More than half of the world's active volcanoes are not monitored instrumentally.
Hence, even eruptions that could potentially have rung an alarm can occur without people at risk having a clue of the upcoming disaster.
Through tests with data from recent events, Valade and his colleagues demonstrated that their platform called MOUNTS (Monitoring Unrest from Space) can integrate multiple sets of diverse types of data for a comprehensive monitoring of volcanoes.
The team's results were published in the journal Remote Sensing.
Due to the cost and difficulty to maintain instrumentation in volcanic environments, less than half of the active volcanoes are monitored with ground-based sensors, and even less are considered well-monitored.
Volcanoes considered dormant or extinct are commonly not instrumentally monitored at all, but may experience large and unexpected eruptions, as was the case for the Chaitén volcano in Chile in 2008 which erupted after 8000 years of inactivity.