Acoustical Physics

, Volume 54, Issue 3, pp 346–352

Surface-to-volume wave conversion in shallow water with a corrugated bottom

Authors

    • CIRESUniversity of Colorado at Boulder and NOAA / Earth System Research Laboratory
Ocean Acoustics and Underwater Sound

DOI: 10.1134/S1063771008030081

Cite this article as:
Godin, O.A. Acoust. Phys. (2008) 54: 346. doi:10.1134/S1063771008030081
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Abstract

Acoustic transmission between points onshore or in very shallow water and points in deep water is strongly influenced by the shear rigidity of marine sediments, which control the parameters and the very existence of seismoacoustic surface waves. Previously, it was found that coupling between acoustic modes and the seismoacoustic surface waves is normally weak, although not negligible in the case of a gently sloping seafloor and soft sediments. In this paper, the previous work is extended by accounting for the small-scale roughness of the seafloor. The significant role of roughness in coupling between volume and surface waves is demonstrated. The combined effect of bottom topography, roughness, and wave attenuation in soft marine sediments on the sound propagation between points in shallow and deep water is discussed.

PACS numbers

43.30.Ma43.30.Hw43.30.Bp
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Copyright information

© Pleiades Publishing, Ltd. 2008