Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
권호 표지
DOI QR코드

DOI QR Code

Storm Surge Vulnerability Assessment due to Typhoon Attack on Coastal area in Korea

태풍 내습으로 인한 연안역 해일 취약성 평가

  • Kang, Tae-Soon (Dept. of Coastal Management, GeoSystem Research Corp.) ;
  • Oh, Hyeong-Min (Dept. of Coastal Management, GeoSystem Research Corp.) ;
  • Lee, Hae-Mi (Future Environmental Strategy Research Group, Korea Environment Institute) ;
  • Eum, Ho-Sik (Dept. of Coastal Management, GeoSystem Research Corp.)
  • 강태순 ((주)지오시스템리서치 연안관리부) ;
  • 오형민 ((주)지오시스템리서치 연안관리부) ;
  • 이해미 (한국환경정책 평가연구원 미래환경전략연구그룹) ;
  • 엄호식 ((주)지오시스템리서치 연안관리부)
  • Received : 2015.09.18
  • Accepted : 2015.10.27
  • Published : 2015.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, we have estimated the storm surge heights using numerical modeling on coastal area, and then evaluated the vulnerability index by applying the vulnerability assessment techniques. Surge modelling for 27 typhoons affected from 2000 to 2014 were simulated by applying the ADCIRC model. The results of validation and verification was in significant agreement as compared with observations for the top 6 ranking typhoons affected. As results, the storm surge heights in Jinhae Bay, Sacheon Bay, Gwangyang Bay, Cheonsu Bay and Gyeonggi Bay were higher than other inner coastal areas, then storm surge vulnerability assessment was performed using a standardization, normalization and gradation of storm surge heights. According to results of storm surge vulnerability assessment, index of Jinhae Bay, Sacheon Bay, Gwangyang Bay etc. are estimated to be vulnerable(4~5) because of the characteristics of storm surge such as inner bay are vulnerable compared with exposed to the open sea areas. However, index in the inner bay of western Jeonnam are not vulnerable(1~3) relatively. It may not appear the typhoons affected significantly for the past 15 years. So, the long-term vulnerability assessment with the sensitivity of geomorphology are necessary to reduce the uncertainty.

본 연구에서는 해일예측모델링을 통하여 연안역의 해일고를 산정하고, 취약성평가 기법을 적용하여 취약등급을 평가하였다. 해일예측모델링은 ADCIRC 모형을 적용하여 2000년~2014년까지의 27개 태풍을 모의하였으며, 상위 영향 6개 태풍에 대하여 검증하였다. 계산결과는 관측결과와 유의미한 검증결과를 보였다. 진해만, 사천만, 광양만, 천수만 및 경기만 등 주요 내만 연안역에서 해일고가 높게 나타났으며, 산출된 해일고 자료를 이용하여 표준화, 정규화 및 등급화 과정을 거쳐 해일 취약성 평가를 수행하였다. 평가결과, 진해만, 사천만, 광양만 등에서 취약지수가 4~5등급을 보였으며, 이는 해일의 특성상 영향을 직접 받는 내만역이 취약함을 의미한다. 반면 전남 서부 내만의 취약지수(1~3등급)는 상대적으로 양호하게 나타났으며, 이는 지난 15년간 이 지역을 통과한 태풍이 크게 영향을 미치지 않았기 때문인 것으로 사료된다. 따라서, 이러한 상대적 불확실성을 보완하기 위해서는 지형적 민감도를 고려한 보다 장기간의 영향누적을 통한 취약성 평가가 필요하다.

