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ice booming in Yosemite

Subject: ice booming in Yosemite
From: "Dan Dugan" dandugan_1999
Date: Thu Jan 19, 2012 6:29 pm ((PST))
An extraordinary time in Yosemite. January 17 and still no snow, Tioga Pass=
 Road was still open. All the lakes were booming loudly as the temperature =
changed in the day. Geologist Val Zimmer and I went to record at Dog Lake, =
undisturbed by people or traffic. Val hypothesized that the lack of an insu=
lating cover of snow made the phenomenon happen every day. Cheryl Leonard l=
oaned us her pair of Aquarian hydrophones. The air array was Sennheiser MKH=
 20s on a Jecklin Disk.

The two clips are from exactly the same time, in the air and in the ice.

http://soundcloud.com/user7860487/sets/ice-booming-on-dog-lake-in

-Dan





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