The 2D distribution characteristics and formation mechanism of suspended sediment concentration during the flood season in the Lingdingyang Estuary

He Jiawei; Jia Liangwen; Wei Xiange; Jia Yanhong; Cheng Cong

doi:10.3969/j.issn.0253-4193.2017.09.003

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He Jiawei, Jia Liangwen, Wei Xiange, Jia Yanhong, Cheng Cong. The 2D distribution characteristics and formation mechanism of suspended sediment concentration during the flood season in the Lingdingyang Estuary[J]. Haiyang Xuebao, 2017, 39(9): 26-39. doi: 10.3969/j.issn.0253-4193.2017.09.003

Citation:

He Jiawei, Jia Liangwen, Wei Xiange, Jia Yanhong, Cheng Cong. The 2D distribution characteristics and formation mechanism of suspended sediment concentration during the flood season in the Lingdingyang Estuary[J]. Haiyang Xuebao, 2017, 39(9): 26-39. doi: 10.3969/j.issn.0253-4193.2017.09.003

Citation:

He Jiawei, Jia Liangwen, Wei Xiange, Jia Yanhong, Cheng Cong. The 2D distribution characteristics and formation mechanism of suspended sediment concentration during the flood season in the Lingdingyang Estuary[J]. Haiyang Xuebao, 2017, 39(9): 26-39. doi: 10.3969/j.issn.0253-4193.2017.09.003

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The 2D distribution characteristics and formation mechanism of suspended sediment concentration during the flood season in the Lingdingyang Estuary

doi: 10.3969/j.issn.0253-4193.2017.09.003

1.
Coastal Ocean Research Center, School of Marine Science, Sun Yen-sat University, Guangzhou 510275, China
2.
School of Environment Science and Engineering, Sun Yen-sat University, Guangzhou 510275, China

Received Date: 2016-11-07
Rev Recd Date: 2016-12-21

Abstract

Abstract

Based on the observed data of current and suspended sediment concentration (SSC) during the flood season (13-14 and 16-17, August, 2007), by the means of measured data analysis and the TELEMAC-2D numerical model, this article reveals the spatial distribution characteristics of SSC in the Lingdingyang Esturay:in the longitudinal direction along west channel, SSC decrease first, then increase, and then decrease again from bay head to open sea; laterally, west channel, east channel and the north of the middle flat are higher SSC areas; the maximal center of SSC is located on the northwest of Neilingding Island. The model of longitudinal material transport reveals that the main reasons of net suspended sediment transport are advection, tidal asymmetry and vertical circulation. The effects of tidal current, runoff with sediment transport, solid boundary and topography condition are the main reasons for the 2D distribution characteristics of SSC in the Lingdingyang Estuary.
- Lingdingyang Estuary,
- suspended sediment concentration,
- 2D distribution characteristics,
- mechanism

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References(14)

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