Flood routing model and basic algorithm for the Jingjiang River and the Dongting Lake area

In the light of huge and complicated flow of the complicated Jingjiang River and the Dongting Lake network,the 1D and 2D co -routing of flood is set up,in which,1D network model for the river channel and the lake,2D model for water diversion and storage areas.The model contains real-time forecast mode,zero flow calculation mode of the river network,water quantity exchange mode of the river and the flood di- version and storage areas.The model can be used to simulate the floods in the main stem of the Yangtze River,the river network and the lake area of the Dongting Lake,flood routing in flood diversion and storage areas and flood regulation.