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Stormwater Management Plan Updated for Climate System Changes

by Yuan Cheng, (M.ASCE),



Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water

Abstract:

When large watershed stormwater management plans are updated, climate system change factors due to global warming effects should be considered. Climate system changes may cause changes in rainfall depth and frequency throughout the next decades. Gumbel's Extremal Distribution is used to fit the adjustment for rainfall depth and frequency when global annual average precipitation is increased by 10%. The adjusted rainfall frequency curve can be applied to hydrologic rainfall-runoff models to revise flood frequency changes and update the stonuwater management plan.

Subject Headings: Stormwater management | Rainfall frequency | Hydrologic models | Climate change | Flood frequency | Watersheds | Rainfall-runoff relationships

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