期刊
ESTUARINE COASTAL AND SHELF SCIENCE
卷 205, 期 -, 页码 10-20出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ecss.2018.03.010
关键词
Lagrangian coherent structures; Surface drifter; Transport barrier; Finite-time Lyapunov exponent; Pearl river estuary
资金
- Science and Technology Program of Guangzhou, China [201607020042]
- Public Science and Technology Research Funds Projects of Ocean [201205015]
- National Natural Science Foundation of China [41206071, 41176162]
- Key Research Program of Frontier Sciences, CAS [QYZDJ-SSW-DQC034]
- Self-research Program of the State Key Laboratory of Tropical Oceanography [LTOZZ1503]
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据