The features and interannual variability mechanism of mesoscale eddies in the Bay of Bengal
Chen, GX; Wang, DX; Hou, YJ; dxwang@scsio.ac.cn
2012
发表期刊CONTINENTAL SHELF RESEARCH
ISSN0278-4343
卷号47页码:178-185
摘要Eddy activity has been examined in many regions of the world ocean. However, the mechanism behind interannual variability of mesoscale eddies remains uncertain. Although eddies can be frequently observed in the Bay of Bengal (BOB), there is no thorough statistical assessment of eddy activity in the bay. Here, we use altimeter data and ocean reanalysis data to show the genesis, propagation, mean properties and the spatiotemporal variability of eddies in the BOB. Energy analysis suggests the interannual variation of eddy kinetic energy (EKE) in the BOB depends on that of perturbation kinetic energy induced by mesoscale eddies. Eddy activity at interannual scale is sensitive to the baroclinic instability of the background flow. When the baroclinic instability is stronger, more energy is converted from the mean flow to the eddy energy, which makes eddies stronger and more stable but fewer in number. The west coast of the BOB is a critical region for eddy-mean flow interaction. (c) 2012 Elsevier Ltd. All rights reserved.
部门归属[Chen, Gengxin; Wang, Dongxiao] Chinese Acad Sci, State Key Lab Trop Oceanog, S China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China; [Hou, Yijun] Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
关键词Eddy Bay Of Bengal Interannual Variability Baroclinic Instability
学科领域Oceanography
语种英语
资助项目LTO
WOS记录号WOS:000310403800017
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被引频次:28[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10105
专题热带海洋环境国家重点实验室(LTO)
通讯作者dxwang@scsio.ac.cn
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Chen, GX,Wang, DX,Hou, YJ,et al. The features and interannual variability mechanism of mesoscale eddies in the Bay of Bengal[J]. CONTINENTAL SHELF RESEARCH,2012,47:178-185.
APA Chen, GX,Wang, DX,Hou, YJ,&dxwang@scsio.ac.cn.(2012).The features and interannual variability mechanism of mesoscale eddies in the Bay of Bengal.CONTINENTAL SHELF RESEARCH,47,178-185.
MLA Chen, GX,et al."The features and interannual variability mechanism of mesoscale eddies in the Bay of Bengal".CONTINENTAL SHELF RESEARCH 47(2012):178-185.
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