Abstract
Gas bubbles in sea water are most efficient sound scatterers. This is due to the fact that in a wide frequency range this scattering is of a resonance nature. The resonance scattering cross-section of an air bubble near the water surface, for example, is approximately 103 times its geometrical cross-section. The resonance bubbles not only scatter but absorb the acoustic energy, as well. Furthermore, at sufficiently high concentrations they markedly change the compressibility of water and, consequently, the sound velocity which appears to depend on the sound frequency.
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References
C. S. Clay, H. Medwin: Acoustical Oceanography (Wiley, New York 1977)
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W. Lauterborn (ed.): Cavitation and Inhomogeneities in Underwater Acoustics, Springer Series in Electrophysics, Vol. 4 (Springer, Berlin, Heidelberg, New York 1980)
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© 1982 Springer-Verlag Berlin Heidelberg
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Brekhovskikh, L., Lysanov, Y. (1982). Scattering and Absorption of Sound by Gas Bubbles in Water. In: Fundamentals of Ocean Acoustics. Springer Series in Electrophysics, vol 8. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-02342-6_11
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DOI: https://doi.org/10.1007/978-3-662-02342-6_11
Publisher Name: Springer, Berlin, Heidelberg
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