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Analytical solution for salt intrusion in the Yangtze Estuary, China

机译:长江口盐分入侵的解析解

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摘要

The Yangtze Estuary is one of the largest estuaries in the world, with three-order bifurcations and four outlets into the sea. In recent years salt intrusion has been given more attention due to the increase in its level and frequency. In this paper, for the first time, an analytical model is applied to the Yangtze Estuary to analyze the salt intrusion. This model has been tested in 18 estuaries in the world. Originally it was derived for single channel estuaries, which makes the application to the Yangtze Estuary challenging. The results show that this model can describe the salt intrusion from the sea in the Yangtze Estuary very well, with a good fit between computed salinity and measurements. The good results for the Combined South Branch and Combined South Channel indicate that the multi-channel estuary system functions as an entity. Additionally, this model can be used to estimate the river discharge distribution over the separate channels. Further work is needed based on more detailed salinity measurements and accurate bathymetry, particularly for the North Branch of the estuary system.
机译:长江口是世界上最大的河口之一,具有三阶分叉和四个出海口。近年来,由于盐入侵的级别和频率增加,它已受到更多关注。本文首次将分析模型应用于长江口,以分析盐分入侵。该模型已经在全球18个河口进行了测试。最初它是为单河口导出的,这使其在长江口的应用面临挑战。结果表明,该模型可以很好地描述长江口海域的盐分入侵,并且在计算盐度和测量值之间具有很好的拟合度。联合南分支和联合南海峡的良好结果表明,多渠道河口系统可作为一个实体。此外,该模型可用于估算各个河道上的河流流量分布。基于更详细的盐度测量和准确的测深法,需要进一步的工作,特别是对于河口系统的北分支。

著录项

  • 来源
    《Estuarine Coastal and Shelf Science》 |2011年第4期|p.492-501|共10页
  • 作者单位

    State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China,Department of Water Management, Delft University of Technology, Delft, Netherlands;

    Department of Water Management, Delft University of Technology, Delft, Netherlands;

    State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China;

    State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China;

    State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    analytical model; salt intrusion; river discharge distribution; yangtze estuary;

    机译:解析模型盐侵入河流分布长江口;

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