Underwater sound channel in the northeastern East China Sea SCIE SCOPUS

Cited 19 time in WEB OF SCIENCE Cited 21 time in Scopus
Title
Underwater sound channel in the northeastern East China Sea
Author(s)
Song, Heechun; Cho, Chomgun; Hodgkiss, William; Nam, SungHyun; Kim, Sea-Moon; Kim, Byoung-Nam
KIOST Author(s)
Kim, Byoung Nam(김병남)
Publication Year
2018-01-01
Abstract
In May 2015 a shallow-water acoustic variability experiment (SAVEX15) was conducted in the northeastern East China Sea. Surprisingly, an Underwater sound channel that is typical for deep water was discovered in this shallow water waveguide (similar to 100 m deep) with the channel axis at around 40 m. For a broad-band source (0.5-2.0 kHz) deployed close to the channel axis, channel impulse responses observed by a vertical array exhibited a complex arrival structure with a large delay spread (e.g., 160 milliseconds). Most arrivals are found to be surface and bottom reflected, while a pair of high-intensity refracted arrivals are embedded in the early reflected arrivals. Broadband simulations based on a normal mode propagation model show good agreement with data.
ISSN
0029-8018
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1030
DOI
10.1016/j.oceaneng.2017.10.045
Bibliographic Citation
OCEAN ENGINEERING, v.147, pp.370 - 374, 2018
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Keywords
East China Sea; Underwater sound channel; Channel impulse response; SAVEX15
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Related Researcher
Research Interests

Underwater Acoustics,Bubble Acoustics,Marine Defense & Safety,수중음향,기포음향,해양방위·안전

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