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Overview of the KIOST-HYU Joint Experiment for Acoustic Propagation in Shallow Water Geological Environment
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 Title & Authors
Overview of the KIOST-HYU Joint Experiment for Acoustic Propagation in Shallow Water Geological Environment
Cho, Sungho; Kang, Donhyug; Lee, Cheol-Ku; Jung, Seom-Kyu; Choi, Jee Woong; Oh, Suntaek;
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 Abstract
This paper presents an overview of the geological environment investigation and underwater acoustic measurements for the purpose of "Study on the Relationship between the Geological Environment and Acoustic Propagation in Shallow Water", which are jointly carried out by KIOST (Korea Institute of Ocean Science & Technology) and Hanyang University in the western shallow water off the Taean peninsula in the Yellow Sea in April-May 2013. The experimental site was made up of various sediment types and bedforms due to the strong tidal currents and coastal geomorphological characteristics. The geological characteristics of the study area were intensively investigated using multi-beam echo sounder, sub-bottom profiler, sparker system and grab sampler. Acoustic measurements with a wide range of research topics in a frequency range of 20~16,000 Hz: 1) low frequency sound propagation, 2) mid-frequency bottom loss, 3) spatial coherence analysis of ambient noise, and 4) mid- frequency bottom backscattering were performed using low- and mid-frequency sound sources and vertical line array. This paper summarizes the topics that motivated the experiment, methodologies of the acoustic measurements, and acoustic data analysis based on the measured geological characteristics, and describes summary results of the geological, meteorological, and oceanographic conditions found during the experiments.
 Keywords
Shallow water acoustics;Geological environmental information;Acoustic propagation;Ambient noise;Reverberation;
 Language
Korean
 Cited by
1.
Measurements of Monostatic Bottom Backscattering Strengths in Shallow Water of the Yellow Sea, The Journal of the Acoustical Society of Korea, 2015, 34, 6, 444  crossref(new windwow)
2.
Measurements of Mid-frequency Bottom Loss in Shallow Water of the Yellow Sea, The Journal of the Acoustical Society of Korea, 2015, 34, 6, 423  crossref(new windwow)
3.
Spatial Coherence Analysis of Underwater Ambient Noise Measured at the Yellow Sea, The Journal of the Acoustical Society of Korea, 2015, 34, 6, 432  crossref(new windwow)
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