GIS-based urban rainfall-runoff modeling using an automatic catchment-discretization approach: a case study in Macau
GIS-based urban rainfall-runoff modeling using an automatic catchment-discretization approach: a case study in Macau
复制标题
DOI：
10.1007/s12665-009-0045-1
复制
发表时间：
2009-01
影响因子：
2.8
通讯作者：
Dong-quan Zhao;Jining Chen;Haozheng Wang;Q. Tong;Shangbing Cao;Sheng Zheng
中科院分区：
文献类型：
--
作者：
Dong-quan Zhao;Jining Chen;Haozheng Wang;Q. Tong;Shangbing Cao;Sheng Zheng
降雨径流模型在城市水资源管理中具有重要作用。美国环境保护署（EPA）开发的雨水管理模型（SWMM）是一种广泛应用于分析城市排水系统水量和水质问题的雨水径流动态模型。在理想情况下，SWMM模型将使用集水建模系统的集合进行设计和分析。传统上，流域径流建模的流域离散化是在流域地图上手动执行的，这是一项耗时的工作，结果不太准确。提出了一种基于地理信息系统（GIS）的流域离散化方法。自动离散方法已成功地应用于使用SWMM模型的澳门径流模拟。结果表明，所提出的方法优于传统的流域离散化方法产生有意义的参数，并避免了大部分繁琐的初步任务。
Rainfall-runoff models play an important role in urban water resource management. The storm water management model (SWMM) developed by the US Environmental Protection Agency (EPA) is a widely used dynamic rainfall-runoff model for analyzing quantity and quality problems associated with urban drainage systems. In an ideal situation, the SWMM model would be designed and analyzed using a collection of catchment modeling systems. Traditionally, catchment discretization for rainfall-runoff modeling is performed manually on watershed maps, a time-consuming job with less-than-accurate results. An alternative approach to catchment discretization based on geographic information system (GIS) is proposed in this paper. The automatic discretization approach was successfully applied to rainfall-runoff modeling in Macau using a SWMM model. The results showed that the proposed approach outperformed the conventional catchment-discretization method in terms of producing meaningful parameters and avoiding most of the tedious preliminary tasks.