Directionality of the ambient noise field in an Arctic, glacial bay
The directionality of ambient noise in an Arctic tidewater glacier bay was measured using two horizontally spaced, broadband hydrophones. Segments of noise were divided into two frequency bands and analyzed for arrival angle. These data show that different classes of source radiate noise in distinct...
| Published in: | The Journal of the Acoustical Society of America |
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| Main Authors: | , , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://researchportal.bath.ac.uk/en/publications/78f130c8-c4a1-4e89-a909-ed3fec26f484 https://doi.org/10.1121/1.4897354 https://purehost.bath.ac.uk/ws/files/92098482/Deane_etal_JASAEL_2014_DAB.pdf http://scitation.aip.org/content/asa/journal/jasa/136/5/10.1121/1.4897354 |
| Summary: | The directionality of ambient noise in an Arctic tidewater glacier bay was measured using two horizontally spaced, broadband hydrophones. Segments of noise were divided into two frequency bands and analyzed for arrival angle. These data show that different classes of source radiate noise in distinct spectral bands and are spatially diverse. A previously unidentified source, the interaction of surface gravity waves with underside of ice ledges at the periphery of icebergs, is described. The generation of noise by ice-wave interaction suggests that surface waves should be measured if ambient noise is to be used to monitor ice dynamics in glacial fjords. |
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