Bubbles from glacier ice turn up the noise in Alaska fjords

March 11, 2015 6:00 PM

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Bubbles from glacier ice turn up the noise in Alaska fjords

In this photo taken May 14, 2009 and provided by the University of Washington, is the deployment of a hydrophone in Icy Bay, Alaska. Glaciologist Erin Pettit began a research project to find out what calving glacier ice sounded like to a humpback whale. The sound of the ice in the water turned out to be more interesting. Acoustic research in Alaska’s Icy Bay and other glacier ice-filled waters found that the fizz created by the release of air bubbles under high pressure makes fjords with glacier icebergs the noisiest places in the ocean. (AP Photo/University of Washington, Jeffrey Nystuen) (The Associated Press)

In this May 14, 2009 photo provided by the University of Alaska Fairbanks, a research crew and a boat crewman prepare to deploy a hydrophone to record underwater sound in Icy Bay, Alaska. Glaciologist Erin Pettit began a research project to find out what calving glacier ice sounded like to a humpbac...

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