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Urban stormwater inundation simulation based on SWMM and diffusive overland-flow model.

Authors :
Wenjie Chen
Han Zhang
Guoru Huang
Source :
Water Science & Technology. 2017, Vol. 76 Issue 12, p3392-3403. 12p. 1 Color Photograph, 5 Charts, 2 Graphs.
Publication Year :
2017

Abstract

With rapid urbanization, inundation-induced property losses have become more and more severe. Urban inundation modeling is an effective way to reduce these losses. This paper introduces a simplified urban stormwater inundation simulation model based on the United States Environmental Protection Agency Storm Water Management Model (SWMM) and a geographic information system (GIS)-based diffusive overland-flow model. SWMM is applied for computation of flows in storm sewer systems and flooding flows at junctions, while the GIS-based diffusive overland-flow model simulates surface runoff and inundation. One observed rainfall scenario on Haidian Island, Hainan Province, China was chosen to calibrate the model and the other two were used for validation. Comparisons of the model results with field-surveyed data and InfoWorks ICM (Integrated Catchment Modeling) modeled results indicated the inundation model in this paper can provide inundation extents and reasonable inundation depths even in a large study area. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
02731223
Volume :
76
Issue :
12
Database :
Academic Search Index
Journal :
Water Science & Technology
Publication Type :
Academic Journal
Accession number :
126754518
Full Text :
https://doi.org/10.2166/wst.2017.504