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A Spatio-Temporal Analysis Of Groundwater Level Changes In Relation To Urban Growth And Groundwater Recharge Potential For Waukesha County, Wisconsin, Woonsup Choi, Ulrike Galasinski, Sung-Jin Cho, Chul-Sue Hwang

Geography Faculty Articles

The main objective of this study was to spatially and temporally analyze groundwater level changes using geographic information systems and spatial analysis with respect to urban development, groundwater water withdrawal, and groundwater recharge potential. The study focused on Waukesha County in southeastern Wisconsin, where urban development has been accelerating while groundwater has been declining during the last several decades. We analyzed data about groundwater withdrawal, groundwater level, land use/land cover, and precipitation utilizing correlation analysis, Geographically Weighted Regression (GWR), land-use change analysis, and map overlay. As a result, we found that (1) Urban areas increased faster in areas with high …