Study on Flood Prediction of Tidal Reach in Puyang River Basin
The middle and upper reaches of Puyang River Basin is a tidal river,which is easily affected by the downstream flood,resulting in the unstable relationship between water level and discharge,which is difficult to the flood forecasting operation.This study took the basin above Zhuji Station as the study area,and 20 representative floods from 1990 to 2021 were selected to forecast the discharge of Zhuji Station by using the three-water source Xin'anjiang model.Based on the excellent nonlinear map-ping capability of BP neural network,a water level prediction model of Zhuji Station was established,which took Meichi water level,temporal rainfall,the discharge of Anhua reservoir and the forecast discharge of Zhuji Station as input factors,to explore the applicability in Zhuji flood peak water level forecasting.The results show that the forecast results of the flood peak water level in 2019-2021 is good,and the relative error of water level is kept within 2.5％.
Puyang River Basintidal reachhydrological modelneural networkflood forecast
万方数据
维普
