Run-up heights of solitary waves on a circular island with asymmetric crest lengths

He Rin Cho; Yong-Sik Cho

doi:10.3741/JKWRA.2017.50.9.647

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2017 Vol.50, Issue 9 Preview Page

Run-up heights of solitary waves on a circular island with asymmetric crest lengths 비대칭 파봉선 길이에 따른 원형섬에서 고립파의 처오름높이

30 September 2017. pp. 647-652

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Abstract

Many islands are scattered around the southern area of the Korean Peninsula and they may be very vulnerable to unexpected tsunami attacks. During the East Japan Tsunami Event occurred on March 11, 2011, many islands located at the southern area were affected by tsunamis. In this study, maximum run-up heights of solitary waves on a circular island with asymmetrical crest lengths investigated by using a numerical model based on the shallow-water theory. The obtained results could be used by local authorities to establish a defense plan against unexpected tsunami invasion.

Keywords

Solitary wave

Run-up height

Shallow-water equations

Coastal inundation

우리나라 해안지역에는 많은 섬들이 위치하고 있어 대규모 지진해일이 발생하였을 때 섬과 지진해일의 상호작용으로 예기치 않은 지진해일 피해 가 우려된다. 2011년 발생한 동일본 지진해일의 경우 제주도를 비롯한 남해안 섬들에 영향을 미쳤다. 본 연구에서는 천수이론에 근거한 수치모형 을 이용하여 섬 중앙에 대하여 비대칭으로 입사하는 고립파의 처오름높이에 관하여 연구한다. 연구에서 얻은 결과는 지진해일의 급습에 대비한 방 재대책을 수립하는데 사용될 수 있을 것이다.

키워드

고립파

처오름높이

천수방정식

해안범람

References

Cho, Y.-S. (1995). Numerical simulations of tsunami propagation and run-up. Ph. D. Thesis, Cornell University, USA.

Cho, Y.-S., and Liu, P.L.-F. (1999). “Crest length effects in nearshore tsunami run-up around islands.” Journal of Geophysical Research, Vol. 104, pp. 7907-7913.

Choi, B.-H., Cho, Y.-S., and Yoon, S. B. (2016). “Tsunami research in Korea.” Natural Hazards, Vol. 84, No. 2, pp. 437-454.

Goring, D. G. (1978). Tsunamis-the propagation and long waves onto a shelf. Ph. D. Thesis, California Institute of Technology, USA.

Hankookilbo (1996). Article 14845, February 18 1996.

Kajiura, K. (1963). “The leading wave of a tsunami.” Bulletin of the Earthquake Research Institute, Vol. 41, pp. 535-571.

KBS (2011). KBS 1 Television News June 2^nd 2011 at 09:00 PM.

Liu, P.L.-F., Cho, Y.-S., Briggs, M. J., Synolakis, C. E., and Kanoglu, U. (1995). “Run-up of solitary wave on a circular island.” Journal of Fluid Mechanics, Vol. 302, pp. 259-285.

Information

Publisher :KOREA WATER RESOURECES ASSOCIATION
Publisher(Ko) :한국수자원학회
Journal Title :Journal of Korea Water Resources Association
Journal Title(Ko) :한국수자원학회 논문집
Volume : 50
No :9
Pages :647-652
Received Date : 2017-08-16
Revised Date : 2017-08-23
Accepted Date : 2017-08-23
DOI :https://doi.org/10.3741/JKWRA.2017.50.9.647

Journal of Korea Water Resources Association ISSN:2799-8746(Print) 2799-8754(Online) 한국수자원학회 논문집

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