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Journal of Korean Society of Coastal and Ocean Engineers > Volume 32(6); 2020 > Article
J Korean Soc Coast Ocean Eng 2020;32(6): 465-480. doi: https://doi.org/10.9765/KSCOE.2020.32.6.465
태풍 기상장의 신뢰도 분석: 태풍 산바(1216)
권갑근1, 조명환2, 류경호3, 윤성범4
1(주) HYCERG 부설연구소 선임연구원
2한양대학교 대학원 건설환경공학과 대학원생
3한양대학교 대학원 건설환경공학과 대학원생
4한양대학교 건설환경공학과 교수
Analysis of Reliability of Weather Fields for Typhoon Sanba (1216)
Kab Keun Kwon1, Myeong Hwan Jho2, Kyong Ho Ryu3, Sung Bum Yoon4
1Senior Researcher, Research Institute, HYCERG, Hanyang University, ERICA Campus
2Graduate Student, Department of Civil and Environmental Engineering, Hanyang University
3Graduate Student, Department of Civil and Environmental Engineering, Hanyang University
4Professor, Department of Civil and Environmental Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do 15588, Korea
Corresponding author: Sung Bum Yoon ,Tel: +82-31-400-5144, Email: sbyoon@hanyang.ac.kr
Received: October 7, 2020;  Revised: December 8, 2020.  Accepted: December 9, 2020.
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ABSTRACT
Numerical simulations of the storm surge and the wave induced by the Typhoon Sanba incident on the south coast of Korea in 2012 are conducted using the JMA-MSM forecast weather field, NCEP-CFSR reanalysis weather field, ECMWF-ERA5 reanalysis weather field, and the pressure and wind fields obtained using the best track information provided by JTWC. The calculated surge heights are compared with the time history observed at harbors along the coasts of Korea. For the waves the calculated significant wave heights are compared with the data measured using the wave buoys and the underwater pressure type wave gauge. As a result the JMA-MSM and the NCEP-CFSR weather fields give the highest reliability. The ECMWF-ERA5 gives in general surge and wave heights weaker than the measured. The ECMWF-ERA5, however, reproduces the best convergence belt formed in front of the typhoon. The weather field obtained using JTWC best track information gives the worst agreement.
Keywords: Typhoon Sanba, JMA-MSM, NCEP-CFSR, ECMWF-ERA5, JTWC best track, storm surge, wave, numerical simulation
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