Study on Hydrology Hydrodynamic Coupling Model of Large Plain River Network Based on Runoff Generation and Regulation in Polder Area
Establishing a reliable hydrological and hydrodynamic model has become a necessary means for mitigating disaster losses in the plain river network.Taking Hangjiahu area in Taihu Basin as the research object,MIKE and Arc-GIS were used to establish a hydrological and hydrodynamic coupling model of plain river network through river network generalization,catchment division,hydrological calculation inside and outside of polder,regulation and storage analysis.The reliability of the model was verified by the measured hydrological data of"Feite"and"Yanhua"typhoon.The results show that the absolute difference between simulated water level and measured water level was 0.01-0.09 m,and the error between simulated and measured water volume was 5.4％.These results show that this model is reliable,and can provide technical support for flood prediction and engineering dispatching,as well as theoretical guidance for the construction of hydrological and hydrodynamic models in similar areas.
plain river networkcatchment areapolder arearunoff yield and flow concentrationregulation and storage
NETL
NSTL
万方数据
维普
