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学科主题: Oceanography
题名: Evolution of an anticyclonic eddy southwest of Taiwan
作者: [Zu, Tingting ; Wang, Dongxiao ; Zhuang, Wei ; Chen, Ju] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China ; [Yan, Changxiang] Chinese Acad Sci, Inst Atmospher Phys, Int Ctr Climate & Environm Sci, Beijing 100029, Peoples R China ; [Belkin, Igor] Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA
通讯作者: dxwang@scsio.ac.cn
关键词: Anticyclonic eddy ; Kuroshio intrusion ; Monsoon wind ; South China Sea ; Taiwan
刊名: OCEAN DYNAMICS
发表日期: 2013
卷: 63, 期:5, 页:519-531
部门归属: LTO
资助者: We are grateful for the two anonymous reviewers, who have provided many thoughtful comments and suggestions which led to great improvements of the manuscript. We also thank Gengxin Chen, Xiaopei Lin and Huijie Xue for their helpful discussions, and thank Huijie Xue and Changming Dong for providing their codes of energy calculation and eddy detection. This research work was supported by the 973 program (2011CB403504 and 2010CB950401) and the Guangdong Natural Science Foundation (S2011010001001).
摘要: Satellite images of sea-surface temperature, surface chlorophyll a concentration, and sea-level anomaly, together with ocean reanalysis data of Asia and Indian-Pacific Ocean (AIPOcean1.0), are utilized to study the three-dimensional characteristics and evolution of an anticyclonic warm eddy adjacent to the southwest coast of Taiwan during October and November 2006. Originated from the Kuroshio intrusion in the Luzon Strait, but unlike previously found westward moving anticyclonic eddies (AE) in the northeastern South China Sea, this AE was so close to the Taiwan coast and stayed where it was formed for over 1 month until it dissipated. Energy analysis is utilized to study the evolution process of the AE, and it shows that the barotropic instability (BTI) and baroclinic instability introduced by the Kuroshio intrusion flow appear to be the main energy sources for the AE. Periodical enhancement/relaxation of local northeasterly monsoon and its associated negative wind stress curl modify the current patterns in this region, reinforce the intraseasonal variability of the Kuroshio intrusion flow, and act together with Kuroshio to form the AE. Eddies detected from AIPOcean1.0 data also show that AEs are most likely to be generated southwest of Taiwan during the transition period of summer monsoon to winter monsoon, and generally, the BTI of Kuroshio intrusion contributes more than the direct wind stress work to the increase of the eddy kinetic energy for the generation and growth of the AEs.
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000318515300005
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10913
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Recommended Citation:
[Zu, Tingting; Wang, Dongxiao; Zhuang, Wei; Chen, Ju] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [Yan, Changxiang] Chinese Acad Sci, Inst Atmospher Phys, Int Ctr Climate & Environm Sci, Beijing 100029, Peoples R China; [Belkin, Igor] Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA.Evolution of an anticyclonic eddy southwest of Taiwan,OCEAN DYNAMICS,2013,63(5):519-531
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