Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Detection of Urchin Barren Using Airborne Hyperspectral Imagery and SAM Technique - Focusing on the West Sea Island Areas

항공 초분광 영상과 SAM 기법을 이용한 백화현상 탐지 -서해 도서 지역을 중심으로-

  • Yong-Suk Kim (Department of Landscape Architecture, Dong-A University)
  • 김용석 (동아대학교 디자인환경대학 조경학과)
  • Received : 2024.06.19
  • Accepted : 2024.07.16
  • Published : 2024.07.31
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Abstract

The coastal urchin barren phenomenon in our country began to spread and expand from the 1980s, centering on the southern coast and Jeju Island, and by the 1990s, it appeared along the east coast and nationwide. The urchin barren phenomenon is mainly conducted through field surveys by diving, but recently, various surveying techniques have been applied. In this study, a spectral library for terrestrial and marine areas was established for the identification of urchin barrens using airborne hyperspectral imagery, and the distribution area was analyzed through the SAM (spectral angle mapper) algorithm. An analysis of the urchin barren phenomenon in the five islands of the West Sea revealed that it occurrs in most areas, with the combined severity of the urchin barren phenomenon in Sapsido and Oeyeondo being approximately 19.9%. Hyperspectral imagery is expected to be highly useful not only for detecting the urchin barren phenomenon but also for managing and monitoring marine fishery resources through the classification of seaweeds.

Keywords

Acknowledgement

본 연구는 환경부의 재원으로 한국환경산업기술원의 녹색복원 특성화대학원 사업의 지원을 받아 수행되었습니다.

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