Keywords

References

  1. Cha, E. J., H. S. Hwang, K. J. Yang, S. H. Won, S. W. Ko, D. H. Kim and H. J. Kwon(2009), Characteristics of Tropical Cyclones over the Western North Pacific in 2008, Atmosphere, Korean Journal of the Atmospheric Sciences, Vol. 19, No. 2, pp. 183-198.
  2. Chippada, S., C. N. Dawson and M. F. Wheeler(1996), Parallel computing for finite element models on surface water flows. Computational Methods in Water Resources XI, Computational Mechanics Publications, Southampton, U.K., pp. 63-70.
  3. Choi, E. S. and I. J. Moon(2008), The Variation of Extreme Values in the Precipitation and Wind Speed during 56 Years in Korea, Atmosphere, Korean Journal of the Atmospheric Sciences, Vol. 18, No. 4, pp. 397-416.
  4. Holland, G. J.(1980), An Analytic Model of the Wind and Pressure Profiles in Hurricanes. Mon. Wea. Rev., 108, pp. 1212-1218. https://doi.org/10.1175/1520-0493(1980)108<1212:AAMOTW>2.0.CO;2
  5. Kang, J. W.(2015), Typhoon-surge Characteristics in Relation with the Tide-surge Interaction, Journal of Korean Society of Coastal and Ocean Engineers, Vol. 27, No. 1, pp. 25-37. https://doi.org/10.9765/KSCOE.2015.27.1.25
  6. Kang, T. S., S. R. Moon, S. Y. Nam and J. S. Shim(2010), The Vulnerability of the Reclaimed Seashore Land Attendant Upon Storm Surge/Coastal Inundation, Journal of Ocean Engineering and Technology, Vol. 24, No. 1, pp. 68-75.
  7. Kim, D. S., J. M. Kim, G. H. Lee and S. D. Lee(2007), Inundation Analysis Considering Water Waves and Storm Surge in the Coastal Zone, Journal of Korean Society of Coastal and Ocean Engineers, Vol. 21, No. 2, pp. 35-41.
  8. Korea Meteorological Administration(2011), Typhoon white paper, pp. 4-6.
  9. Luettich, R. A. and J. J. Westerink(2004), Formulation and Numerical Implementation of the 2D/3D ADCIRC Finite Element Model Version 44.XX, pp. 18-40.
  10. Luettich, R. A., Jr., J. J. Westerink and N. W. Scheffner (1992), ADCIRC : an advanced three-dimensional circulation model for shelves, coasts, and esturies, Report 1 : Theory and methodology of ADCIRC-2DDI and ADCIRC-3DL, Coastal Eng, Res. Crt., U.S. Army Corps of Engineers Waterways Experiment Station, Vicksburg, MS., pp. 1-137.
  11. Ministry of Public Safety and Security(2013), Disaster yearly report in 2012, pp. 17-28.
  12. Nardo, M., M. Saisana, A. Saltelli and S. Taranta(2005), Tools for Composite Indicators Building, European Communities, p. 52.
  13. National Typhoon Center (http://typ.kma.go.kr/TYPHOON/), Korea Meterological Administration (last date accessed: 17 October 2015).
  14. Park, S. J.(2010), Effects of Typhoon's Characteristics on the Storm Surge and Coastal Inundation Simulation, Interdisciplinary Program of Civil & Environmental Engineering, Graduate of Mokpo National University. pp. 50-101.
  15. SOPAC(2014), Environmental Vulnerability Index, http://gsd.spc.int/environmental-vulnerability-index.
  16. Suh, S. W. and H. J. Kim(2012), Typhoon Surge Simulation on the West Coast Incorporating Asymmetric Vortex and Wave Model on a Fine Finite Element Grid, Journal of Korean Society of Coastal and Ocean Engineers, Vol. 24, No. 3, pp. 166-178. https://doi.org/10.9765/KSCOE.2012.24.3.166
  17. UNEP(2005), Assessing Coastal Vulnerability-Developing a Global Index for Measuring Risk, http://www.unep.org/publications/.
  18. Xie, L., S. Bao, L. J. Pietrafesa, K. Foley and M. Fuentes (2006), A real-time hurricane surface wind forecasting model: formulation and verification, Monthly Weather Review, Vol. 134, No. 5, pp. 1355-1370. https://doi.org/10.1175/MWR3126.1
  19. Yoo, G. Y. and I. E. Kim(2008), Development and application of a climate change vulnerability index, Korea Environment Institute, pp. 44-45.
  20. Yoon, S. B., J. H. Lee, G. H. Kim and J. H. Song(2014), Development of Storm Sewer Numerical Model for Simulation of Coastal Urban Inundation due to Storm Surge and Rainfall, Journal of Korean Society of Coastal and Ocean Engineers, Vol. 26, No. 5, pp. 292-299. https://doi.org/10.9765/KSCOE.2014.26.5.292

Cited by

  1. Variation Characteristics of the Groundwater Level of Natural Vegetation and Sandy Beaches vol.19, pp.1, 2016, https://doi.org/10.7846/JKOSMEE.2016.19.1.62
  2. 부산 마린시티 해안의 복합재난 위험성 평가 vol.26, pp.5, 2015, https://doi.org/10.7837/kosomes.2020.26.5.506