Laboratory investigation of a passive acoustic method for measurement of underwater gas seep ebullition | Zendy

Chad A. Greene | Zendy; Preston S. Wilson | Zendy

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Laboratory investigation of a passive acoustic method for measurement of underwater gas seep ebullition

Author(s) -

Chad A. Greene,

Preston S. Wilson

Publication year - 2011

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.3670590

Subject(s) - petroleum seep , underwater , methane , acoustics , bubble , environmental science , trap (plumbing) , range (aeronautics) , natural gas , point source , geology , materials science , physics , chemistry , oceanography , mechanics , optics , organic chemistry , environmental engineering , composite material

Passive acoustic techniques are of interest as a low-power means of quantifying underwater point-source gas ebullition. Toward the development of systems for logging natural seep activity, laboratory experiments were performed that exploited the bubble's Minnaert natural frequency for the measurement of gas flow from a model seep. Results show agreement among acoustic, optical, and gas trap ebullition measurements over the range of emission rates from 0 to 10 bubbles per second. A mathematical model is proposed to account for the real gas behavior of bubbles which cannot be approximated as ideal, such as methane at marine depths exceeding 30 m.

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