수산해양기술연구 (Journal of the Korean Society of Fisheries and Ocean Technology)

  • 제58권2호
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  • Pages.159-174
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  • 2022
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  • 2671-9940(pISSN)
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  • 2671-9924(eISSN)
한국수산해양기술학회 (The Korean Society of Fisheries and Ocean Technology)
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수치실험을 통한 금오열도 해역의 해수유동 특성

Flow characteristics of Geumo Islands Sea area by numerical model experiments

  • 추효상 (전남대학교 해양융합과학과)
  • CHOO, Hyo-Sang (Dept. of Ocean Integrated Science, Chonnam National University)
  • 투고 : 2022.02.21
  • 심사 : 2022.04.12
  • 발행 : 2022.05.31
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초록

Flow prediction was carried out through observational survey and three dimensional multi-layered numerical diagnostic model experiment to clarify the time and spatial structure of tidal current and residual flow dominant in the sea exchange and material circulation of the waters around Geumo Islands in the southern waters of Korea. The horizontal variation of tidal current is so large that it causes asymmetric tidal mixing due to horizontal eddies and the topographical effect creating convergence and dispersion of flow direction and velocity. Due to strong tidal currents flowing northwest-southeast, counterclockwise and clockwise eddies are formed on the left and right sides of the south of Sori Island. These topographical eddies are created by horizontal turbulence and bottom friction causing nonlinear effects. Baroclinic density flows are less than 5 cm/s at coastal area in summer and the entire sea area in winter. The wind driven currents assuming summer and winter seasonal winds are also less than 5 cm/s and the current flow rate is high in winter. Density current in summer and wind driven current in winter have a relatively greater effect on the net residual flows (tidal residual current + density current + density driven current) around Geumo Islands Sea area.

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과제정보

이 논문은 2022년 해양수산부 재원으로 해양수산과학기술진흥원의 지원을 받아 수행된 연구임(ICT 기반 수산자원관리 연구센터).

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