Glaciers could become a powerful tool for monitoring some volcanoes, according to new research that shows for the first time how the altitude of glaciers located on volcanoes could signal future unrest including the threat of an eruption.
Monitoring volcanoes is dangerous, expensive, and logistically challenging. About 250 volcanoes worldwide are covered byBut scientists have now shown how glaciers can provide important clues on the behavior of volcanoes, by sensing their temperature.
Prior to a period of unrest the temperature of a volcano often increases and by establishing a link between volcanoes and glaciers sitting on them, scientists can now tell which volcanoes have a higher temperature and might be more likely to erupt, and so prioritize monitoring. It could even be used when other monitoring techniques are not possible.
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