Dogan%20et%20al%20-%20Seabed%20and%20Sediment%20-%202015 (1).doc

6 conclusions a method for estimating the bubble size

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6 CONCLUSIONS A method for estimating the bubble size distribution and bubble void fraction in gassy marine sediments is presented. The method adapts a well-known inversion technique which is widely applied to bubbly waters. First, it is verified by testing analytical results and then applied to measurement data which were acquired via transmission experiments at Mercury site in UK. 7 REFERENCES 1. Judd, A. G., and Hovland, M. (1992). "The evidence of shallow gas in marine sediments" Continental Shelf Research 12, 1081-1095. 2. Anderson, A. L., Abegg, F., Hawkins, J. A., Duncan, M. E., and Lyons, A. P. (1998). "Bubble populations and acoustic interaction with the gassy floor of Eckernforde Bay," Continental Shelf Research 18, 1807-1838. 3. Clay, C. S., and Medwin, H. (1977). Acoustical oceanography: principles and applications (New York: Wiley). 4. Wever, T. F., Abegg, F., Fiedler, H. M., Fechner, G., and Stender, I. H. (1998). "Shallow gas in the muddy sediments of Eckernforde Bay, Germany," Continental Shelf Research 18, 1715-1739. 5. Best, A. I., Tuffin, M. D. J., Dix, J. K., and Bull, J. M. (2004). "Tidal height and frequency dependence of acoustic velocity and attenuation in shallow gassy marine sediments," J. Geophys. Res. 109. 6. Leighton, T. G., and Robb, G. B. N. (2008). "Preliminary mapping of void fractions and sound speeds in gassy marine sediments from subbottom profiles," J. Acoust. Soc. Am. EL313-EL320 124, 313-320. 7. Ainslie, M. A., and Leighton, T. G. (2009). "Near resonant bubble acoustic cross-section corrections, including examples from oceanography, volcanology, and biomedical ultrasound," J. Acoust. Soc. Am. 126, 2163-2175. 8. Commander, K., and McDonald, R. J. (1991). "Finite-element solution of the inverse problem in bubble swarm acoustics," J. Acoust. Soc. Am. 89, 592-597. 9. Leighton, T. G., Meers, S. D., and White, P. R. (2004). "Propagation through nonlinear time- dependent bubble clouds and the estimation of bubble populations from measured acoustic characteristics" Proceedings of the Royal Society 460, 2521-2550. Vol. 37. Pt.1 2015
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  • Fall '19
  • Frequency, Sediment, Hydrophone, Institute of Acoustics

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