Focused sound from three-dimensional sound propagation effects over a submarine canyon | Zendy

Linus Y. S. Chiu | Zendy; Ying-Tsong Lin | Zendy; Chi-Fang Chen | Zendy; Timothy F. Duda | Zendy; Brian R. Calder | Zendy

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Focused sound from three-dimensional sound propagation effects over a submarine canyon

Author(s) -

Linus Y. S. Chiu,

Ying-Tsong Lin,

Chi-Fang Chen,

Timothy F. Duda,

Brian R. Calder

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 - 10.1121/1.3579151

Subject(s) - canyon , bathymetry , submarine canyon , sound (geography) , geology , seafloor spreading , submarine , acoustics , sound propagation , noise (video) , ambient noise level , oceanography , seismology , geomorphology , computer science , physics , artificial intelligence , image (mathematics)

Ship noise data reveal an intensification of the near-surface sound field over a submarine canyon. Numerical modeling of sound propagation is used to study the effect. The noise data were collected during an ocean acoustic and physical oceanography experiment northeast of Taiwan in 2009. In situ measurements of water sound-speed profiles and a database of high-resolution bathymetry are used in the modeling study. The model results suggest that the intensification is caused by three-dimensional sound focusing by the concave canyon seafloor. Uncertainties in the model results from unsampled aspects of the environment are discussed.

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