SCSIO OpenIR  > 热带海洋环境国家重点实验室(LTO)
Delving into three-dimensional structure of the West Luzon Eddy in a regional ocean model
Wang, L; Gan, JP; magan@ust.hk
2014
Source PublicationDEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
ISSN0967-0637
Volume90Pages:48-61
AbstractThe three-dimensional structure and associated dynamics of the prominent cold (cyclonic) West Luzon Eddy (WLE) were investigated by a high-resolution regional ocean model. The WLE was horizontally and vertically heterogeneous, exhibiting asymmetric structures in the circulation, vorticity, vertical motion and energy distributions within the eddy. The asymmetry was mainly attributed to the existence of an eddy dipole formed by a coexisting warm (anti-cyclonic) eddy to the south of the WLE. Analysis of the momentum balance revealed that the coexistence of two eddies intensified barotropic pressure gradients in the southern WLE to locally enhance the eastward jet. The positive (negative) vorticity of the jet strengthened (weakened) the eddy in the southern sector (periphery), which, together with the formation of a subsurface density front, intensified (suppressed) the corresponding upward motion and cooling. The baroclinic pressure gradients opposed the dominant barotropic components and spun down the eddy at greater depths with stronger weakening in the southern sector near the front. Asymmetric energy distributions showed that larger mean kinetic energy (MKE) and eddy available potential energy (EAPE) were stored in the southern sector of the WLE. While the larger MICE was directly linked with the stronger barotropic currents, the larger EAPE in the southern WLE was formed by baroclinic energy conversions due to a strong density gradient at the front. (C) 2014 Elsevier Ltd. All rights reserved.
Department[Wang, Lei ; Gan, Jianping] Hong Kong Univ Sci & Technol, Dept Math, Hong Kong, Hong Kong, Peoples R China ; [Wang, Lei ; Gan, Jianping] Hong Kong Univ Sci & Technol, Div Environm, Hong Kong, Hong Kong, Peoples R China ; [Wang, Lei] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
KeywordOcean Eddy Dipole Eddy Eddy Energy Numerical Modeling West Luzon Eddy South China Sea
Subject AreaOceanography
Funding OrganizationKey Project of the National Science Foundation of China (NSFC) [91228202]; National Key Basic Research Development Program [2014CB441501]; Hong Kong's Research Grant Council [GRF601009] ; Key Project of the National Science Foundation of China (NSFC) [91228202]; National Key Basic Research Development Program [2014CB441501]; Hong Kong's Research Grant Council [GRF601009] ; Key Project of the National Science Foundation of China (NSFC) [91228202]; National Key Basic Research Development Program [2014CB441501]; Hong Kong's Research Grant Council [GRF601009] ; Key Project of the National Science Foundation of China (NSFC) [91228202]; National Key Basic Research Development Program [2014CB441501]; Hong Kong's Research Grant Council [GRF601009]
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Funding ProjectLTO
Funding OrganizationKey Project of the National Science Foundation of China (NSFC) [91228202]; National Key Basic Research Development Program [2014CB441501]; Hong Kong's Research Grant Council [GRF601009] ; Key Project of the National Science Foundation of China (NSFC) [91228202]; National Key Basic Research Development Program [2014CB441501]; Hong Kong's Research Grant Council [GRF601009] ; Key Project of the National Science Foundation of China (NSFC) [91228202]; National Key Basic Research Development Program [2014CB441501]; Hong Kong's Research Grant Council [GRF601009] ; Key Project of the National Science Foundation of China (NSFC) [91228202]; National Key Basic Research Development Program [2014CB441501]; Hong Kong's Research Grant Council [GRF601009]
WOS IDWOS:000338978400005
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/10523
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authormagan@ust.hk
Recommended Citation
GB/T 7714
Wang, L,Gan, JP,magan@ust.hk. Delving into three-dimensional structure of the West Luzon Eddy in a regional ocean model[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2014,90:48-61.
APA Wang, L,Gan, JP,&magan@ust.hk.(2014).Delving into three-dimensional structure of the West Luzon Eddy in a regional ocean model.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,90,48-61.
MLA Wang, L,et al."Delving into three-dimensional structure of the West Luzon Eddy in a regional ocean model".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 90(2014):48-61.
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