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Influence of Bottom Irregularities on Caustic Beam Propagation in Oceanic Waveguides

  • OCEAN ACOUSTICS. HYDROACOUSTICS
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Abstract

Using the geometrical acoustics approximation and parabolic equation, we investigated the regularities in the spatial distribution of the acoustic field intensity generated by interaction between a caustic beam and bottom irregularities in a relatively shallow oceanic waveguide with an underwater sound channel open to the bottom. It is shown that when certain conditions are met, a multibeam structure of the spatial distribution of the acoustic field intensity is formed in the oceanic waveguide.

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Funding

The study was carried out under the state tasks of IAP RAS (topic nos. 0030-2021-0009, 0035-2019-0018).

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Authors and Affiliations

  1. Institute of Applied Physics, Russian Academy of Sciences, 603950, Nizhny Novgorod, Russia

    Yu. V. Petukhov & E. L. Borodina

Authors
  1. Yu. V. Petukhov
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  2. E. L. Borodina
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Correspondence to Yu. V. Petukhov or E. L. Borodina.

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Petukhov, Y.V., Borodina, E.L. Influence of Bottom Irregularities on Caustic Beam Propagation in Oceanic Waveguides. Acoust. Phys. 67, 486–493 (2021). https://doi.org/10.1134/S1063771021050067

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  • DOI: https://doi.org/10.1134/S1063771021050067

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