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Parameter Estimation and Analysis of Deepwater Design Wave in Marginal Seas around Korea  

Kim, Jeong-Dae (School of Civil, Environmental & Urban Engineering, Wonkwang University)
Jeong, Shin-Taek (School of Civil, Environmental & Urban Engineering, Wonkwang University)
Cho, Hong-Yeon (Coastal & Harbour Engineering Research Division, Korea Ocean R&D Institute)
Oh, Nam-Sun (Ocean Civil Engineering, Mokpo National Maritime University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.19, no.4, 2007 , pp. 313-319 More about this Journal
Abstract
Long term wave climate of both extreme and operational wave height is essential for planning and designing coastal structures. Since the availability of the field wave data for the waters around Korean peninsula is limited to provide a reliable wave statistics, the wave climate information has been generated by means of long-term wave hindcasting using available meteorological data. In this paper, a set of deep water wave data obtained from KORDI(2003) were analyzed for extreme wave heights. These wave data at 67 stations off the Korean coast from 1979 to 1998 were arranged in the 16 directions. The probability distributions considered in this research were the FT-I and Weibull distribution. For each of these distributions, the method proposed by Goda(2004) was applied to estimate the parameters. For judgment of best fitting, MIR criterion proposed by Goda and Gobune(1990) was used. FT-I distribution which best fits to the 886 data, while Weibull(k=0.75) 81 data, Weibull(k=1.00) 105 data.
Keywords
hindcasting; deep water wave data; extreme wave heights; FT-I distribution; Weibull distribution; MIR;
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