Estimation of Storm Surges on the Coast of Busan

J. Ocean Eng. Technol. 2006;20(3):37-44.

Hur Dong-Soo;Yeom Gyeong-Seon;Kim Ji-Min;Kim Do-Sam;Bae Ki-Sung;

Institute of Marine Industry, Division of Civil and Environmental Engineering, Gyeongsang National University;Division of Civil and Environmental Engineering, Graduate School, Gyeongsang National University;Division of Construction and Environmental Engin

부산연안에서 폭풍해일고의 추정

허동수;염경선;김지민;김도삼;배기성;

경상대학교 토목환경공학부 해양산업연구소;경상대학교 대학원 토목환경공학부;한국해양대학교 대학원 건설환경공학부;한국해양대학교 건설환경공학부;경상대학교 토목환경공학부 해양산업연구소;

Keywords: Typhoon Maemi, Yyphoon Sarah, Typhoon Thelma, Numerical simulation, Storm surge height, Coast of Busan

핵심용어: 태풍 매미, 태풍 사라, 태풍 셀마, 수치시뮬레이션, 폭풍해일고, 부산연안

Abstract

Each year, the coast of Busan is badly damaged, due to storm surge. The damages are greatly dependent upon the local peculiarities of the region in which the storm surge occurs. So, in order to prevent/reduce recurrence of the disaster due to the storm surge, it is very important to investigate the fluctuation characteristics of the storm surge height, related to the local peculiarities at each coastal area in which the occurrence of the disaster is expected. In this paper, using the numerical model, the storm surge was simulated to examine its fluctuation characteristics at the coast of Busan Typhoons of Sarah (5914), Thelma (8705) and Maemi (0314), which caused terrible damage to the coastal areas alongthe coast of Busan in the past, were taken as an object of the storm surge simulations. Moreover, the storm surge due to virtual typhoons, which were combined with the characteristics of each proposed typhoon (Maemi, Sarah, Thelma), compared to the travel routes of other typhoons, was predicted. As expected, the results revealed that the storm surge heights are enhanced at the coastal region with the concavity like a long-shaped bay. Also, the storm surge heights, due to each typhoon, were compared and discussed at major points along the coast of Busan, related to the local peculiarities, as well as the characteristics and the travel route of the typhoon.