A Hydrodynamic and Water Quality Model for Danshuei River System
Date Issued
2006
Date
2006
Author(s)
Wu, Chi-Ray
DOI
zh-TW
Abstract
Taiwan is an island which the discharge in most rivers flowing enters the ocean. The tidal river is the way of substantial exchange between river and ocean. Fresh water polluted by point and non-point sources from drainage areas concentrated in the tidal river and induced environment and ecology problems. The field surveys on Tanshui River were conducted to investigate the hydraulic and water quality in the processes of substantial exchange of the tidal river.
Tanshui River, the largest tidal river in Taiwan, is the study site in this study. A hydraulic and water quality numerical model for Tanshui River, which consists of tributaries, division channel and confluences, has been developed to simulate the detailed variation of the hydraulic and water quality. Several study cases were examined to verify the rationality and accuracy. The result shows that the proposed model can be used to simulate the hydraulic and water quality for the tidal river.
The field surveys including salt, temperature, suspended solids, chlorophyll and dissolved oxygen on Tanshui River were carried out from 2002 to 2004. Those field data were used for model calibration and verification. It reveals that the simulation results of the hydraulic and water quality were good agreement with observed values. The present model can provide satisfactory and reliable results of hydraulic and water quality for the tidal river.
Subjects
淡水河系
匯分流流況
水理與水質模擬
現場量測
Tanshui River
division channel and confluences
hydraulic and water quality
field surveys
Type
thesis
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