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Huang Enmao,Zhang Tao,Liu Dezheng, et al. Study on sediment transport in a wave and tide dominated estuary: A case study of Moyang River estuary in western Guangdong Province[J]. Haiyang Xuebao,2024, 46(x):1–14
Citation: Huang Enmao,Zhang Tao,Liu Dezheng, et al. Study on sediment transport in a wave and tide dominated estuary: A case study of Moyang River estuary in western Guangdong Province[J]. Haiyang Xuebao,2024, 46(x):1–14

Study on sediment transport in a wave and tide dominated estuary: A case study of Moyang River estuary in western Guangdong Province

  • Received Date: 2024-06-18
  • Rev Recd Date: 2024-10-28
  • Available Online: 2024-11-15
  • Sediment transport is a fundamental issue in the study of coastal and estuarine environments, holding significant scientific importance and practical value for the evolution of estuarine geomorphology, ecological environment, and engineering construction. This paper takes the estuary of the Moyang River as an example, based on the sea current, wave and suspended sediment concentration data measured by ship and bottom tripod, analyzes the alongshore and cross-shore transport trends of suspended sediment on the fixed cross-section of the Moyang River estuary, and calculates the sediment transport flux. It explores the sediment transport mechanisms and patterns in wave-tidal estuaries, with the main findings including: (1) During the flood season at the river mouth, the sediment transport is mainly controlled by the runoff, with the sediment transport rate increasing as the flow rate increases. The alongshore and cross-shore sediment transport reaches the maximum value during the neap tide with the largest flow, which are 111.9 g/m²/s and 269.5 g/m²/s respectively. At the mouth bar in the flood season, the sediment transport is jointly controlled by waves and tides. The alongshore sediment transport is consistently westward along the coast during both spring and neap tides, while the cross-shore sediment transport is dominated by the ebb tide during the spring tide with an offshore transport of 4.0 g/m²/s, and by waves during the neap tide with an onshore transport of 19.0 g/m²/s.(2) During the dry season, the mouth bar is primarily influenced by tidal currents and wave action. Sediment transport along the vertical shore predominantly occurs due to falling tidal currents moving seaward, while coastal transport is governed by wave energy, resulting in an eastward movement under the influence of wave-generated coastal currents. On the eastern side of the mouth bar during this season, tidal currents and waves also play a significant role; vertical shore transport is mainly driven by rising tides during spring tide periods before transitioning to offshore transport as tidal forces diminish. Coastal transport remains affected by wave-induced coastal currents and continues its eastward trajectory. (3) During the flood season observation period, the offshore transport at the river mouth is significant, and the flow direction of each water layer is consistent vertically. During the neap tide, there is a differentiation in the flow direction of the water layers, with the surface layer transporting offshore and the bottom layer onshore. At the mouth bar, the flow direction of each water layer is relatively consistent vertically during both spring and neap tides. Still, after tidal averaging, the spring tide shows offshore transport in all water layers, while the neap tide shows onshore transport in all water layers. During the neap tide, the influence of waves is evident, with the onshore transport ratio reaching 79%. (4) Under the influence of runoff and tidal current, the mouth of Moyang River estuary mainly carries sediment to the sea. The most significant factors affecting sediment transport at the mouth bar are the seaward tidal currents and the alongshore and cross-shore sediment movements driven by waves.
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  • [1]
    Nienhuis J H, Ashton A D, Roos P C, et al. Wave reworking of abandoned deltas[J]. Geophysical Research Letters, 2013, 40(22): 5899−5903. doi: 10.1002/2013GL058231
    [2]
    Mayerle R, Narayanan R, Etri T, et al. A case study of sediment transport in the Paranagua Estuary Complex in Brazil[J]. Ocean Engineering, 2015, 106: 161−174.
    [3]
    Cheng P, Li M, Li Y. Generation of an estuarine sediment plume by a tropical storm[J]. Journal of Geophysical Research: Oceans, 2013, 118(2): 856−868. doi: 10.1002/jgrc.20070
    [4]
    Du J B, Shen J. Transport of riverine material from multiple rivers in the Chesapeake Bay: important control of estuarine circulation on the material distribution[J]. Journal of Geophysical Research: Biogeosciences, 2017, 122(11): 2998−3013. doi: 10.1002/2016JG003707
    [5]
    Harris C K, Sherwood C R, Signell R P, et al. Sediment dispersal in the northwestern Adriatic Sea[J]. Journal of Geophysical Research: Oceans, 2008, 113(C11): C11S03.
    [6]
    Bever A J, Harris C K, Sherwood C R, et al. Deposition and flux of sediment from the Po River, Italy: an idealized and wintertime numerical modeling study[J]. Marine Geology, 2009, 260(1/4): 69−80.
    [7]
    Xue Z, Liu J P, DeMaster D, et al. Late Holocene evolution of the Mekong subaqueous delta, southern Vietnam[J]. Marine Geology, 2010, 269(1/2): 46−60.
    [8]
    Nowacki D J, Ogston A S, Nittrouer C A, et al. Sediment dynamics in the lower Mekong River: transition from tidal river to estuary[J]. Journal of Geophysical Research: Oceans, 2015, 120(9): 6363−6383. doi: 10.1002/2015JC010754
    [9]
    Passalacqua P, Lanzoni S, Paola C, et al. Geomorphic signatures of deltaic processes and vegetation: the Ganges-Brahmaputra-Jamuna case study[J]. Journal of Geophysical Research: Earth Surface, 2013, 118(3): 1838−1849. doi: 10.1002/jgrf.20128
    [10]
    Higgins S A, Overeem I, Steckler M S, et al. InSAR measurements of compaction and subsidence in the Ganges-Brahmaputra Delta, Bangladesh[J]. Journal of Geophysical Research: Earth Surface, 2014, 119(8): 1768−1781. doi: 10.1002/2014JF003117
    [11]
    Heise B, Harff J, Ren J, et al. Patterns of potential sediment erosion in the Pearl River Estuary[J]. Journal of Marine Systems, 2010, 82: S62−S82. doi: 10.1016/j.jmarsys.2010.02.006
    [12]
    Hu Jiatang, Li Shiyu, Geng Bingxu. Modeling the mass flux budgets of water and suspended sediments for the river network and estuary in the Pearl River Delta, China[J]. Journal of Marine Systems, 2011, 88(2): 252−266. doi: 10.1016/j.jmarsys.2011.05.002
    [13]
    潘存鸿, 曾剑, 唐子文, 等. 钱塘江河口泥沙特性及河床冲淤研究[J]. 水利水运工程学报, 2013(1): 1−7. doi: 10.3969/j.issn.1009-640X.2013.01.001

