Analytical study of the horizontal ducting of sound by an oceanic front over a slope
Citable URI
http://hdl.handle.net/1912/5007As published
http://dx.doi.org/10.1121/1.3662030DOI
10.1121/1.3662030Keyword
Acoustic wave propagation; Acoustic wave reflection; Acoustic wave refraction; Underwater soundAbstract
The horizontal ducting of sound by an oceanic temperature front over a sloping bottom is studied with an idealized wedge model consisting of a lateral interface across the slope. The water outside the frontal interface has higher temperature, hence faster sound speed, and it will produce inshore reflection/refraction of the sound. Combining the offshore refraction caused by the sloping bottom, propagating sound can be ducted along the front. An analytical solution to the sound pressure field in the idealized model is derived, and an example is presented to demonstrate and discuss the ducting effect.
Description
Author Posting. © Acoustical Society of America, 2011. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution. The definitive version was published in Journal of the Acoustical Society of America 131 (2012): EL1-EL7, doi:10.1121/1.3662030.
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