한국항해항만학회:학술대회논문집 (Proceedings of the Korean Institute of Navigation and Port Research Conference)
- 한국항해항만학회 2005년도 춘계학술대회 논문집
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- Pages.245-251
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- 2005
남서 해역 심해 설계 파고 및 풍속의 극치분석
The Extreme Value Analysis of Deepwater Design Wave Height and Wind Velocity off the Southwest Coast
- 김강민 (세일종합기술공사 항만 및 해안 개발 기술연구소) ;
- 이중우 (한국해양대학교 건설환경공학부) ;
- 이훈 (한국해양대학교 토목환경공학과 대학원) ;
- 양상용 (한국해양대학교 건설환경공학부) ;
- 정영환 (한국해양대학교 토목환경공학과 대학원)
- Kim, Kamg-Min (Seil Engineering Co., Ltd. Port and Coastal Development Institute) ;
- Lee, Joong-Woo (Division of Civil and Environmental Engineering, Korea Maritime University) ;
- Lee, Hun (Department of Civil and Environmental Engineering, Graduate school of Korea Maritime University) ;
- Yang, Sang-Yong (Division of Civil and Environmental Engineering, Korea Maritime University) ;
- Jeong, Young-Hwan (Department of Civil and Environmental Engineering, Graduate school of Korea Maritime University)
- 발행 : 2005.04.21
초록
연안 및 항만시설물의 설계에서 심해 설계파 및 풍속은 매우 중요한 설계 파라메타이다. 특히, 최근 부각되고 있는 방재공학 측면에서 이러한 정보에 대한 분석단계는 필수적이라 할 수 있다. 본 연구에서는 완도관측소의 기상연보에서 제시한 1978년부터 2003년까지의 풍속자료와 한국해양연구원 파랑정보시스템에서 제공하는 16방향별 최대 유의파 산출자료를 이용하여 극치분석을 수행하였다. 특성분석에 사용된 극치분포함수는 Weibull, Gumbel, Log-Pearson Type-III, Normal, Lognormal, Gamma 분포이며, 각 분포함수의 매개변수는 모멘트법, 최우도법 그리고 확률 가중 모멘트법으로 추정하였다. 또한, 극치분포함수의 적함성은 5
When we design coastal and harbol facilities deepwater design wave and wind speed are the important design parameters. Especially, the analysis of these informations is a vital step for the point of disaster prevention. In this study, we made and an extreme value analysis using a series of deep water significant wave data arranged in the 16 direction and supplied by KORDI real-time wave information system ,and the wind data gained from Wan-Do whether Station 1978-2003. The probability distributions considered in this characteristic analysis were the Weibull, the Gumbel, the Log-Pearson Type III, the Normal, the Lognormal, and the Gamma distribution. The parameter for each distribution was estimated by three methods, i.e. the method of moments, the maximum likelihood, and the method of probability weight moments. Furthermore, probability distributions for the extreme data had been selected by using Chi-square and Kolmogorov-Smirnov test within significant level of 5%, i,e. 95% reliance level. From this study we found that Gumbel distribution is the most proper model for the deep water design wave height off the southwest coast of Korea. However the result shows that the proper distribution made for the selected site is varied in each extreme data set.
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