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Proceedings of the International Association of Hydrological Sciences An open-access publication for refereed proceedings in hydrology
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Volume 368
Proc. IAHS, 368, 430–435, 2015
https://doi.org/10.5194/piahs-368-430-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Proc. IAHS, 368, 430–435, 2015
https://doi.org/10.5194/piahs-368-430-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

  07 May 2015

07 May 2015

Hindcasting morphodynamic evolution with sand–mud interactions in the Yangtze Estuary

H. Jie1,2, G. Leicheng2, M. van der Wegen2,3, and D. Roelvink2,3 H. Jie et al.
  • 1Nanjing Hydraulic Research Institute, Nanjing, Jiangsu Province, China
  • 2UNESCO-IHE, Delft, The Netherlands
  • 3Deltares, Delft, The Netherlands

Keywords: Morphodynamic evolution, sand–mud interaction, Delft 3D, Yangtze Estuary

Abstract. Previous work on morphodynamic evolution in the Yangtze Estuary (YE) is based on measured historical bathymetries. To evaluate the sensitivity of sand–mud interaction in the estuarine morpho-dynamics, a process-based morphodynamic model, Delft3D, is used to examine the morphodynamic behaviour from 1958 to 1997. Different scenarios concerning sand and mud and their combination are designed systematically. The scenarios considering multiple fractions, and especially with four fractions, improve the hindcasting evolution, suggesting the importance of including both sand and mud fractions and a sediment gradient setting of medium grain.

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