以寸滩站为例,针对建立复杂区间入流河段洪水预报系统是水文预报领域的难点、峰值预报精度是洪水预报过程的关键,采用BPPR网络模型,构建了寸滩站BPPR洪水预报模型,并预报了寸滩站2008~2010年的洪水过程。结果表明,该模型对洪峰的映射及洪水过程的模拟精度较高,预报效果理想。 Taking Cuntan Station as an example, it is a difficult point in hydrological forecasting that the establishment of a flood forecasting system for inflowed reach of complex interval is difficult. The accuracy of peak forecast is the key of flood forecasting process. BPPR network model is used to build BPPR flood forecasting model of Cuntan Station Predicted the Cuntan station from 2008 to 2010, the flood process. The results show that the model has a high accuracy of mapping the flood peak and the flood process, and the prediction result is satisfactory.