中文摘要：

对目前应用较广泛的地表径流污染负荷估算模型的分析表明，雨洪管理模型SWMM（Storm Water Management Model）是最适合于城市地表径流及其污染负荷研究的模型。SWMM已在国内外城市地区暴雨洪水的地表径流过程、地表径流量和污染负荷量的估算与预测，以及对合流式和分流式下水道、排污管道和其他排水系统的规划、分析、设计方面获得了成功应用。深入分析了SWMM中主要模块的基本原理和计算过程，总结了校准主要参数的方法；并对主要参数的敏感性进行了分析和总结，得出SWMM的敏感参数主要包括非渗透面积比例、地表渗透能力、坡面漫流宽度、非渗透地表洼蓄贮存深度、导管的长度和内径。最后，提出了SWMM尚存在的问题及今后的改进方向。

英文摘要：

Stormwater management model （SWMM） is a model most suitable tor estimating surtace runoff and its pollution load among the widely used models. SWMM has been successfully used in estimating and predicting surface runoff processes, surface runoff and pollution load during storm floods in urban areas, and planning, analyzing and designing combined and separate sewers, sewage pipes and other drainage systems. The main principles of modules of SWMM and their estimations were analyzed, and the calibration methods for main parameters and their sensitivities were summarized. It was found that the sensitive parameters in SWMM included percent of impervious area, surface infiltration capacity, width of overland flow path, depth of depression storage of impervious surface, length and internal diameter of conduit. Several existing problems in SWMM and corresponding suggestions for the future improvements were proposed.