Rating confirmation and application of flood routing model of Jingjiang River-Dongting Lake

Based on the established flood routing model of Jingjiang River-Dongting Lake,we discussed some key treatments about sectional data,resistance issue and boundary conditions during modeling.The model has been calibrated and confirmed by field datum,and applied to simulate the extraordinary flood routing of Jingjiang River.The computational result shows that the model effectively describes flood routing process of Jingjiang River-Dongting Lake,and it can be used in simulation of different flood prevention and regulation plans and prediction of the plan implement.