随着城市化进程加快,地面不渗透面积的增加,洪水发生频率的增大,极端气候的加剧,城市排水管网的老化等原因造成城市雨涝情况的突出,使得传统排涝减排方法不得不进行更新,迫使我们采用新的洪水预报技术进行洪水预报及洪涝控制。 With the accelerating process of urbanization, the increase of impervious area, the increase of flood frequency, the exacerbation of extreme climate and the aging of urban drainage network, etc., the situation of urban rain and waterlogging is prominent, making the traditional method of drainage and emission reduction inevitable The update forced us to adopt new flood forecasting techniques for flood forecasting and flood control.