Author_Institution :
Sch. of Environ., Tsinghua Univ., Beijing, China
Abstract :
The safety of the Jiangdong reservoir at Jiulong River, as the main source of local drinking water, is crucial to the residents in Xiamen city. In order to simulate and predict the water quality of the Reservoir, an integrated model system was developed based on GIS and RS technology, which was composed of non-point source (NPS) simulation model, hydrodynamic model, and river water quality model. Besides, a serious of years of monitoring data was collected for the model parameter identification. In the parameter identification phase, the MSEs (Mean Squared Error) of the hydrological model were less than 0.3, the MSEs of the water quality model, including the MSEs of the DO (Dissolved Oxygen), NH (ammonia), TP (Total Phosphorus) and CHLa (Chlorophyll a) indicators, were less than 0.7. In conclusion, the results showed that the integrated ecological-hydrodynamic model was build up and could be further validated.
Keywords :
rivers; water quality; water resources; GIS technology; Jiangdong reservoir; Jiulong river; RS technology; Xiamen city; ammonia indicator; chlorophyll a indicator; dissolved oxygen indicator; hydrodynamic model; integrated ecological-hydrodynamic model; integrated model system; local drinking water; mean squared error; model parameter identification; nonpoint source simulation model; parameter identification phase; reservoir water quality; river water quality model; total phosphorus indicator; Biological system modeling; Data models; Mathematical model; Predictive models; Reservoirs; Rivers; hydrodynamic model; model validation; parameter identification; water quality model;
