Features of Propagation and Transformation of Low-Frequency Hydroacoustic Signals on a Shelf of Decreasing Depth

By the analysis of the experimental data and model calculations, features of the propagation of hydroacoustic signals over a shelf of decreasing depth generated by a low-frequency hydroacoustic emitter at a frequency of 22 Hz and their transformations at the “water–bottom” interface into the Rayleig...

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Bibliographic Details
Published inDoklady earth sciences Vol. 491; no. 2; pp. 285 - 289
Main Authors Dolgikh, G. I., Shengchun, Piao, Budrin, S. S., Yang, Song, Dolgikh, S. G., Ovcharenko, V. V., Chupin, V. A., Yakovenko, S. V., Yang, Dong, Xiaohan, Wang, Shvets, V. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.04.2020
Springer
Springer Nature B.V
Subjects
Earth and Environmental Science
Earth crust
Earth Sciences
Emitters
Lasers
Oceanology
Propagation
Rayleigh waves
Underwater acoustics
laser strainmeter
energy density
hydroacoustic signal
transformation
Rayleigh waves
hydroacoustic emitter
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Summary:By the analysis of the experimental data and model calculations, features of the propagation of hydroacoustic signals over a shelf of decreasing depth generated by a low-frequency hydroacoustic emitter at a frequency of 22 Hz and their transformations at the “water–bottom” interface into the Rayleigh waves recorded by a coastal laser strainmeter are studied. Energy estimates for the propagating hydroacoustic signals are presented at different points on the shelf; and such estimates for the transformed seismic–acoustic signals are obtained at the location of a laser strainmeter in the Earth’s crust.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X20040030