Abstract

Combining lidar and TIR imagery to search for geothermal features in O
Track: Mining and Geosciences
Authors: Ian Madin

We analyzed lidar and thermal infrared (TIR) imagery to test whether we could find warm springs and warm ground. To eliminate non-geothermal effects, we used insolation tools to test the effect of latent solar heat, and used lidar slope maps and multivariate tools to test the effect of look angle. To isolate the TIR data from soil and rock we built masks using lidar, then used focal statistics to rebuild a seamless image. We mapped dozens of warm and cold springs, and some subtly warm ground.