Flood Scenario Simulation, Based on the Hydrological and Hydrodynamic Model in the Puyang River Catchment

The topography of the Puyang River catchment is complex and includes hills and plains. The Zhuji basin in the middle reaches a densely populated area facing serious flooding issues, due to the upstream flooding and downstream backwater. To address the problem, this study applies the Xin’anjiang hydrological model and IFMS 1D-2D hydrodynamic model, to simulate flood scenarios. The simulation results demonstrated that the hydrological model and the -hydrodynamic model together are a feasible tool to monitor the flooding process in the Puyang River catchment. In addition, different flood scenarios which consider disaster-inducing factors and flood control operations are simulated by the model. Reasonable solutions are analyzed for the local flood management.