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Updated: May 31, 2026

A Stable Phantom Material for Optical and Acoustic Imaging
Published on: June 16, 2023
Focused sound from three-dimensional sound propagation effects over a submarine canyon
Linus Y S Chiu1, Ying-Tsong Lin, Chi-Fang Chen
1Department of Engineering Science and Ocean Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617 Taiwan. f91525002@ntu.edu.tw
Abstract:
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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