The study of volcanoes is of primary importance due to the great impact that eruptions can have on the economy, safety, air traffic, and several other human activities. A main indicator of volcanic activities, crucial to predicting events, is based on the analysis of gases emitted from a volcano's vents. Acquisition of gas samples is, however, challenging due to extreme working conditions and safety precautions. A further challenge is also locating and relocating volcanic gas measurement devices, as plume density and direction can quickly change. In this paper, we propose to use an open-path gas analyzer mounted on a Pan-Tilt Unit that tracks a multirotor equipped with suitable mirrors. This allows to autonomously perform gas measurement missions in volcanic environments via Tunable Diode Laser Absorption Spectroscopy. The great advantage brought by such a multirotor-based approach is the rapid and accurate measurement of gases, which makes monitoring and prediction activities safer, timely, and cost-effective. The effectiveness and accuracy of the proposed approach has been tested in a real application.
Drone-assisted Remote Gas Sensing in Volcanic Scenarios
2024-06-04
2860930 byte
Conference paper
Electronic Resource
English
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