Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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Efficient Searching for Shipwreck Using an Integrated Geophysical Survey Techniques in the East Sea of Korea

동해에서 지구 물리 이종방법간의 결합시스템을 활용한 침선 수색의 효용성 연구

  • Lee-Sun, Yoo (Marine Security and Safety Research Center, Marine Domain Management Research Division, Korea Institute of Ocean Science & Technology) ;
  • Nam Do, Jang (Marine Security and Safety Research Center, Marine Domain Management Research Division, Korea Institute of Ocean Science & Technology) ;
  • Seom-Kyu, Jung (Marine Security and Safety Research Center, Marine Domain Management Research Division, Korea Institute of Ocean Science & Technology) ;
  • Seunghun, Lee (Marine Security and Safety Research Center, Marine Domain Management Research Division, Korea Institute of Ocean Science & Technology) ;
  • Cheolku, Lee (Marine Security and Safety Research Center, Marine Domain Management Research Division, Korea Institute of Ocean Science & Technology) ;
  • Sunhyo, Kim (Marine Security and Safety Research Center, Marine Domain Management Research Division, Korea Institute of Ocean Science & Technology) ;
  • Jin Hyung, Cho (Marine Security and Safety Research Center, Marine Domain Management Research Division, Korea Institute of Ocean Science & Technology)
  • 유이선 (한국해양과학기술원 해양영토연구본부 해양방위.안전연구센터) ;
  • 장남도 (한국해양과학기술원 해양영토연구본부 해양방위.안전연구센터) ;
  • 정섬규 (한국해양과학기술원 해양영토연구본부 해양방위.안전연구센터) ;
  • 이승훈 (한국해양과학기술원 해양영토연구본부 해양방위.안전연구센터) ;
  • 이철구 (한국해양과학기술원 해양영토연구본부 해양방위.안전연구센터) ;
  • 김선효 (한국해양과학기술원 해양영토연구본부 해양방위.안전연구센터) ;
  • 조진형 (한국해양과학기술원 해양영토연구본부 해양방위.안전연구센터)
  • Received : 2022.08.11
  • Accepted : 2022.10.25
  • Published : 2022.12.30
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Abstract

When the 60-ton-class patrol boat '72' of the Korea Coast Guard (KCG) was on duty and she accidentally collided with another patrol boat ('207', 200-ton-class) and sank. A month-long search found a small amount of lost items, but neither the crew nor the ship was found. For the first time in 39 years since the accident, the Korea Institute of Ocean Science and Technology (KIOST) searched the boat 72 using the latest integrated geophysical techniques. A number of sonar images presumed to be of a sunken ship was acquired using a combined system of side scan sonar and marine magnetometer, operated at an altitude of approximately 30 m from the seabed. At the same time, a strong magnetic anomaly (100 nT) was detected in one place, indicating the presence of an iron ship. A video survey using a remotely operated underwater vehicle (ROV) confirmed the presence of a shielding part of a personal firearm at the stern of the sunken vessel. Based on these comprehensive data, the sunken vessel discovered in this exploration was assumed to be '72'. This result is meaningful in terms of future ocean exploration and underwater archaeology, as the integrated system of various geophysical methods is an efficient means of identifying objects present in the water.

Keywords

Acknowledgement

본 논문은 2022년 한국해양과학기술원의 지원을 받아 수행된 연구입니다(과제명 : 해양방위 및 안전기술 개발 / 무인체 기반의 해양방위 지원용 수중 강자성 물체 탐지 융합 연구, PEA0041 / PEA0057).

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