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Numerical Study on Salinity Stratification in the Oujiang River Estuary

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Abstract

The variations of current, salt intrusion and vertical stratification under different conditions of river flow and wind in the Oujiang River Estuary (ORE) were investigated in this article using the Environmental Fluid Dynamics Code (EFDC). The model was verified against water level variation, velocity, and salinity variations in June 2005. The simulation results agreed well with measured data. Six sensitivity tests were conducted for different conditions of river flow and wind specified in the model. Model results show that salinity intrudes further upstream under scenarios with low flow and downriver local wind conditions. In contrast, the responses of salinity stratification to different environmental forcing functions were different in different portions of the estuary. Salinity stratification was enhanced under high flow condition. Model results also show that wind is not crucial to the salt intrusion and salinity stratification in the ORE.

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Authors and Affiliations

  1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, 116024, China

    Heng-zhi Jiang & Yong-ming Shen

  2. Transport Planning and Research Institute, Beijing, 100048, China

    Shou-dong Wang

Authors
  1. Heng-zhi Jiang
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  2. Yong-ming Shen
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  3. Shou-dong Wang
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Corresponding author

Correspondence to Heng-zhi Jiang.

Additional information

Project supported by the National Basic Research Program of China (973 Program, Grant No. 2006CB403302) the National Natural Science Foundation of China (Grant Nos. 50839001, 50779006).

Biography: JIANG Heng-zhi (1979-), Male, Ph. D. Candidate

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Jiang, Hz., Shen, Ym. & Wang, Sd. Numerical Study on Salinity Stratification in the Oujiang River Estuary. J Hydrodyn 21, 835–842 (2009). https://doi.org/10.1016/S1001-6058(08)60220-6

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  • DOI: https://doi.org/10.1016/S1001-6058(08)60220-6

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