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You are browsing the archive for infrasound Archives - AGU Blogosphere.

23 October 2020

Fireball in the sky over Alaska

Fee, who is also a researcher with the Alaska Volcano Observatory, finds infrasound useful for capturing the explosive roar of volcanoes. Scientists have also detected the aurora borealis stirring the thin air above us, and the air disturbed by far-off mine explosions. And, it turns out, infrasound is also a good tool for measuring the path of space rocks screaming through the 30-mile shell of gases surrounding our planet.

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31 August 2017

Low-frequency sea sounds ring clear at high altitudes

A new study shows microphones suspended from helium balloons in the stratosphere can detect low-frequency sounds from ocean waves. The new method shows promise for detecting acoustic signals from natural disasters and nuclear explosions that cannot always be reliably detected by sensors on the ground, according to the study’s authors.

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