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Journal of Korean Society of Coastal and Ocean Engineers > Volume 30(6); 2018 > Article
J Korean Soc Coast Ocean Eng 2018;30(6): 235-241. doi: https://doi.org/10.9765/KSCOE.2018.30.6.235
동해안 너울 사고 특성 분석 및 대응방안 수립
황순미, 오형민, 강태순, 남수용
(주)지오시스템리서치 연안관리부
A Study on Characteristics Analysis of Swell Wave Accidents and the Establishment of Countermeasures in the East Coast
Soon-Mi Hwang, Hyeong-Min Oh, Tae-Soon Kang, Soo-Yong Nam
Department of Coastal Management, GeoSystem Research Corporation, #306 Hanlim Human Tower, 172 LS-ro, Gunpo, Gyeonggi 15807, Korea
Corresponding author: Tae-Soon Kang ,Tel: +82-70-7019-0610, Fax: +82-70-7016-0673, Email: kangts@geosr.com
Received: September 27, 2018;  Revised: October 26, 2018.  Accepted: November 12, 2018.
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In this study, we collected cases of accidents caused by swell in the east coast of Korea from 2013 to 2017. The location of the accident, the season, the type of coast and the type of damage were classified and the correlation between the accident and the wave data was analyzed by collecting the observation data of the nearby area at the time of the accident. Also, based on the results of the coastal disaster vulnerability assessment of Korea Hydrographic and Oceanographic Agency, the vulnerability grades of swell accidents area were evaluated. In swell accident area, the average grade of the wave exposure index was 4.91, the wave sensitivity index was 3.87, and the wave impact index was 4.90. As a result, most of the swell accidents occurred in the 5 grade (very vulnerable level) of the wave impact index, and the area of the east coast (78.7%) of the same 5 grade was classified into five types according to the wave sensitivity index result. Finally, a countermeasures was taken for characteristics of each type.
Keywords: swell, wave, accidents, wave impact index, countermeasures
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