西苕溪流域位于人口众多、经济发达的太湖流域上游源头地区。受自然和气候特性的影响,该流域频繁遭到洪水灾害的袭击。为了定量研究西苕溪流域洪水发生机制和动态规律,本项目研制了一个局地尺度综合水文模型。该模型由若干个子模型组成,包括新安江模型及明渠河网非恒定流的水力学模型等。模型的检验结果表明,能被用于水利工程规划及洪水危险性评价中。

Located in the headwater upstream of the Taihu Lake Basin, which is a dersely populated and economically developed area in China, the West Tiaoxi River catchment is a frequent flood hitted area due to its nature and characteristics of climate. A local scale integrated hydrological model has been developed for the studies of flood mechanisms and dynamics in this area. The model consists of several modules of sub models including the Xin’anjiang model and the hydraulic model of unsteady flow in open channels etc.. Testing results of the model show that it is reliable for planning the water resources engineering and for assessing flood risk.