Analytical study of the sediment transport in the South Channel of Yangtze Estuary, China

Yang Zhongyong; Wang Zhong; Cheng Heqin; Guo Xingjie; Cao Zhenyi

doi:10.3969/j.issn.0253-4193.2017.05.003

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Article Navigation > Haiyang Xuebao > 2017 > 39(5): 22-32

Yang Zhongyong, Wang Zhong, Cheng Heqin, Guo Xingjie, Cao Zhenyi. Analytical study of the sediment transport in the South Channel of Yangtze Estuary, China[J]. Haiyang Xuebao, 2017, 39(5): 22-32. doi: 10.3969/j.issn.0253-4193.2017.05.003

Citation:

Yang Zhongyong, Wang Zhong, Cheng Heqin, Guo Xingjie, Cao Zhenyi. Analytical study of the sediment transport in the South Channel of Yangtze Estuary, China[J]. Haiyang Xuebao, 2017, 39(5): 22-32. doi: 10.3969/j.issn.0253-4193.2017.05.003

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Analytical study of the sediment transport in the South Channel of Yangtze Estuary, China

doi: 10.3969/j.issn.0253-4193.2017.05.003

1.
College of Hydraulic and Environment Engineering, China Three Gorges University, Yichang 443002, China;State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
2.
College of Hydraulic and Environment Engineering, China Three Gorges University, Yichang 443002, China
3.
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China
4.
Shanghai Institute of Geological Survey, Shanghai 200072, China
5.
State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

Received Date: 2016-05-08
Rev Recd Date: 2016-09-27

Abstract

Abstract

An analytical model was developed to analysis the hydrodynamics and sediment transport in the South Channel of Yangtze Estuary, China. The tidal dynamics in the South Channel is controlled by semi-diurnal tide. The dominated driven factors of residual flow are river discharge and nonlinear advection terms due to tidal flow. The suspended sediment concentration over the northern channel is much higher than that over the southern channel. The essential features of the observed flow field and sediment distribution are reproduced by the model results. Closer inspection of the sediment entrapment with sediment transport function indicates that, the residual transport and tidal transport dominates, and both of them point northward (to the north deep channel). The diffusive transport points southward, since it always transports sediment from high concentration area to low concentration area.
- analytical model,
- the South Channel of the Yangtze Estuary,
- hydrodynamics,
- tidal sediment transport,
- residual sediment transport

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References(23)

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