaly (SLA) and corresponding anomalous surface geostrophic velocity were used to study the temporal evolution of the AE. The vertical structure of the AE along 18 degrees N in August 2012 showed a trough located near 117.5 degrees E. The AE extended vertically downward and its distinct feature was identifiable to 200 m depth. Seasonal variations of SIA indicate that the AE lasted for 5 months (June to early November), going through the growth and nearly stationary period from mid-June to late August and then propagating westward along 18 degrees N with varying phase speeds and shapes to the continental slope off the southeastern Hainan Island during late September to November. Furthermore, T-S characteristics suggest that the AE was generated off the western Luzon. Interannual variations of the summer (July-September) SLA presented by Empirical Orthogonal Function analysis, indicates that the local circulation was enhanced by the anomalous anticyclonic eddy along 18 degrees N in the years of 2008, 2010, 2012 and 2013 during the period from1993 to 2014. (c) 2017 Elsevier B.V. All rights reserved.
部门归属[Wang, Xia] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou, Guangdong, Peoples R China; [Wang, Xia; Fang, Wendong; Chen, Rongyu; Cai, Shuqun] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China; [Wang, Xia] Univ Chinese Acad Sci, Beijing, Peoples R China
关键词Anticyclonic Eddy Structure And Evolution South China Sea
资助项目LTO
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/16459
专题热带海洋环境国家重点实验室(LTO)
通讯作者wdfang@scsio.ac.cn
推荐引用方式
GB/T 7714
Wang, X,Fang, WD,Chen, RY,et al. The summer-fall anticyclonic eddy west of Luzon: Structure and evolution in 2012 and interannual variability[J]. JOURNAL OF MARINE SYSTEMS,2017,172:84-92.
APA Wang, X,Fang, WD,Chen, RY,Cai, SQ,&wdfang@scsio.ac.cn.(2017).The summer-fall anticyclonic eddy west of Luzon: Structure and evolution in 2012 and interannual variability.JOURNAL OF MARINE SYSTEMS,172,84-92.
MLA Wang, X,et al."The summer-fall anticyclonic eddy west of Luzon: Structure and evolution in 2012 and interannual variability".JOURNAL OF MARINE SYSTEMS 172(2017):84-92.
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