广佛交界河段水动力水质模拟与水质预警系统

Hydrodynamic and water quality simulation and water quality early warning system in the river between Guangzhou and Foshan

以广佛交界河段西南涌、芦苞涌以及九曲河为研究范围,构建基于MIKEHYDRO的一维感潮河段水动力、水质模型,并在此基础上建立了“两涌”水质预警系统。水动力、水质模型通过多次比对以及参数率定,使模拟与实测结果相关系数达到0.9820。水质预警系统能对各种水环境风险管理方案和不同防治情景的实施效果进行在线模拟,从而实现河道水质超标预警功能。模型以及预警系统已经多次应用到实际工作中,包括水资源论证水量分析计算、水质污染物通量计算、西南涌补水论证流量水质模拟等项目。

Taking the Xinan River,Lubao River and Jiuqu River at the junction of Guangzhou and Foshan as the research scope,a one-dimensional hydrodynamic and water quality tidal reach model based on MIKEHYDRO is constructed,and on this basis,a water quality early warning system of the“two rivers”is established.The hydrodynamic and water quality model has passed multiple comparison and parameter calibration,so that the correlation coefficient between the simulated and measured results reaches 0.9820.The water quality early warning system can perform online simulation of the implementation effects of various water environment risk management plans and different prevention scenarios,so as to realize the early warning function of river water quality exceeding the standard.The model and early warning system have been applied to practical work many times,including water quantity analysis and calculation of water resources demonstration,water quality pollutant flux calculation,flow and water quality simulation of Xinan River water supply demonstration,etc.