    Pan Cunhong, Zeng Jian, Tang Ziwen, et al. A study of sediment characteristics and riverbed erosion/deposition in Qiantang estuary[J]. Hydro-Science and Engineering, 2013(1): 1−7. doi: 10.3969/j.issn.1009-640X.2013.01.001
    [14]
    李谊纯, 董德信, 王一兵. 北仑河口及其邻近海域物质输运滞留时间研究[J]. 广西师范大学学报: 自然科学版, 2015, 33(2): 56−63.

    Li Yichun, Dong Dexin, Wang Yibing. Transport time scale in the Beilun River estuary and its adjacent area[J]. Journal of Guangxi Normal University (Natural Science Edition), 2015, 33(2): 56−63.
    [15]
    董德信, 陈波, 李谊纯, 等. 基于平面二维潮流模型的北仑河口悬沙输运与底床冲淤数值模拟[J]. 热带海洋学报, 2013, 32(6): 16−21. doi: 10.3969/j.issn.1009-5470.2013.06.003

    Dong Dexin, Chen Bo, Li Yichun, et al. Numerical simulation of suspended sediment transport and seabed change in the Beilun Estuary based on a two-dimensional tidal current model[J]. Journal of Tropical Oceanography, 2013, 32(6): 16−21. doi: 10.3969/j.issn.1009-5470.2013.06.003
    [16]
    李爽, 詹文欢, 姚衍桃. 漠阳江入海口海岸线分维及其机制分析[J]. 海洋通报, 2019, 38(2): 210−216. doi: 10.11840/j.issn.1001-6392.2019.02.012

    Li Shuang, Zhan Wenhuan, Yao Yantao. Analysis of fractal dimension mechanism in coastline of the Moyang River Estuary[J]. Marine Science Bulletin, 2019, 38(2): 210−216. doi: 10.11840/j.issn.1001-6392.2019.02.012
    [17]
    周建刚. 双捷水文站河床冲淤情况分析[J]. 大众科技, 2015, 17(5): 41−43. doi: 10.3969/j.issn.1008-1151.2015.05.016

    Zhou Jiangang. Analysis on riverbed scouring and siltation of Shuangjie hydrological station[J]. Popular Science & Technology, 2015, 17(5): 41−43. doi: 10.3969/j.issn.1008-1151.2015.05.016
    [18]
    赵亮, 余丹亚, 林文升. 漠阳江下游河网区主要航道维护水深分析及建议[J]. 珠江水运, 2023(21): 109−111.

    Zhao Liang, Yu Danya, Lin Wensheng. Analysis and suggestion on maintenance water depth of main channel in river network area of lower reaches of Moyang River[J]. Pearl River Water Transport, 2023(21): 109−111. (查阅网上资料, 未找到对应的英文翻译, 请确认)
    [19]
    刘强, 汤民强, 贺惠忠, 等. 广东阳西沙扒海域埋藏古河道沉积特征[J]. 吉林大学学报(地球科学版), 2022, 52(6): 1791−1799.

    Liu Qiang, Tang Minqiang, He Huizhong, et al. Sedimentary characteristics of buried ancient channels in Shapa area of Yangxi, Guangdong Province[J]. Journal of Jilin University (Earth Science Edition), 2022, 52(6): 1791−1799.
    [20]
    刘润, 李志强, 朱道恒, 等. 风暴后海陵岛金沙滩恢复期床面高度变化分析[J]. 海洋地质前沿, 2024, 40(8): 22−31.

    Liu Run, Li Zhiqiang, Zhu Daoheng, et al. Analysis of bed level elevation during beach recovery after storm on Golden Beach, Hailing Island, Guangdong[J]. Marine Geology Frontiers, 2024, 40(8): 22−31.
    [21]
    Dyer K R. The salt balance in stratified estuaries[J]. Estuarine and Coastal Marine Science, 1974, 2(3): 273−281. doi: 10.1016/0302-3524(74)90017-6
    [22]
    Galloway W E. Process framework for describing the morphologic and stratigraphic evolution of deltaic depositional systems[J]. Deltas: Models for Exploration, 1975: 88−98. (查阅网上资料, 未找到对应的卷期号信息, 请确认)(查阅网上资料, 请核对文献类型及格式)
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