Listen
Tip: press play to see the sound's live frequency spectrum in blue over the waveform.
About this sound
Bubbles create unusual patterns of sound as they rapidly escape from deep within the glacial ice (firn). Recorded by the Upper Dall Glacier Sound Station.
Why parks record sound
The NPS Natural Sounds and Night Skies Division monitors soundscapes in parks across the United States. Natural quiet is treated as a resource to protect, like clean air or dark skies: noise from aircraft, vehicles and machinery can mask animal communication and change the experience of a place.
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Sources & credits
- Glacier Audio Clip by US National Park Service – Public domain