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Numerical simulation of hydrodynamic and water quality effects of shoreline changes in Bohai Bay

  • Han Jia
  • Yongming Shen
  • Meirong Su
  • Chunxue Yu
Research Article
  • 12 Downloads

Abstract

This study uses the HD and Ecolab modules of MIKE to simulate the hydrodynamic and water quality and predict the influence of shoreline changes in Bohai Bay, China. The study shows that shoreline changes weaken the residual current and generate a counter-clockwise circulation south of Huanghua Port, thereby resulting in weak water exchange capacity and low pollutant-diffusing capacity. Shoreline changes reduce the area of Bohai Bay, resulting in a smaller tidal prism and further weakening the water exchange capacity. This situation is not conducive to the diffusion of pollutants, and therefore may lead to increased water pollution in the bay. Shoreline changes hinder the spread of runoff, weaken the dilution effect of the river on seawater, and block the spread of coastal residual current, thereby resulting in increased salinity near the reclamation area. Shoreline changes lead to an increase in PO4-P concentration and decrease in DIN concentration. The value of N/P near the project decreases, thereby weakening the phosphorus-limited effect.

Keywords

Bohai Bay shoreline changes hydrodynamic water quality 

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Notes

Acknowledgements

This study was funded by the National Natural Science Foundation of China (Grant No. 51779039).

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Copyright information

© Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Han Jia
    • 1
  • Yongming Shen
    • 1
    • 2
  • Meirong Su
    • 2
  • Chunxue Yu
    • 2
  1. 1.State Key Laboratory of Coastal and Offshore EngineeringDalian University of TechnologyDalianChina
  2. 2.School of Environment and Civil EngineeringDongguan University of TechnologyDongguanChina

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