The Under-ice Soundscape of the Southern Beaufort Sea Observed During ICEX-16
Abstract
Located approximately 175 nautical miles north of Prudhoe Bay Alaska, Ice Camp SARGO was the remote hub of operations for the multi-national naval exercise ICEX-16 held in March 2016. Continuous acoustic recordings of the under-ice soundscape were collected at various depths over a three day period in the vicinity of the ice camp as it drifted westward across the Beaufort Sea. Significant changes in environmental conditions resulted in irregular ice motion during the period of observation inducing notable ice cracking and ridging events near the camp. Ice movement slowed from about 0.5 knots early in the test to virtually coming to a halt near the end of the recording period. Sounds from naturally occurring and anthropogenic sources in the 10-Hz to 10-kHz band detected in the recordings were analyzed in connection to the origins of the sound and correlated to varying environment conditions including wind speed and ice motion. Results show a wide variety of persistent and transient sources contribute to the total soundscape of this remote location.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2016
- Bibcode:
- 2016AGUFM.P34A..07J
- Keywords:
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- 0774 Dynamics;
- CRYOSPHEREDE: 4540 Ice mechanics and air/sea/ice exchange processes;
- OCEANOGRAPHY: PHYSICALDE: 5422 Ices;
- PLANETARY SCIENCES: SOLID SURFACE PLANETSDE: 8045 Role of fluids;
- STRUCTURAL GEOLOGY