Hydrothermal monitoring of Norris Geyser Basin, Yellowstone National Park, USA, using airborne thermal infrared imagery

•Airborne night-thermal infrared imagery is used to monitor Norris Geyser Basin in Yellowstone.•Uncorrected radiated geothermal power is quantified for specific geohydrologic areas.•Power-temperature histograms illustrate hydrothermal characteristics of geohydrologic areas.•Changing thermal infrared spatial patterns are shown for several years.•Carefully defined geohydrologic areas are important for quantifying hydrothermal change.