Journal of Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회논문집)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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Numerical Analyses of 2011 East Japan Tsunami Propagation towards Korean Peninsula

2011년 동일본 지진해일의 한반도 전파 수치해석

  • Bae, Jae-Seok (Dept. of Civil & Env. Engrg, Graduate School, Hanyang University) ;
  • Cho, Young-Joon (Dept. of Civil & Env. Engrg, Graduate School, Hanyang University) ;
  • Kwon, Seok-Jae (Korea Hydrography and Oceanography Administration) ;
  • Yoon, Sung-Bum (Dept. of Civil & Env. Engrg., ERICA Campus, Hanyang University)
  • 배재석 (한양대학교 대학원 건설환경공학과) ;
  • 조영준 (한양대학교 대학원 건설환경공학과) ;
  • 권석재 (국립해양조사원) ;
  • 윤성범 (한양대학교 건설환경공학과)
  • Received : 2012.02.14
  • Accepted : 2012.02.23
  • Published : 2012.02.29
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Abstract

The effect of bathymetry near the south sea area of Korea on the propagation of 2011 East Japan Tsunami is analyzed based on the numerical simulation using the finite difference dispersion-correction model. It is found that the bathymetry from the source to Korean Peninsula, such as Nankai Trough, Ryukyu Islands and the topographical lens in the East China Sea, plays an important role to reduce the tsunami height along the south coast of Korea. The mechanism involved in the transformation of tsunamis over those topographies is discussed.

본 연구에서는 한국 남쪽 해역의 해저지형이 2011년 동일본 지진해일의 우리나라 남해안으로의 전파에 미치는 영향을 분산보정 유한차분 모형을 이용한 수치해석을 통해 분석하였다. 본 연구를 통해 일본 남해 해구, 유구 열도 및 동중국해의 볼록지형 등 파원역으로부터 한반도에 이르는 해저지형이 한반도 남해안을 따른 지진 해일고저감에 중요한 역할을 하고 있음을 알 수 있었다. 그러한 해저지형에서 지진해일의 변형에 관련된 메카니즘에 대해 자세히 기술하였다.

Keywords

References

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