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Scattering from a rough sedimental seafloor containing shear and layering, as determined by perturbation theory

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Abstract
First-order perturbation theory is applied to reverberation from a rough sedimental seafloor. In addition to existing approaches, the seafloor is allowed to be shear-supporting or to be layered. Scattering strengths are derived for both monostatic and bistatic reverberation, and compared with results from a non-layered fluid bottom. By exceeding some 350 ms-1, shearwave velocity significantly influences scattering strength for angles below the critical angle of total reflection. Layering, as modelled by a two-layer fluid seafloor, mainly influences scattering at grazing angles just above critical.

URI
http://hdl.handle.net/20.500.12489/220

Report Number
SM-271

Collections
  • Technical Reports

Date
1993/07

Author(s)
Essen, Heinz-Hermann

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SM-271-UU.pdf (3.100Mb)

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