Effect of Aggregation of On-Site Storm-Water Control Devices in an Urban Catchment Model
Effect of Aggregation of On-Site Storm-Water Control Devices in an Urban Catchment Model
复制标题
DOI：
10.1061/(asce)he.1943-5584.0000064
复制
发表时间：
2009-09
影响因子：
2.4
通讯作者：
A. H. Elliott;S. Trowsdale;S. Wadhwa
中科院分区：
文献类型：
--
作者：
A. H. Elliott;S. Trowsdale;S. Wadhwa
空间分布的现场设备，如滞留水箱和生物保留器，作为控制城市雨水水量和水质的手段正变得越来越普遍。对此类设备的累积汇流比例效果进行建模的一种方法是将汇流分解为地块或更细的规模，然后分别对每个设备进行建模。这涉及到可能不可行的计算和输入数据要求，特别是在雨水系统设计的规划或初步设计阶段。为了减少这些需求，可以通过聚合地块和设备来粗化空间分辨率，但这可能会影响模型的精度。这项研究的重点是考察聚集对滞留、渗透和生物滞留装置的水量和水质(对于一种典型污染物，总悬浮固体)预测的影响。以一个面积为0.83km2的集水区为例，建立了城市雨水治理概念化模拟的详细模型。
Spatially distributed on-site devices such as detention tanks and bioretention are becoming more common as a means of controlling urban storm-water quantity and quality. One approach to modeling the cumulative catchment-scale effects of such devices is to resolve the catchment down to the scale of a land parcel or finer, and then to model each device separately. This involves computational and input data demands that may be impracticable, especially in planning or preliminary design stages of storm-water system design. To reduce these demands, the spatial resolution can be coarsened by aggregating land parcels and devices, but this may compromise model accuracy. The focus of this study was examination of the effects of aggregation on predictions of water quantity and quality (for a representative contaminant, total suspended solids) for detention, infiltration, and bioretention devices. A detailed model for urban storm water improvement conceptualization simulation was set up for a 0.83 km2 catchment wit...