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01764nam a2200337Ia 4500 |
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10.1121-1.5129554 |
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220511s2019 CNT 000 0 und d |
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|a 00014966 (ISSN)
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|a Three-dimensional acoustic propagation effects induced by the sea ice canopy
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| 260 |
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|b Acoustical Society of America
|c 2019
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| 856 |
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|z View Fulltext in Publisher
|u https://doi.org/10.1121/1.5129554
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|a This work examines three-dimensional (3D) propagation caused by interaction with the sea ice canopy using an approximate normal mode/parabolic equation hybrid model. The effects of horizontal refraction are assessed through comparison of two-dimensional (2D) and 3D solutions for the modal amplitudes and depth-averaged transmission loss. The following 3D effects are described: Diffraction of sound into shadow zones behind ice keels, horizontal defocusing of sound behind ice keels, and horizontal focusing of sound that has propagated between ice keels. A statistical analysis shows that the 3D solution is characterized by 20% greater variance in the depth-averaged transmission loss than the 2D solution. © 2019 Acoustical Society of America.
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|a 3D solutions
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|a Acoustic propagation
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|a article
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|a canopy
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|a Computerized tomography
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|a diffraction
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|a Diffraction of sounds
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|a Horizontal refraction
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|a Naval architecture
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|a Normal modes
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|a sea ice
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|a Sea ice
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|a sound
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|a Threedimensional (3-d)
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|a Transmission loss
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|a Two Dimensional (2 D)
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|a Wave transmission
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|a Ballard, M.S.
|e author
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| 773 |
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|t Journal of the Acoustical Society of America
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