采用数值方法构建河网模型,对平原感潮河网城市地区进行降雨径流和河道水流模拟。应用MIKE11软件,建立上海浦东新区水文学、水动力学模型。根据新区排涝模式,划分水文模型集水区,并与水动力模型耦合。依据河道水文实测数据,完成水文、水动力模型参数耦合率定,反映河网水位流量对降雨径流的响应。 The numerical model is used to construct the river network model to simulate rainfall runoff and river flow in the urban area of ​​the tidal flat river network. Apply MIKE11 software to establish the hydrology and hydrodynamics model of Shanghai Pudong New Area. According to the drainage pattern of the new district, divide the hydrological model catchment area and couple it with the hydrodynamic model. Based on the measured data of river hydrology, the parameters coupling ratio of hydrological and hydrodynamic models is determined, which reflects the response of river network water level to rainfall runoff.