• Title/Summary/Keyword: ultra high resolution shallow acoustic profiling

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Ultra High Resolution Shallow Acoustic Profiling using the Parametric Echo Sounder: Discrimination of Marine Contaminated Sediments and Burial Depth Inspection of the Submarine Cable (비선형 측심기를 이용한 초고해상 천부음향탐사: 오염퇴적층 구분과 해저케이블 매설 검측)

  • Jung, Seom-Kyu;Lee, Yong-Kuk;Kim, Seong-Ryul;Oh, Jae-Kyung
    • Journal of Advanced Marine Engineering and Technology
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    • v.34 no.8
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    • pp.1222-1229
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    • 2010
  • Compared to conventional high resolution acoustic profiling, ultra high resolution shallow acoustic profiling using parametric echo sounder is limited in penetration, yet it provides resolution suitable for detailed seabed investigation in the shallow waters. The parametric sub-bottom profiler system provides not only the exact determination of water depth, but also the detailed information about sediment layers and sub-bottom structures. Possible applications include dredging project, search of buried pipeline, ship wrecks, and other artificial objects through the detailed mapping of thickness and structure of the upper sedimentary layers. In this study, contaminated sediments were discriminated by the correlation of ultra high resolution profiles with geologic data. In addition, the burial depth of the submarine cable was measured by the interpretation of acoustic anomalies in the profiles.

Case Study of Ultra High Resolution Shallow Acoustic Profiling - Discrimination of the Marine Contaminated Sediment and Burial Depth Inspection of Submarine Cable (초고해상 천부음향탐사 사례 - 오염퇴적층 구분과 해저케이블 매설 검측)

  • Jung, Baek-Hoon;Lee, Yong-Kuk;Kim, Seong-Ryul;Shin, Dong-Hyeok;Jou, Hyeong-Tae
    • 한국지구물리탐사학회:학술대회논문집
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    • 2008.10a
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    • pp.79-84
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    • 2008
  • Compared to conventional high resolution acoustic profiling, ultra high resolution shallow acoustic profiling is limited in penetration, yet it provides resolution suitable for detailed seabed investigation in the shallow waters. Possible applications include search of buried pipeline, ship wrecks, and other artificial objects through the detailed mapping of thickness and structure of the upper sedimentary layers. In this study, contaminated sediments were discriminated by the correlation of ultra high resolution profiles with geologic data. In addition, the burial depth of submarine cable was measured by the interpretation of acoustic anomalies in the profiles.

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