Journal of Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회논문집)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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Long-term Wave Monitoring and Analysis Off the Coast of Sokcho

속초 연안의 장기 파랑관측 및 분석

  • Jeong, Weon Mu (Coastal & Environmental Engineering Division, Korea Institute of Ocean Science & Technology) ;
  • Ryu, Kyung-Ho (Coastal & Environmental Engineering Division, Korea Institute of Ocean Science & Technology) ;
  • Cho, Hongyeon (Coastal & Environmental Engineering Division, Korea Institute of Ocean Science & Technology)
  • 정원무 (한국해양과학기술원 연안공학연구본부) ;
  • 류경호 (한국해양과학기술원 연안공학연구본부) ;
  • 조홍연 (한국해양과학기술원 연안공학연구본부)
  • Received : 2015.07.20
  • Accepted : 2015.08.10
  • Published : 2015.08.31
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Abstract

Wave data acquired over eleven years near Sokcho Harbor located in the central area of the east coast were analyzed using spectral method and wave-by-wave analysis method and its major wave characteristics were examined. Significant wave heights were found to be high in winter and low in summer, and peak periods were also found to be long in winter and short in summer. The maximum significant wave height observed was 8.95 m caused by the East Sea twister. The distributional pattern of the significant wave heights and peak periods were both fitted better by Kernel distribution function than by Generalized Gamma distribution function and Generalized Extreme Value distribution function. The wave data were compiled to subdivide the wave height into intervals for each month, and the cumulative occurrence rates of wave heights were calculated to be utilized for the design and construction works in nearby construction works.

동해 중부에 위치한 속초항 연안에서 약 11년간 취득한 파랑자료를 스펙트럼법과 파별분석법을 사용하여 분석하고 대표적인 파랑 특성을 검토하였다. 유의파고는 동계에 크고 하계에 작으며, 첨두주기도 동계에 길고 하계에 짧은 특성을 나타내었다. 관측된 최대 유의파고는 8.95 m 였으며 동해선풍에 의하여 발생되었다. 유의파고와 첨두주기 모두 그 분포 형태를 Generalized Gamma 및 Generalized Extreme Value 분포함수보다는 Kernel 분포함수가 보다 잘 재현하였다. 한편, 인근 해역에서의 설계 및 시공에 도움을 줄 수 있도록 파고 자료를 월별 및 파고 구간별로 세분하고 누적출현율을 제시하였다.

Keywords

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