Anisotropic field of background internal waves on a sea shelf and its effect on low-frequency sound propagation |
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| Authors: | V M Kuz’kin O Yu Lavrova S A Pereselkov V G Petnikov K D Sabinin |
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| Institution: | (1) Wave Research Center, Prokhorov Institute of General Physics, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991, Russia;(2) Space Research Institute, Russian Academy of Sciences, ul. Profsoyuznaya 84/32, Moscow, 117910, Russia;(3) Voronezh State University, Universitetskaya pl. 1, Voronezh, 394693, Russia;(4) Andreev Acoustics Institute, Russian Academy of Sciences, ul. Shvernika 4, Moscow, 117036, Russia |
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| Abstract: | The space-time spectral characteristics of the field of background internal waves (IW) are obtained for two oceanic shelf
regions (the Atlantic shelf of the United States and the Kamchatka shelf) and analyzed. Within the framework of a numerical
experiment, it is shown that the observed anisotropy of the IW field may considerably affect the low-frequency sound fluctuations
in the aforementioned regions and, in particular, may change the interference invariant of the sound field. |
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