Noise monitoring in Glacier Bay National Park, AK

In 2012 and 2013 our lab conducted short-term bottom-mounted deployments to explore the human noise signatures within both restricted and wilderness areas of Glacier Bay National Park.

In 2012 we had 1.5 month deployments in Hugh Miller Inlet and Blue Mouse Cove, and 2013 we attempted a more ambitious set of deployments that created many “lessons learned” but little data.

We are still in the process of qualitatively reviewing sounds from 2012, but we’ve stumbled across some interesting stuff (Thanks to volunteer Cheyne Hayes for finding this!) .  For example, we believe the sound sample below is that of a humpback breaching VERY close to the bottom-mounted phone.  Both the spectrogram and sound file are available below.  If you can, listen on a big speaker or woofer.  Be patient, the really good sounds start 55 s into the file…

Spectrogram of a whale breaching, with strong calls, in Scidmore Bay, August 10, 2012, 5:21 PM
Spectrogram of a whale breaching, followed by intense calling, in Scidmore Bay, August 10, 2012, 5:21 PM

Here is the acoustic file…

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We listen.

scripps oceanography uc san diego