The optimum frequency for acoustic propagation in shallow water is controlled by a number of physical effects and environmental parameters. This article concentrates on the effect of a nonlinear frequency dependence of the sea‐bottom attenuation on the optimum frequency. Experimental data on low‐frequency acoustic propagation in shallow water are presented, for which, over the frequency range where the optimum frequency should occur, no apparent optimum frequency is observed. If there is an optimum frequency for these sea areas, it is much lower than predicted by existing theories. It is demonstrated that the nonoccurrence, or lowering, of the optimum frequency can be easily explained if the sea bottom is assumed to have a nonlinear frequency dependence. Excellent agreement between theory and experiment is achieved for a site in the Yellow Sea for three different seasons using values for sediment attenuation (with nonlinear frequency dependence) and sediment sound speed which were measured independently at the same site [J. X. Zhou, J. Acoust. Soc. Am. 78, 1003–1009 (1985)]. The sea‐bottom attenuation used for the calculations was proportional to frequency to about the 1.8 power.
Skip Nav Destination
Article navigation
July 1987
July 01 1987
Effect of frequency dependence of sea‐bottom attenuation on the optimum frequency for acoustic propagation in shallow water
Ji‐xun Zhou;
Ji‐xun Zhou
Institute of Acoustics, Academia Sinica, P. O. Box 2712, Beijing, People’s Republic of China
Search for other works by this author on:
Xue‐zhen Zhang;
Xue‐zhen Zhang
Institute of Acoustics, Academia Sinica, P. O. Box 2712, Beijing, People’s Republic of China
Search for other works by this author on:
Peter H. Rogers
Peter H. Rogers
The G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332
Search for other works by this author on:
J. Acoust. Soc. Am. 82, 287–292 (1987)
Article history
Received:
July 31 1986
Accepted:
March 31 1987
Citation
Ji‐xun Zhou, Xue‐zhen Zhang, Peter H. Rogers; Effect of frequency dependence of sea‐bottom attenuation on the optimum frequency for acoustic propagation in shallow water. J. Acoust. Soc. Am. 1 July 1987; 82 (1): 287–292. https://doi.org/10.1121/1.395564
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
All we know about anechoic chambers
Michael Vorländer
A survey of sound source localization with deep learning methods
Pierre-Amaury Grumiaux, Srđan Kitić, et al.
Performance study of ray-based ocean acoustic tomography methods for estimating submesoscale variability in the upper ocean
Etienne Ollivier, Richard X. Touret, et al.
Related Content
Geoacoustic parameters in a stratified sea bottom from shallow‐water acoustic propagation
J Acoust Soc Am (December 1987)
Behavior of aluminum shear modulus in solid-liquid mixed phase: Estimation with percolation theory
J. Appl. Phys. (May 2008)