Browse > Article
http://dx.doi.org/10.5574/KSOE.2012.26.2.008

Study on Freak Wave Characteristics and Approximation of Wave Spectrum in Uljin Sea Area  

Ryu, Hwang-Jin (Korea Ocean Engineering & Consultants CO., LTD.)
Hong, Sa-Young (Marine Structure & Plant Research Department, MOERI/KORDI)
Publication Information
Journal of Ocean Engineering and Technology / v.26, no.2, 2012 , pp. 8-13 More about this Journal
Abstract
This paper investigates the statistical properties of waves in the sea area of Uljin, which is located in the East Sea area of Korea. The wave data were measured using AWAC (Acoustic Wave and Current Meter), which was installed at a 16-m water depth from November 2010 to March 2011. The wave data acquisition rate, Hmax, monthly mean Hs, Tz, Tp, and wave direction are summarized. The distributions of Hs and Tz were analyzed using the Hs-Tz scatter diagrams. The measurement wave data were analyzed to investigate freak wave characteristics. By comparing the wave spectrum using the measurement wave data with the wave spectrum obtained by varying the JONSWAP wave spectrum, it was possible to approximate the wave spectrum shape at the Uljin Sea area.
Keywords
Hs-Tz Scatter Diagram; Freak wave; Skewness; Atiltness; Kurtosis; Spectrum bandwidth parameter;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김도영 (2006). "해양파의 개별파고 분포에 대하여", 한국해양공학회 2006년도 추계학술대회 논문집, pp 367-372.
2 김도영 (2010). "비선형 해양파의 통계적 특성에 대한 해석", 한국해양환경공학회지, 제13권, 제2호, pp 112-120.
3 류황진 (2006). "수치파랑모델을 이용한 파력발전 적지 선정에 대한 연구", 홍익대학교 조선해양공과 박사학위 논문, pp 1-8.
4 신승호 (2001). "해안구조물 배후의 해빈변형 기구 및 모델링에 관한 연구", 큐슈대학학위논문", p 187.
5 신승호, 홍기용, 문재승 (2007). "Freak wave 특성 파악을 위한 파랑관측 지료의 분석", 한국항해항만학회지, 제31권, 제6호, pp 471-478.
6 홍기용 등 (2005). "파력에너지 실용화 기술 개발", 해양수산부, pp 181-223
7 McCowan, J. (1894). "On the Highest Wave of Permanent Type", Pilos. Mag. J. Sci., Vol 38, pp 351-358.   DOI
8 Mori, N. (2004). Occurrence probability of a freak wave in a nonlinear wave field, Ocean Engineering 31, pp 165-175.   DOI   ScienceOn
9 Mori, N., Paul, C.L. and Yasuda, T. (2002). Analysis of freakwave measurements in the Sea of Japan, Ocean Engineering 29, pp 1399-1414.   DOI   ScienceOn
10 Stansell, P. (2005). "Distributions of Extreme Wave, Crest and Trough Heights Measured in the North Sea", Ocean Engineering, 32, pp 1015-1036.   DOI   ScienceOn
11 Weggel, J.R. (1972). "Maximum Breaker Height", J. Waterways, Harbors Coastal Eng. Div., ASCE, Vol 98. No 4, pp 529-548.