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Effect of random hydrodynamic inhomogeneities on low frequency sound propagation loss in shallow water

  • Ocean Acoustics. Underwater Acoustics
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Abstract

Low frequency (100–500 Hz) sound propagation loss on the US Atlantic continental shelf and in the Barents Sea in the presence of stochastic surface waves, and for the US Atlantic shelf also in the presence of internal waves, is studied for the range of up to 150 km by means of numerical simulations. Qualitative difference between sound propagation loss behavior on the US Atlantic shelf and in the Barents Sea is demonstrated for summertime conditions even without random inhomogeneities. It is shown that whereas internal waves have a weak effect on propagation loss, surface waves result in its considerable increase in both areas under wintertime conditions with a wind speed of more than 9 m/s.

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Authors and Affiliations

  1. Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov St. 38, Moscow, 119991, Russia

    A. A. Lunkov & V. G. Petnikov

Authors
  1. A. A. Lunkov
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  2. V. G. Petnikov
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Corresponding author

Correspondence to V. G. Petnikov.

Additional information

Published in Russian in Akusticheskiĭ Zhurnal, 2010, Vol. 56, No. 3, pp. 364–372.

The article was translated by the authors.

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Lunkov, A.A., Petnikov, V.G. Effect of random hydrodynamic inhomogeneities on low frequency sound propagation loss in shallow water. Acoust. Phys. 56, 328–335 (2010). https://doi.org/10.1134/S1063771010030103

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  • DOI: https://doi.org/10.1134/S1063771010030103

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