From geology to geoacoustics—Evaluation of Biot–Stoll sound speed and attenuation for shallow water acoustics

1998 ◽  
Vol 103 (1) ◽  
pp. 309-320 ◽  
Author(s):  
Mohsen Badiey ◽  
Alexander H-D. Cheng ◽  
Yongke Mu
Keyword(s):  
Shallow Water ◽  
Sound Speed ◽  
Shallow Water Acoustics

Hawaii Experimental Acoustics Range for Shallow Water Applications

2011 ◽  
Vol 45 (3) ◽  
pp. 69-76 ◽  
Author(s):  
Tom Fedenczuk ◽  
Eva-Marie Nosal
Keyword(s):  
Shallow Water ◽  
Water Environment ◽  
Shallow Water Acoustics ◽  
Central Node ◽  
Long Baseline ◽  
Wide Range ◽  
Shallow Water Environment ◽  
Near Shore ◽  
Monitoring And Surveillance ◽  
Passive Acoustic

AbstractShallow water acoustics provide a means for monitoring and surveillance of near-shore environments. This paper describes the current and future capabilities of the low- to high-frequency Hawaii Experimental Acoustics Range (HEAR) that was designed to facilitate a wide range of different shallow water acoustics experiments and allow researchers from various institutions to test various array components and configurations. HEAR is a portable facility that consists of multiple hydrophones (12‐16) cabled independently to a common central node. The design allows for variable array configurations and deployments in three modes: experimental (off boats and piers), autonomous, and cabled. An application of HEAR is illustrated by the results from a deployment at Makai Research Pier, Oahu, Hawaii. In this deployment, HEAR was configured as a long-baseline range of two volumetric subarrays to study passive acoustic tracking capabilities in a shallow water environment.

Sound speed profile inversion using a horizontal line array in shallow water

2014 ◽  
Vol 58 (1) ◽  
pp. 1-7 ◽  
Author(s):  
ZhengLin Li ◽  
Li He ◽  
RenHe Zhang ◽  
FengHua Li ◽  
YanXin Yu ◽  
...  
Keyword(s):  
Shallow Water ◽  
Sound Speed ◽  
Horizontal Line ◽  
Speed Profile ◽  
Sound Speed Profile ◽  
Line Array ◽  
Profile Inversion

scholarly journals Shallow water acoustics on the Canadian East Coast Continental Shelf

1988 ◽  
Vol 84 (S1) ◽  
pp. S150-S150
Author(s):  
Philip R. Staal ◽  
Steven J. Hughes ◽  
Dale D. Ellis ◽  
David M. F. Chapman
Keyword(s):  
Continental Shelf ◽  
Shallow Water ◽  
East Coast ◽  
Shallow Water Acoustics

Modal Perturbation Theory in the Case of Bathymetry Variations in Shallow-Water Acoustics

2021 ◽  
Vol 28 (2) ◽  
pp. 257-262
Author(s):  
P. S. Petrov ◽  
M. Yu. Trofimov ◽  
A. D. Zakharenko
Keyword(s):  
Perturbation Theory ◽  
Shallow Water ◽  
Shallow Water Acoustics

Comparison of Sound Propagation Characteristic between Deep and Shallow Water

2014 ◽  
Vol 577 ◽  
pp. 1198-1201
Author(s):  
Zhang Liang ◽  
Chun Xia Meng ◽  
Hai Tao Xiao
Keyword(s):  
Shallow Water ◽  
Deep Water ◽  
Sound Speed ◽  
Sound Propagation ◽  
Spherical Wave ◽  
Sound Field ◽  
Propagation Loss ◽  
Speed Profile ◽  
Sound Speed Profile ◽  
Propagation Law

The physical characteristics are compared between shallow and deep water, in physics and acoustics, respectively. There is a specific sound speed profile in deep water, which is different from which in shallow water, resulting in different sound propagation law between them. In this paper, the sound field distributions are simulated under respective typical sound speed profile. The color figures of sound intensity are obtained, in which the horizontal ordinate is distance, and the vertical ordinate is depth. Then we can get some important characteristics of sound propagation. The results show that the seabed boundary is an important influence on sound propagation in shallow water, and sound propagation loss in deep water convergent zone is visibly less than which in spherical wave spreading. We can realize the remote probing using the acoustic phenomenon.

A ray mode parabolic equation, and examples of its application in shallow water acoustics propagation problems

2015 ◽  
Author(s):  
Mikhail Yu. Trofimov ◽  
Sergey B. Kozitskiy ◽  
Alena D. Zakharenko ◽  
Pavel S. Petrov
Keyword(s):  
Parabolic Equation ◽  
Shallow Water ◽  
Shallow Water Acoustics
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