Helicopter towing geophysical survey hoop via slingload for airborne electromagnetic (AEM) survey
Helicopter towing geophysical survey hoop via slingload for airborne electromagnetic (AEM) surveyHelicopter with geophysical equipment loop deployed below it via slingload. In January 2021 a helicopter carried an airborne electromagnetic induction sensor over parts of northeastern Wisconsin as part of a USGS study to map the aquifers in the region.