Improvements in Volcanic Ash detection with Himawari-8
Satellite data are used routinely to monitor Volcanoes for eruptions that can be potential aviation hazards. The Himawari-8 false-color image, above, derived from Himawari-8 AHI data, includes a volcanic plume that, even without the image annotation, is easy to detect. Consider the same scene, below, derived from MTSAT-2 imagery. The volcanic plume is far more difficult to discern. The superior spatial resolution on Himawari-8 IR channel data (2-km, vs 5-km on MTSAT) allows for better detection of this ash plume from Klyuchevskoy.