Researchers test drones to measure volcanic gases

Science

Yahoo

German researchers tested two drone-based approaches to measure volcanic gases on the Aeolian island of Vulcano, aiming to map concentrations and improve eruption forecasting without exposing people to plumes. A Technical University of Munich system used a ground laser and drone reflector to compute gas concentration maps in 10–15 minutes from up to 60 metres, while a University of Mainz drone called Tina (2.5 kilograms) flew into fumaroles at 100–140°C carrying sensors for gases, particles and halogens. Teams said drones offer flexible, lower-risk sampling, but they noted plume corrosion would challenge sensors; the groups plan further tests including at Mount Etna.

Drones can map volcanic gas concentrations without putting people at risk