https://www.nbcnews.com/mach/science/antarctic-ice-shelf-singing-it-sounds-eerie-sci-fi-soundtrack-ncna921676
Citando:
"The discovery of the singing ice came by accident.
To learn more about the ice shelf, which floats on the Southern Ocean next to the Antarctic continent, researchers in 2014 buried dozens of seismic sensors under the shelf's snowy surface. But when the scientists set about to analyze more than two years of data collected by the sensors, they discovered that the shelf's rough surface — what scientists call the firn layer— was almost constantly vibrating.
The scientists also discovered that the frequency of the vibrations changed in response to changing weather conditions on the shelf — when the temperature rose or fell, for instance, and when storms resculpted the shelf's snow dunes."
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