- 作者: Ming-His Hsu ; Albert Yi-Shuong Kuo ; Wen-Cheng Liu ; Jan-Tai Kuo
- 中文摘要: Flow conditions in an estuary are primarily influenced by tides, seasonally varying freshwater discharge and intrusion of salt water from the ocean. A laterally averaged two-dimensional numerical model is developed and expanded for an estuarine system with tributaries as well as a mainstream. A series of comprehensive field data is used for model calibration and verification. The model simulates the time varying flow and salinity distribution in the Tanshui estuary. Reasonable agreement is obtained between the model results and observed data. This paper focuses on model experiments and applications. The model is applied to investigate the estuarine circulation, residual velocity profiles and salinity distributions under various hydrological conditions in the Tanshui estuary. The numerical experiment results show that, under Q90 flow conditions, if the wastewater is totally cut-off by wastewater interception systems, the salinity will increase by 2 to 4 parts per thousand in the middle portion of the mainstream and lower portion of the tributaries. However, the limit of salt intrusion will change little since it is limited by the shallow depth in the upper estuary.
- 英文摘要: --
- 中文關鍵字: numerical model, residual circulation, salinity intrusion, Tanshui River system
- 英文關鍵字: --