基于SWMM的北京市河流降雨分析

Analysis of Rainfall in Beijing Rivers Based on SWMM

提出了一种基于雨洪管理模型SWMM,并依据北京市河流雨季的径流曲线来分析北京市降雨径流特征,从而来探索北京市雨洪利用的方法。根据北京市河流、卫星资料、密云和北京雨量站的北京市降雨资料及气象资料等,建立了北京市河流降雨的SWMM仿真模型,对北京地区河流不同雨量观测站、同一条河流不同年分降雨及不同河流同一降雨下的降雨径流进行了模拟。从模拟结果可以看出,采用该方法能够模拟计算出北京市河流的降雨径流量,为北京市雨洪利用提供相应的支持。

This article proposed a method based on Storm Water Management Model and according to the Beijing rivers rainy season runoff curve to analyze the Beijing rainfall runoff characteristic, thus to explore the rainwater reuse in Beijing. According to the Beijing rivers＇ resources, the satellite material, Beijing rainfall material and the meteorological data of Miyun and the Beijing Precipitation station and so on, a Beijing rivers rainfall SWMM simulation model was established, the simulation was made for the Beijing area rivers of different rainfall observation station, for the identical rivers in different year and for the different rivers in identical rainfall season. The simulation result shows that this method can calculate the rainwater of Beijing rivers for supporting the rainwater utilizing in Beijing.