UWM Digital Commons (University of Wisconsin–Milwaukee) · 2019 · 15 citations · 41 references
Open access
Natural ResourcesHydrologyWater Resources ManagementStormwater ManagementWater Resources EngineeringWatershed HydrologyGreen Infrastructure HydrologyStormwater DrainageStormwater Drainage SystemsStormwater HydrologyStormwater Management PolicyWatershed ResponseGreen Infrastructure EffectivenessGreen Infrastructure EffectsGreen Stormwater InfrastructureSpatial Distribution Of RunoffStormflow DynamicsStormwater Management InfrastructureWatershed Streamflow Response
Green Stormwater Infrastructure (GSI) has become a popular method in urban stormwater management. We examined how spatial distribution of GSI affected rainfall-runoff relationships in a recently developed neighborhood in Gresham, Oregon, USA for the 2017-2018 water year. Runoff ratio, peak discharge, and flashiness were compared under four precipitation scenarios (of differing intensity and duration) and different spatial arrangements of GSI. Distributed GSI reduced runoff ratio (10 - 20%), peak discharge (26 - 68%), and flashiness index (56 - 70%). Distributed GSI outperformed centralized structures for all metrics, reducing runoff ratio (22 - 32%), peak discharge 67 to 69%, and flashiness index (32 - 62%). This research serves as a basis for urban stormwater managers to understand potential impact of GSI on reducing runoff and downstream flooding in small urban watersheds with frequent rain.
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Adapting Cities for Climate Change: The Role of the Green Infrastructure
Stephen Gill, J. F. Handley, A. Roland Ennos et al. · Built Environment · 2007 · 1.9K citations