基于陆气耦合模型的锅浪跷水电站短期径流预报OA

Currently,the inflow runoff forecasting for Guolangqiao Hydropower Project mainly relies on self-built rain gauge stations,with actual measured rainfall processes serving as the input.The forecast period is only about 4 hours,which cannot effectively meet the application needs of the hydropower project.Therefore,this paper proposes to obtain the numerical weather forecast results of the watershed and combine them with the Sanjiang Xin'anjiang Model to build a land-atmosphere coupling model for simulating hydrological genera-tion and runoff and predicting inflow into the reservoir.Through the application and analysis of historical in-flow into the reservoir and rainfall process simulation,the overall predictive accuracy of the land-atmosphere coupling model is mainly affected by the accuracy of numerical rainfall,and the peak flow date is greatly affect-ed by the period of daily rainfall concentration.The model as a whole has a good simulation effect on the total runoff.The coupling model has improved the forecast horizon of the inflow into Guolangqiao Hydropower Pro-ject and provided important decision support for the economic and safe operation of the hydropower project.