Sound of Global Warming

    Published: 06-16-2009
    Views: 7,530
    Scientists from the University of Alaska identified and recorded the sound of ice melt and say that it could be used to help measure the rate of ice melt.

    ntists at the University of Alaska have identified and recorded the sizzle of glacial ice as it melts into the sea.  As the ice melts, trapped air bubbles squirting under the disappearing ice creates a noise that could provide clues at the rate of glacier melt.  The sound is even more prominent underneath the water.  They confirmed this sound/melting relationship in a controlled lab experiment where they recorded sounds around 1-3 kilohertz in frequency, making it audible to humans.  They say that the can use the intensity of bubble squirts to measure the ice melt rate in order to use sound to compliment other ice melt measurements.  Researchers said “images carry a stronger emotional impact than the symphony of melting ice,  [but] sound still has its own story to tell.”