Viewing Groundwater From the Air

Came across this UW-Madison News article via APB. I've mentioned do-it-yourself imagery before.

The plane was designed to fly a selected route on autopilot while snapping thermal infrared photos of the terrain below. These low elevation photos provide much more detail than satellite imagery at a significantly lower cost than sending a piloted plane to do the same job. The thermal photos will help map areas where cold groundwater springs enter surface streams, an important first step toward implementing the state's new groundwater protection law, 2003 Wisconsin Act 310.