摘要
三峡区间的数字流域水系模型采用基于格网型的数字高程模型坡面流模拟方法和处理"洼地"的最短流程法构建,并以新安江模型为基础建立具有诸多特点的三峡区间流域水文模型;以水动力学理论为基础建立考虑水利工程影响的河川型水库洪水演进模型,并实现这两者的有机耦合。在GIS平台上,将三峡区间流域水文模型、库区洪水演进模型和流域水系生成模型在底层集成,研制了功能先进和完善的三峡水库实时洪水预报系统。该系统已安装在三峡总公司梯级水库调度中心,投入试运行。
A watershed drainage network generation model (WDNGM) was developed in the Three Gorges watershed on the basis of the hill slope flow modeling approach and the shortest flow course method for filling sink, using the digital elevation model (DEM). The Xinanjiang model was improved for development of a watershed hydrological model characterizing the Three Gorges watershed. Based on the hydraulic dynamic theory, a flood routing model of the river channel pattern reservoir in the Three Gorges, considering the water project operation influences, was established and fully coupled with the watershed hydrologic model. On the GIS platform, a real-time flood forecasting system was developed by integrating the watershed hydrological model, the flood routing model and the WDNGM in the Three Gorges watershed, which its functions are advanced and complete. This system has been installed and test operated by the reservoir control center of Three Gorges Company.
出处
《水科学进展》
EI
CAS
CSCD
北大核心
2003年第6期677-681,共5页
Advances in Water Science
关键词
三峡工程
入库水量
洪水演算模型
地理信息系统
洪水预报
水库调度
Forecasting
Geographic information systems
Hydraulics
Mathematical models
Real time systems
Reservoirs (water)
