한국해군과학기술학회
[ Article ]
Journal of the KNST - Vol. 7, No. 2, pp.167-174
ISSN: 2635-4926 (Print)
Print publication date 30 Jun 2024
Received 13 May 2024 Revised 22 May 2024 Accepted 15 Jun 2024
DOI: https://doi.org/10.31818/JKNST.2024.6.7.2.167

2020년 2개의 태풍(Maysak, Haishen)에 의한 해양 반응

변상신*
해군 중령/해군사관학교 해양학과 교수
Ocean Response Caused by Two Typhoons(Maysak, Haishen) in 2020
Sang-Shin Byun*
Commander, ROK Navy/Professor, Dept. of Oceanography, Republic of Korea Naval Academy

Correspondence to: *Sang-Shin Byun Dept. of Oceanography, Republic of Korea Naval Academy 1 Jungwon-ro, Jinhae-gu, Changwon-si, Gyungsangnam-do, 51704, Republic of Korea Tel: +82-55-907-5253 Fax: +82-55-907-5231 E-mail: ssbyun@navy.ac.kr

Ⓒ 2024 Korea Society for Naval Science & Technology

초록

2020년 9월 두 개의 태풍이 상륙하여 동해 연안 부근의 육지를 통과하며 북상하였다. 동해시 동방 약 9 km 해상에 ESROB이 계류되어 있어 이들 태풍이 통과하기 이전부터 통과한 이후까지 해양 반응 데이터를 상세하게 기록할 수 있었다. 이 자료를 활용하여 시간별 수직 수온의 변화와 풍속 및 파고의 변화를 분석하였다. 태풍에 의해 발달한 혼합층의 깊이는 약 20 m 였고, 지속기간은 약 2일이었다. 바람이 불고 난 뒤 해상의 파고가 높아지는 시간 지연은 약 70~100분 정도임을 확인하였다. 태풍에 의한 최대 파고는 약 10 m이고, 유의 파고는 약 5 m로 2배의 차이가 있음을 확인하였다.

Abstract

In September 2020, two typhoons made landfall and moved north, passing through the land near the east coast of Korea. ESROB was moored about 9 km east of Donghae City, allowing detailed ocean response data to be recorded from before to after the passage of these typhoons. Using this unique data, we analyzed changes in vertical water temperature, wind speed, and wave height over time. The depth of the mixed layer developed by the typhoons was about 20 m, and it lasted about 2 days. There is a time delay for the sea wave height to increase after the wind blows, and it was confirmed that the time was about 70 to 100 minutes. The maximum wave height caused by the typhoons was approximately 10 m, and the significant wave height was approximately 5 m, confirming a two-fold difference.

Keywords:

Typhoon, East Coast of Korea, Mixed Layer, Wave Height

키워드:

태풍, 동해연안, 혼합층, 파고

Acknowledgments

본 논문은 2024년 해군사관학교 해양연구소 학술연구과제 연구비의 지원으로 수행된 연구임.

References

  • K.-A. Park and K.-R. Kim, “Unprecedented coastal upwelling in the East/Japan Sea and linkage to long-term large-scale variations,” Geophys. Res. Lett. 37(9) (2010). [https://doi.org/10.1029/2009GL042231]
  • K.-I. Chang, W. J. Teague, S. J. Lyu, H. T. Perkins, D.-K. Lee, D. R. Watts, Y.-B. Kim, D. A. Mitchell, C. M. Lee, and K. Kim, “Circulation and currents in the southwestern East/Japan Sea: Overview and review,” Prog. Oceanogr. 61, 105-156 (2004). [https://doi.org/10.1016/j.pocean.2004.06.005]
  • S. H. Nam, J. Y. Yun, and K. Kim (2004). Observations on the coastal ocean response to typhoon MAEMI at the East Sea Real-time Ocean Buoy. The Sea: J. Korean Soc. Oceanogr., 9(3), 111-118.
  • S.-S. Byun, J. J. Park, K.-I. Chang, and R. W. Schmitt, “Observation of near-inertial wave reflections within the thermostad layer of an anticyclonic mesoscale eddy,” Geophys. Res. Lett. 37(1) (2010). [https://doi.org/10.1029/2009GL041601]
  • S.-S. Byun, and C.-B. Cho. "Coastal upwelling observed off the East coast of Korea and variability of passive sound detection environment, "J. Acoust. Soc. Kor. 41(6), 601-609 (2022).
  • 2020년 태풍 분석보고서, 기상청 국가태풍센터 (2021).