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http://dx.doi.org/10.9765/KSCOE.2017.29.5.239

Development of Wave by Wave Analysis Program using MATLAB  

Choi, Hyukjin (Department of Civil and Environmental Engineering, Wonkwang University)
Jeong, Shin Taek (Department of Civil and Environmental Engineering, Wonkwang University)
Cho, Hong Yeon (Ocean Data Science Division, Korea Institute of Ocean Science & Technology)
Ko, Dong Hui (Coastal & Environmental Engineering Division, Korea Institute of Ocean Science & Technology)
Kang, Keum Seok (KEPCO Research Institute)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.29, no.5, 2017 , pp. 239-246 More about this Journal
Abstract
In case of observing only wave height and period in the field, various wave characteristics are mainly calculated by wave by wave analysis method. In this paper, an wave by wave analysis program using MATLAB language is developed. It is possible to perform a function such as 1) correction for mean water level, 2) calculation for zero crossing time, 3) calculation for individual wave height, 4) time interval by using zero upcrossing and downcrossing method. The applicability of the developed program to the data of 0.2 second interval observed by using the WaveGuide Radar installed on HeMOSU-1 was examined. Tidal level variation removal and zero crossing time estimation were determined by linear or quadratic interpolation. It was judged that the Goda method was appropriate for calculating individual wave height, and the method proposed in this study seems to be improved through subsequent research. Due to the fineness of the sample, it can be seen that characteristics of representative waves are different from the results calculated by zero upcrossing and downcrossing method.
Keywords
wave by wave analysis method; MATLAB; zero upcrossing method; zero downcrossing method; HeMOSU-1; representative waves;
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