Browse > Article

Analysis on Statistical Characteristic Changes due to the Analysis Periods of Non-Tidal Components Data in the East Coast of Korea  

Cho, Hong-Yeon (Coastal Development Research Department, KORDI)
Jeong, Shin-Taek (School of Civil, Environmental & Urban Eng., Wonkwang Univ.)
Cho, Beom-Jun (Coastal Development Research Department, KORDI)
Yun, Jong-Tae (Department of Civil Engineering, Kyungsung University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.19, no.2, 2007 , pp. 151-161 More about this Journal
Abstract
Statistical characteristic analysis was carried out using the non-tidal components computed by the harmonic analysis of the tidal elevation data in East coast. The tide gauging stations included in this study are the Sokcho, Mukho, Hupo, Pohang, Ulsan and Ulreungdo stations. In this study, the variance and skewness coefficient (SC) information changes, i.e., the max. value, min. value, mean and standard deviation of the variance and SC, are compared and analysed in detail by the various analysis periods increased from one year to the maximum available period. Based on the result of the statistical information (SI) range analysis, the minimum analysis period required in order to satisfy the confidence interval of the ${\pm}5%$ range of the variance and the ${\pm}0.1$ range of the SC is suggested as the 12 years, except the Ulreungdo stations. The auto-correlation and spectral density change patterns show the very similar shapes in every stations even though the absolute values are a little bit different each other.
Keywords
non-tidal components; variance; skewness coefficient; analysis periods; auto-correlation function; spectrum;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 조홍연, 정신택, 오영민 (2004). 조위자료의 확률밀도함수 추정, 한국해안해양공학회지, 16(3), 152-161
2 조홍연, 정신택, 윤종태, 김창일 (2006). 한반도 연안 비조석 성분자료의 통계적 특성, 한국해안해양공학회지, 18(2), 112-123   과학기술학회마을
3 Bazaraa, M.S., Sherail, H.D. and Shetty, C.M. (1993). Nonlinear Programming : Theory and Algorithms, Second Edition, John-Wiley & Sons
4 Kawai, H., Takayama, T., Suzuki, Y. and Hiraishi, T. (1997). Failure probability of breakwater caisson for tidal level variation, Report of the Port and Harbor Research Institute, Vol.36, No.4, pp.3-41 (in Japanese)
5 Goda, Y. and Takagi, H. (2000). A reliability design method of caisson breakwaters with optimal wave heights, Coastal Engineering Journal, Vol.42, No.4, pp.357-387
6 星谷 勝, 石井 淸 (1986). 構造物の 信賴性 設計法, 鹿島出版會
7 Boon, J.D. (2004). Secrets of the Tide, Tide and Tidal Current Analysis and Applications, Storm Surges and Sea Level Trends, Horwood Publishing
8 Kawai, H., Fujisaku, H. and Suzuki, Y. (1996). Occurrence probability of tidal level and its effect on stability of breakwater, Proc. of Civil Engineering in the Ocean, JSCE, Vol.12, pp.261-266 (in Japanese)
9 Pugh, D.T. (2004). Changing Sea Levels, Effects of Tides, Weather and Climate, Cambridge University Press
10 Haldar, A. and Mahadevan, S. (2000). Probability, Reliability and Statistical Methods in Engineering Design, John-Wiley & Sons
11 정신택, 조홍연, 정원무, 양정석 (2005). 조화상수를 이용한 조위 발생확률분포 분석, 대한토목학회논문집, 25(1B), 51-57
12 박성현, 1986. 회귀분석, 대영사
13 Pugh, D.T. (1987). Tides, Surges and Mean Sea-Level, A Handbook of Engineers and Scientists, John-Wiley & Sons
14 Goda, Y. (2000). Random Seas and Design of Maritime Structures, Advanced Series on Ocean Engineering, Vol. 15, World Scientific
15 Wanielista, M. (1990). Hydrology and Water Quantity Control, Chap. 9, John Wiley & Sons
16 국립해양조사원 Homepage http://www.nori.go.kr/kr/ - 조석자료제공시스템 http://oceandata.nori.go.kr, 1시간 자료 및 조석 조화상수 및 비조화상수