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Bubbles at the top and bottom of the water column: the acoustical effects, and the use of acoustics to measure them

Bubbles at the top and bottom of the water column: the acoustical effects, and the use of acoustics to measure them
Bubbles at the top and bottom of the water column: the acoustical effects, and the use of acoustics to measure them
Bubbles of atmospheric gas can be entrained by breaking waves at the top of the water column: this bubble population is dynamic, and will evolve through the effects of buoyancy, gas exsolution and dissolution, and the fragmentation and coalescence of bubbles. These processes are important to ambient noise, sonar operation, and the overall gas budget of the planet. At the base of the water column, methane bubbles can occur in marine sediments, a phenomenon important to the global methane budget, to the petrochemical industry, and to the stability of the sediment (e.g., for civil engineering purposes). This paper examines the acoustical effects of both of these populations, and the ways in which acoustics can be used to measure them. Data will be presented from field trials, including measurements of gassy marine sediments in UK waters, and of wave-generated bubble clouds measured by an 11 m spar buoy deployed from 16th June to 18th July 2007 at a distance of 400 miles off the west coast of Portugal. ©2008 Acoustical Society of America
0001-4966
3085
Leighton, Timothy G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Coles, David C.
de60477c-eb71-49e0-8038-5d2d030aa053
Ainslie, Michael A.
ef0d34f3-87cb-49ec-89ef-ef0e596cd2f6
White, Paul R.
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Leighton, Timothy G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Coles, David C.
de60477c-eb71-49e0-8038-5d2d030aa053
Ainslie, Michael A.
ef0d34f3-87cb-49ec-89ef-ef0e596cd2f6
White, Paul R.
2dd2477b-5aa9-42e2-9d19-0806d994eaba

Leighton, Timothy G., Coles, David C., Ainslie, Michael A. and White, Paul R. (2008) Bubbles at the top and bottom of the water column: the acoustical effects, and the use of acoustics to measure them. Journal of the Acoustical Society of America, 123 (5), 3085. (doi:10.1121/1.2932907).

Record type: Article

Abstract

Bubbles of atmospheric gas can be entrained by breaking waves at the top of the water column: this bubble population is dynamic, and will evolve through the effects of buoyancy, gas exsolution and dissolution, and the fragmentation and coalescence of bubbles. These processes are important to ambient noise, sonar operation, and the overall gas budget of the planet. At the base of the water column, methane bubbles can occur in marine sediments, a phenomenon important to the global methane budget, to the petrochemical industry, and to the stability of the sediment (e.g., for civil engineering purposes). This paper examines the acoustical effects of both of these populations, and the ways in which acoustics can be used to measure them. Data will be presented from field trials, including measurements of gassy marine sediments in UK waters, and of wave-generated bubble clouds measured by an 11 m spar buoy deployed from 16th June to 18th July 2007 at a distance of 400 miles off the west coast of Portugal. ©2008 Acoustical Society of America

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Published date: May 2008

Identifiers

Local EPrints ID: 57842
URI: https://eprints.soton.ac.uk/id/eprint/57842
ISSN: 0001-4966
PURE UUID: d29cff70-243b-45b3-a860-f0ff1b9ee1e9
ORCID for Timothy G. Leighton: ORCID iD orcid.org/0000-0002-1649-8750
ORCID for Paul R. White: ORCID iD orcid.org/0000-0002-4787-8713

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Date deposited: 20 Aug 2008
Last modified: 14 Mar 2019 01:54

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Contributors

Author: David C. Coles
Author: Michael A. Ainslie
Author: Paul R. White ORCID iD

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