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Sediment dynamics in an offshore tidal channel in the southern Yellow Sea

ISSN号：1001-6279
期刊名称：International Journal of Sediment Research
时间：2014.6
页码：246-259
分类：TV148.1[水利工程—水力学及河流动力学] X55[环境科学与工程—环境工程]
作者机构：[1]Collaborative Innovation Center of South China Sea Studies, Nanjing 210093, China, [2]Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210023, China, [3]Key Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China, [4]State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
相关基金：The Ocean Special Funds for Scientific Research on Public Causes under contract No.201105001-2; the National Basic Research Program（973 Program）of China under contract No.2013CB956502; the National Natural Science Foundation of China under contract Nos 41376044,41276083 and 41476049 Acknowledgements We are grateful to Chen Jingdong and Zhu Qingguang for the discussions on estuarine TM formation, sediment resuspension and salt flux, respectively. We thank Gong Wenping and Yu Qian for the advice on the preparation of this article.
相关项目：三维海洋模式空间分布参数设置的伴随法实现及应用

作者： Wang, Ya-ping|Zou, Xin-qing|Zhang, Ji-cai|Gao, Jian-hua|

关键词：最大浑浊带, 季节变化, 珠江口, 华南, 悬浮泥沙浓度, 空间分布格局, 沉积物再悬浮, 数值模拟, sediment resuspension vertical circulation turbidity maximum Delft3D Zhujiang（Pearl River） Estuary

中文摘要：

Real-time observations in the field and numerical simulations(with Delft3D) were combined to study the formation, distribution and the relevant influencing factors of turbidity maximum(TM) in the Zhujiang(Pearl River) Estuary(ZE). The spatial distribution pattern of the TM varies with the longitudinal distributions of salinity and suspended sediment concentration(SSC). The SSC is enhanced and the TM is intensified during dry seasons,whereas the center of the TM moves upstream by a distance of 10 km during wet seasons. The formation of the TM is influenced by a complex combination of numerous factors, including tides, river discharges and topography, wherein sediment resuspension and vertical circulation dominate the formations and variability of the TM.

英文摘要：

Real-time observations in the field and numerical simulations（with Delft3D） were combined to study the formation, distribution and the relevant influencing factors of turbidity maximum（TM） in the Zhujiang（Pearl River） Estuary（ZE）. The spatial distribution pattern of the TM varies with the longitudinal distributions of salinity and suspended sediment concentration（SSC）. The SSC is enhanced and the TM is intensified during dry seasons,whereas the center of the TM moves upstream by a distance of 10 km during wet seasons. The formation of the TM is influenced by a complex combination of numerous factors, including tides, river discharges and topography, wherein sediment resuspension and vertical circulation dominate the formations and variability of the TM.

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