우리나라 동해안 중부 해역에서 6년간 연속 관측된 파랑의 특성 = Characteristics of Waves Continuously Observed over Six Years at Offshore Central East Coast of Korea

다국어 초록 (Multilingual Abstract)

This study presents the results of analysis for the wave data that were consecutively collected from February 2013 to November 2018 at the location of 1.6 km offshore from Namhangjin beach. The water depth at the location is 30.5 m and waves were measured by AWAC (Acoustic Wave And Current meter). By using wave-by-wave analysis and spectral analysis, wave heights and periods were evaluated and then the relationships between the quantities obtained by the two methods were proposed based on linear regression analysis. In addition, monthly and yearly variations of the significant wave height and period, and the peak wave direction were analyzed. Moreover, the relationship between the significant wave height and period was newly suggested. Variability and probability distribution of the significant wave period with respect to the significant wave height were also examined.

국문 초록 (Abstract)

동해안 남항진 해변에서 1.6 km 떨어진 수심 30.5 m 해역에서 초음파식 파고·파향계를 이용하여 2013년 2 월부터 2018년 11월까지 연속 관측을 실시하여 취득된 파랑자료를 분석하였다. 파별분석법과 스펙트럼법에 의해 파 고와 주기를 분석하고 두 방법에 의해 산정되는 파라메터 사이의 관계식을 선형 회귀분석에 의해 도출하였다. 또한 유의파고, 유의파주기, 첨두파향의 월별 및 연별 변동성을 분석하였다. 이에 더하여 유의파고와 유의파주기의 상관관 계식을 새롭게 제시하고 유의파고에 대한 유의파주기의 변동성 및 확률분포 특성을 고찰하였다.

참고문헌 (Reference)

1 서경덕, "한국 연안 심해파의 통계적 특성" 한국해안,해양공학회 20 (20): 342-354, 2008

2 정원무, "최근 10년간 장기연속관측에 근거한 부산항 신항 인근 해역의 파랑특성" 한국해안,해양공학회 24 (24): 109-119, 2012

3 정원무, "전국파랑관측자료 제공시스템 WINK 구축" 한국해안,해양공학회 30 (30): 326-336, 2018

4 정원무, "장기 파랑관측자료 분석 및 천해파 수치실험에 의한 강릉 해역의 천해설계파" 한국해안,해양공학회 24 (24): 343-351, 2012

5 조홍연, "속초 연안의 파랑환경 변화양상 분석" 한국해안,해양공학회 24 (24): 120-127, 2012

6 Sturges, H.A., "The choice of a class interval" 21 (21): 65-66, 1926

7 Korea Agency for Infrastructure Technology Advancement, "The Development of Multi-functional Artificial Reef for Installing an Offshore" 528-, 2016

8 Choi, B.H., "Status of wave observations at Korean coastal waters" 93-96, 2009

9 Coastal Engineering Research Center, "Shore Protection Manual"

10 Goda, Y., "Revisiting Wilson’s formulas for simplified windwave prediction" 129 (129): 93-95, 2003

11 Korea Ocean Research and Development Institute, "Report on the Deep Sea Design Wave Estimation for Seas adjacent to Korea" 154-, 2005

12 Suh, K.D., "Reliability design of breakwater armor blocks considering wave direction in computation of wave transformation" 44 : 321-341, 2002

13 Goda, Y., "Random Seas and Maritime Structures, Advanced Series on Ocean Engineering, 15" World Scientific Publishing Co 2000

14 Hong, S.Y., "Calculation of expected sliding distance of breakwater caisson considering variability in wave direction" 46 : 119-140, 2004

15 Kwon, H.-D., "Analysis of statistical characteristics of deepwater wave period, direction, and spectrum shape around the Korean Peninsula" Seoul National Univ 2008