My grad student Ashleigh Kirker is trying to understand overland flow and its sources. We tested mapping overland flow with a controlled icewater input using our new drone with a thermal camera. We pumped ice water from a black garbage can onto the hillslope. The drone did a pretty good job of mapping overland flow in grass that otherwise hides the water running downhill (dark area on IR image). Chris Kobol and Susan Spinella-Sacks provided field assistance!
