Determining and Mitigating the Impacts of Climate Change on Stormwater Management and Hydrology in Wisconsin

TitleDetermining and Mitigating the Impacts of Climate Change on Stormwater Management and Hydrology in Wisconsin
Publication TypeConference Paper
Year of Publication2010
AuthorsSchuster, Zachary T., and Potter Kenneth W.
Conference NameProceedings of the 2010 Watershed Management ConferenceWatershed Management Conference 2010: Innovations in Watershed Management under Land Use and Climate Change
PublisherASCE
Conference LocationMadison, Wisconsin
Keywordsclimate change, Hydrology, stormwater management, WISCONSIN
Abstract

Studies on the impacts of anthropogenic climate change have found that the magnitude and frequency of intense precipitation events are expected to increase over the next century. The goal of this paper is to determine the projected changes in Wisconsin’s precipitation using statistically-downscaled GCM data and assess how those changes will impact the design of stormwater-related infrastructure in the state. The primary findings are that the magnitude of low-frequency, high-intensity events are projected to experience significant but modest increases, and the total amount of precipitation and frequency of intense events during March and April are projected to increase as well. Adaptation strategies for the increases in low-frequency quantiles are available, and additional hydrologic studies are needed to determine the potential impacts of the March and April precipitation changes.