Modeling of suspended sediment by coupled wave-current model in the Zhujiang(Pearl) River Estuary

作     者：Guangping Liu Shuqun Cai 

作者机构：State Key Laboratory of Tropical OceanographySouth China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China University of Chinese Academy of SciencesBeijing 100049China Institution of South China Sea Ecology and Environmental EngineeringChinese Academy of SciencesGuangzhou 510301China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2019年第38卷第7期

页      面：22-35页

核心收录：

学科分类：07[理学] 

基　　金：The National Natural Science Foundation of China under contract Nos 41890851 and 41521005 the Key Research Program of Frontier Sciences,Chinese Academy of Sciences under contract No.QYZDJ-SSW-DQC034 the Foundation of Institution of South China Sea Ecology and Environmental Engineering,Chinese Academy of Sciences under contract No.ISEE2018PY05 

主　　题：sediment transport turbidity Regional Ocean Modeling System(ROMS) Zhujiang River Estuary 

摘      要：A three-dimensional wave-current-sediment coupled numerical model is developed to understand the sediment transport dynamics in the Zhujiang(Pearl)River Estuary(ZRE),*** model results are in good agreement with observed data,and statistics show good model skill *** studies are conducted to assess the scenarios of suspended sediment in the ZRE under the effects of different forcing(river discharges,waves,and winds).The model results indicate that the estuarine gravitational circulation plays an important role in the development of estuarine turbidity maximum in the ZRE,particularly during neap *** increased river discharge can result in a seaward sediment *** suspended sediment concentration(SSC)in the bottom increases with both wave bottom orbital velocity and wave *** of the shallow water depth,the effect of waves on sediment in the west shoal is greater than that in the east *** southwesterly wind-induced wave affects the SSC more than those resulting from the northeasterly wind,while the northeasterly wind-driven circulation has a slightly greater influence on the SSC than that of the southwesterly ***,a steady southwesterly wind condition favors the increase of the SSC in the Lingding Bay more so than a steady northeasterly wind *** the other forcings are same,the averaged SSC under a steady southwesterly wind condition is about 1.1 times that resulting from a steady northeasterly wind.