USGS employees and Cooperators watching AEM survey helicopter towing hoop liftoff
USGS employees and Cooperators watching AEM survey helicopter towing hoop liftoffUSGS employees and cooperators watching and photographing helicopter lifting off with geophysical equipment loop below attached via slingload. In March 2022, a helicopter carried an airborne electromagnetic induction sensor over parts of southeast and southwest Wisconsin as part of a USGS study to map the aquifers in the region.