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CHICHAGO – The researchers recorded natural sounds in Antarctica – which are not normally heard by the human ear – which can help them predict when the ice walls will collapse in the future.
According to a study published in the journal Geophysical Research Letters, scientists have buried 34 extremely sensitive sensors below the surface of the snow-clad wall of Ross Sea Ice in order to monitor the vibrations and study their structure and movements between 2012 and 2017.
But they saw something odd: the cheese that wrapped the wall quivered almost constantly.
The wind blowing through the big snow-covered hills left the pieces of ice wall rumble like a giant drum.
"It's like you're blowing a flute, constantly, on a wall of ice," said Julien Chaput, the main author of the study.
Chaput said the weather could change the frequency of the vibrations, changing the tone.
"Whether you change the speed of the snow by heating or cooling it, or change the place where you blow the flute, adding or destroying the sand dunes."
"It's the essence of two coercive effects that we can observe."
According to glaciologist Douglas MacAyeal, of the University of Chicago, who is not involved in this research, the study of this vibration may allow scientists to know how the ice wall reacts to changes in weather conditions.
According to him, buzz changes could indicate whether the lake has melted or if cracks have formed on the ice and, therefore, if the wall of ice could collapse.
(Sal)
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