Researchers at the Technical University of Munich (TUM) have developed a groundbreaking system using autonomous drones to measure volcanic gas clouds, significantly improving eruption warning signs. This innovative approach was first deployed on the Aeolian island of Vulcano on July 12, 2026, providing a clearer understanding of volcanic activity.
Advanced Measurement Techniques for Volcanic Gases
The new measurement system utilizes laser beams directed through gas clouds, with drones reflecting these beams to gather data. An algorithm processes the reflected signals to create a detailed map of gas concentrations, specifically focusing on the critical ratio of carbon dioxide to sulfur dioxide, which is vital for predicting eruptions.
According to Achim Lilienthal, deputy director of the TUM MIRMI Robotics Institute, this method offers greater precision and safety compared to traditional ground-level measurements, which are often contaminated by surrounding vegetation and soil emissions.
Autonomous Drones in Action
During the initial deployment, TUM researcher Marius Schaab utilized a laser mounted on a cart that autonomously aligned itself with a drone's reflector. The drone conducted flights up to 60 meters away, collecting up to 3,000 measurements within a span of 10-15 minutes. This advanced system achieved an impressive measurement error of only 5%.
“Our goal is to automate the measurement and mapping processes and have artificial intelligence interpret the data,” Lilienthal stated, highlighting the potential for further advancements in volcanic monitoring.
Comparative Approaches to Gas Measurement
Different research teams are exploring various methodologies for measuring volcanic gases. For instance, Thorsten Hoffmann from Johannes Gutenberg University Mainz employs onboard sensors in drones to analyze chemical concentrations in the air, using photometric measurement cells and electrochemical methods.
This diversity in approaches underscores the importance of accurately assessing gas concentrations, as they provide critical insights into subterranean processes. “The solubility of these gases in magma depends, among other things, on pressure and therefore changes with depth,” Hoffmann explained.
- Key features of TUM's drone system:
- Autonomous gas measurement over volcanic fields
- High precision with 5% measurement error
- Real-time mapping of gas concentrations
This cutting-edge research not only enhances the understanding of volcanic activity but also aims to improve safety measures for communities living near active volcanoes.
🤖 This article was rewritten by Feed and Figures' editorial AI from a report originally published by Phys.org. Facts and quotes are preserved from the original; the rewrite focuses on clarity and structure. For the unedited original, see the source link below.
