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The seamount as a noise barrier

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Abstract
When the path from a localized noise source is intercepted by a seamount the shielded noise consists of a diffracted component and, if the seamount is close to a sufficiently smooth ocean surface , a multiply-reflected component as well. The magnitude and frequency filter i ng of the blockage caused by the seamount is here determined by using the impulse solution of diffraction by a rigid wedge as a module for the computer calculation of multiple diffraction at gross changes of slope along t he seamount and at its crest line. These computer calculations are validated by comparison with laboratory measurements using a scale model of DICKENS Seamount which has previously been shown to be an effective technique for the calculation of topographical diffraction at sea.

URI
http://hdl.handle.net/20.500.12489/97

Report Number
CP-32/2

Source
In: Underwater Ambient Noise (SACLANTCEN Conference Proceedings CP-32), Vol. 2, Part 2, 1982, pp. 24-1 - 24-11.

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Date
1982/06

Author(s)
Medwin, Herman
; 
Childs, Emily
; 
Jordan, Edgar A.

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CP-32_Vol2_Part2_Medwin_SeamountNoiseBarrier.pdf (3.730Mb)

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