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Impact of typhoon Lekima(2019)on material transport in Laizhou Bay using Lagrangian coherent structures

查看全文 作　　者：Qi [1]LOU;Zhengyan [1,2]LI;Yanwei [1]ZHANG;Yilei [1]FENG;Xueqing [1,2]ZHANG 高影响力作者 机构地区：[1]College of Oceanic and Atmospheric Sciences,Ocean University of China,Qingdao 266100,China;[2]Key Laboratory of Marine Science and Numerical Modeling,Ministry of Natural Resources(MNR),Qingdao 266061,China高影响力机构 出　　处：《Journal of Oceanology and Limnology》索引2022年第40卷第3期,共12页高影响力期刊 基　　金：Supported by the National Natural Science Foundation of China(No.41974085);the National Key R&D Program of China(No.2019YFC1408100)。 摘　　要：Typhoon has an impact on an estuary and coastal environment.However,the present research lacks the detailed description of material transport processes during typhoon passage,such as the transport channels and barriers in the course of material transport and material accumulation area,etc.Therefore,Lagrangian coherent structures(a method developed for describing the transport structure of fluids in recent years)was introduced to investigate and predict the floating material and debris transport process in the Laizhou Bay,Bohai Sea,during typhoon Lekima in 2019.Results show that the Lagrangian coherent structure could well explain the complex flow phenomena in the bay.During the typhoon,the general direction of floating material transport in the Laizhou Bay was anticlockwise.There was a channel for material transport in the northwest and south of the bay,and there are transportation obstacles in the northeast-southwest direction in the middle of the bay.Therefore,the typhoon might worsen the water quality.These results provide references for precise countermeasures to control the formulation of pollution in the Laizhou Bay. 关 键 词：material transport TYPHOON Lagrangian coherent structures Laizhou Bay
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