Overview of deep water acoustics

Li, Zhenglin; Yu, Yanxin

doi:10.1360/tb-2021-0643

Cited by 2 publications

(1 citation statement)

References 18 publications

(18 reference statements)

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“…Acoustic modeling and applications are important bases for acoustic performance assessment and target information perception. In the engineering practice, ocean acoustic propagation models, such as ray model [2],normal modes model [3],parabolic equation model [4], discretizes the ocean threedimensional space into N×2D mode (where N is the number of spatial azimuths), ocean acoustic application focuses on solving the spatial distribution of acoustic field energy in two-dimensional space (2D) of horizontal distance-depth. According to analysis above, the spatially discrete coordinate mismatch between ocean acoustic applications and ocean models restricts the effective transfer of seawater temperature and salt depth data.…”

Section: Introductionmentioning

confidence: 99%

A study of range dependent acoustical field based on the FVCOM model: A Case of typhoon NANMADOL

Wang,

Han,

Shi

et al. 2024

J. Phys.: Conf. Ser.

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This study simulated the acoustical field in the western North Pacific (WNP) during typhoon NANMADOL, based on the FVCOM model and Range dependent Acoustic Model RAM. We implements a new approach, which helps to accurately characterize the energy distribution of acoustical field obtained by considering the range dependent ocean dynamical environment elements. The results show that, the sound speed profile in the upper-layer ocean of the sea water decreases to a certain extent on the day after the typhoon’s arrival, while the maximum decrease in the sound speed after the typhoon’s transit occurs 1∼2 days. The maximum decrease in the seawater sound speed can be up to 2-3 m/s 2 days after the typhoon’s transit. The passage of the typhoon mainly affects the far-field acoustical energy distribution when the sound source is located near the upper-layer ocean.

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Section: Introductionmentioning

confidence: 99%