3D Geophysical Mapping Using Airborne Electromagnetics in Support of Groundwater Management

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Groundwater research is often hindered by the scarcity of information about the subsurface, leading to uncertainty in groundwater model predictions and resource management decisions.  Borehole and well data, where available, represent invaluable but spatially limited windows into the hydrogeologic conditions at depth, and it can be difficult to assess how conditions change between these points.  To fill in the gaps, the USGS has been using airborne electromagnetic (AEM) methods as part of a number of groundwater-resource and related studies.  AEM data can be used to develop s