Analytical study of the horizontal ducting of sound by an oceanic front over a slope | Zendy

Ying-Tsong Lin | Zendy; James F. Lynch | Zendy

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Analytical study of the horizontal ducting of sound by an oceanic front over a slope

Author(s) -

Ying-Tsong Lin,

James F. Lynch

Publication year - 2011

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.3662030

Subject(s) - atmospheric duct , geology , refraction , wedge (geometry) , front (military) , speed of sound , sound (geography) , reflection (computer programming) , sound speed gradient , submarine pipeline , acoustics , meteorology , optics , oceanography , sound intensity , physics , computer science , atmosphere (unit) , programming language

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.

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