![]() Six circulations could be induced by southwest wind in the flow field. The results showed that the time-average velocity value ranged from 0 to 0.01 m/s in Yanming Lake on the condition of both no wind and southwest wind. Response Characteristics of water quality after implementation of different scenarios was conducted. Additionally, based on the distribution characteristic of pollutants, three scenarios for external pollutants' load reduction were proposed. The Back propagation Neural Net (BPPN) approach was introduced to utilize the results of simulation to evaluate water quality in Yanming Lake. In order to facilitate works of water environment management in Yanming Lake Xi'an Shaanxi, the MIKE 21 hydrodynamic model coupled with the advection-dispersion equation was employed to develop a water quality model to investigate the characteristics of the flow field on the conditions of different wind and to simulate the variations of pollutants, which were Chemical Oxygen Demand (COD), Total Nitrogen (TN) and Total Phosphate (TP). ![]()
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