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Influence of Bottom Irregularities on Caustic Beam Propagation in Oceanic Waveguides

Influence of Bottom Irregularities on Caustic Beam Propagation in Oceanic Waveguides 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acoustical Physics Springer Journals

Influence of Bottom Irregularities on Caustic Beam Propagation in Oceanic Waveguides

Petukhov, Yu. V.; Borodina, E. L.
Acoustical Physics , Volume 67 (5) – Sep 1, 2021
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Publisher
Springer Journals
Copyright
Copyright © Pleiades Publishing, Ltd. 2021. ISSN 1063-7710, Acoustical Physics, 2021, Vol. 67, No. 5, pp. 486–493. © Pleiades Publishing, Ltd., 2021. Russian Text © The Author(s), 2021, published in Akusticheskii Zhurnal, 2021, Vol. 67, No. 5, pp. 505–513.
ISSN
1063-7710
eISSN
1562-6865
DOI
10.1134/s1063771021050067
Publisher site
See Article on Publisher Site

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.

Journal

Acoustical Physics – Springer Journals

Published: Sep 1, 2021

Keywords: oceanic waveguides; underwater sound channels; tonal radiation; vertical arrays; caustic beams; bottom irregularities

References