Detecting the transport barriers in the Pearl River estuary, Southern China with the aid of Lagrangian coherent structures
Wei, X; Zhan, HG; Cai, SQ; Zhan, WK; Ni, PT; wes@scsio.ac.cn
2018
发表期刊ESTUARINE COASTAL AND SHELF SCIENCE
卷号205页码:10-20
摘要Knowledge of horizontal transport pathways is important for the protection of the marine ecosystem in coastal areas. In this paper, we develop a 3D model to simulate hydrodynamics and particle transport in the Pearl River Estuary (PRE), Southern China, to study the barriers to transport in the PRE. Specifically, we use the flow velocity produced by the model to locate Lagrangian coherent structures (LCSs) hidden in ocean surface currents. Our findings show that a remarkable LCS begins upstream near the Humen inlet, extends to the Wanshan Islands via Neilingding Island, and can act as a transport barrier in the estuary. This LCS appeared 1-2 h after high tide and was persistent for 6-7 h during every ebb tide. Particles released on the west side of the LCS moved downstream, exited the estuary by Daxi Channel, and seldom spread to the east side, especially the Hong Kong Sea area. An analysis of several scenarios suggested that the formation of this LCS was due to topography restrictions and tidal forces. (C) 2018 Elsevier Ltd. All rights reserved.
部门归属[Wei, Xing; Zhan, Haigang; Cai, Shuqun; Zhan, Weikang] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [Cai, Shuqun] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Ni, Peitong] Guangdong Res Inst Water Resources & Hydropower, Guangzhou 510610, Guangdong, Peoples R China
关键词Lagrangian Coherent Structures Surface Drifter Transport Barrier Finite-time Lyapunov Exponent Pearl River Estuary
学科领域Marine & Freshwater Biology ; Oceanography
资助项目LTO
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/17073
专题热带海洋环境国家重点实验室(LTO)
通讯作者wes@scsio.ac.cn
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GB/T 7714
Wei, X,Zhan, HG,Cai, SQ,et al. Detecting the transport barriers in the Pearl River estuary, Southern China with the aid of Lagrangian coherent structures[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2018,205:10-20.
APA Wei, X,Zhan, HG,Cai, SQ,Zhan, WK,Ni, PT,&wes@scsio.ac.cn.(2018).Detecting the transport barriers in the Pearl River estuary, Southern China with the aid of Lagrangian coherent structures.ESTUARINE COASTAL AND SHELF SCIENCE,205,10-20.
MLA Wei, X,et al."Detecting the transport barriers in the Pearl River estuary, Southern China with the aid of Lagrangian coherent structures".ESTUARINE COASTAL AND SHELF SCIENCE 205(2018):10-20.
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