Space-time sound field interference in the horizontal plane in a coastal slope region

B. G. Katsnel'son; A. Yu Malykhin

doi:10.1134/S1063771012020078

Space-time sound field interference in the horizontal plane in a coastal slope region

Research output: Contribution to journal › Article › peer-review

Abstract

The nonstationary interference structure formed in the horizontal plane in the field of a point source in a coastal slope region is analyzed on the basis of the space-time horizontal ray concept. For a model that includes the typical bathymetry and sound velocity profile, the space, time, and frequency dependences of the sound field are considered for different waveguide modes. The characteristic scales of the field variabil-ity in space and time are estimated. The frequency-time diagram is analyzed for the region of the interference of direct and reflected waves. The variability of the field interference structure in the presence of mesoscale perturbations is considered.

Original language	English
Pages (from-to)	301-307
Number of pages	7
Journal	Acoustical Physics
Volume	58
Issue number	3
DOIs	https://doi.org/10.1134/S1063771012020078
State	Published - May 2012
Externally published	Yes

Bibliographical note

Funding Information:
ACKNOWLEDGMENTS This work was supported by the Russian Founda tion for Basic Research (project nos. 11 02 00779 a, 10 02 92005 NNS_a) and the Ministry of Higher Education of Russian Federation (grant no. RNP.2.1.1/1029).

Keywords

Coastal slope
Horizontal refraction
Shallow water
Sound field interference

ASJC Scopus subject areas

Acoustics and Ultrasonics

Access to Document

10.1134/S1063771012020078

Cite this

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abstract = "The nonstationary interference structure formed in the horizontal plane in the field of a point source in a coastal slope region is analyzed on the basis of the space-time horizontal ray concept. For a model that includes the typical bathymetry and sound velocity profile, the space, time, and frequency dependences of the sound field are considered for different waveguide modes. The characteristic scales of the field variabil-ity in space and time are estimated. The frequency-time diagram is analyzed for the region of the interference of direct and reflected waves. The variability of the field interference structure in the presence of mesoscale perturbations is considered.",

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Space-time sound field interference in the horizontal plane in a coastal slope region

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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