A fascinating talk by Tricia Nadeau, USGS Hawaiian Volcano Observatory, on volcanic gas monitoring at Kīlauea.
This included sampling a groundwater-fed lake after a recent caldera collapse, using drones due to the difficult terrain and the possibility that the whole basin was filled with CO2...
#Volcanology #Kilauea #Hawaii #VolcanicGas #USGS_HVO #McGillUniversity

