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

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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Calculations of Storm Surges, Typhoon Maemi

해일고 산정 수치모의 실험, 태풍 매미

  • Lee, Jong-Chan (Coastal Engineering Research Department, Korea Ocean Research and Development Institute) ;
  • Kwon, Jae-Il (Coastal Engineering Research Department, Korea Ocean Research and Development Institute) ;
  • Park, Kwang-Soon (Coastal Engineering Research Department, Korea Ocean Research and Development Institute) ;
  • Jun, Ki-Cheon (Coastal Engineering Research Department, Korea Ocean Research and Development Institute)
  • 이종찬 (한국해양연구원 연안개발연구본부) ;
  • 권재일 (한국해양연구원 연안개발연구본부) ;
  • 박광순 (한국해양연구원 연안개발연구본부) ;
  • 전기천 (한국해양연구원 연안개발연구본부)
  • Published : 2008.02.29
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Abstract

A multi-nesting grid storm surge model, Korea Ocean Research and Development Institute-Storm surge model, was calibrated to simulate storm surges. To check the performance of this storm surge model, a series of numerical experiments were explored including tidal calibration, the influence of the open boundary condition, the grid resolutions, and typhoon paths on the surge heights using the typhoon Maemi, which caused a severe coastal disasters in Sep. 2003. In this study the meteorological input data such as atmospheric pressure and wind fields were calculated using CE wind model. Total 11 tidal gauge station records with 1-minute interval data were compared with the model results and the storm surge heights were successfully simulated. The numerical experiments emphasized the importance of meteorological input and fine-mesh grid systems on the precise storm surge prediction. This storm surge model could be used as an operational storm surge prediction system after more intensive verification.

Multi-nesting grid system을 이용한 한국해양연구원의 해일모델을 해일고 산출에 사용하기 위해 검증하였다. 다양한 수치실험은 2003년 9월 내습한 태풍 매미를 기준으로 이루어졌다. 이 태풍해일모델의 성능을 알아보기 위해 조석검증을 비롯하여 개방경계조건, 격자 크기 그리고 태풍의 진로 등에 대한 일련의 수치실험이 실시되었다. 본 연구에서 기상입격자료인 해면기압장과 바람장은 CE wind 모델로 계산하였다. 총 11개 조위관측소의 1분 간격 조위자료와 모델 결과를 비교하였으며, 해일고를 성공적으로 재현하였다. 이러한 실험들은 정밀한 해일고 산출에 있어 기상자료의 중요성과 상세정밀격자의 필요성을 강조하기 위한 것이다. 이 태풍해일 모델은 보다 세밀한 검증과정을 거친다면 해일고 예측을 위해 상시 운용될 수 있다고 사료된다.

Keywords

References

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