模型初始场同化技术在黄孝河机场河流域模型中的应用OACSTPCD

This paper introduces the application of model initial field assimilation technology in online simulation and prediction of Huangxiao River Jichang River Basin(hereinafter referred to as the"Huangji Basin").Due to the irregular spatial and temporal distribution of rainfall,the water level of the pipe network in the Huangji Basin change complicatedly.The difference between prediction and measurement is large,and the prediction result is small.In order to make full use of the limited monitoring point data in the basin,realize the rapid rolling prediction of the basin,and ensure the accuracy of the prediction,the initial field assimilation technology of the model is innovatively applied to the Huangji Basin model,and the online simulation prediction is carried out every 10 min.The application results show that the application of initial field assimilation technology in the comprehensive management of urban pipe network and river basin water environment is feasible.The accuracy of online simulation is greatly improved after the initial field assimilation technology is adopted in the Huangji Basin model.At present,the initial field assimilation technology has been officially launched,providing a certain degree of reliable online simulation prediction for the overflow risk of the Huangji system.In the future,stable and reliable monitoring data can be provided by increasing monitoring points for assimilation.Integrating the actual scheduling rules,mastering the working conditions of on-site real-time scheduling,and continue to optimizing and improving the prediction accuracy.