长江中下游水文学洪水演进模型研究

以三峡为中心的长江中下游防洪调度系统需建立三峡库区和坝下游洪水演进数学模型.根据该系统的特点,将模型分解为三峡库区和坝址至湖口两大子系统,采用水文学方法进行洪水演进计算.经1981年、1983年等典型年洪水资料的检验,成果精度较高.引进计算机辅助计算技术,克服了以往模型的缺点.

Hydrologic Flood Routing Model for the Middle and Lower Yangtze River

In this paper, amathematicalmodelof flood routing for Three-Gorge-Reservoir-centered flood control system is developed.The system is decoupled into two subsystems, namely the upper-dam-site subsystem and the dam-site-Hukou sub system，according to its nature.The flood routing is carried outw ith hydrology methods. Testedw ith observed data of 1981 and 1983 flood events, it appears that the model holds satisfactory accuracy.The model also has advantages over past modelswith the introduction of computer-aided techniques.