Ocean and Polar Research

  • 제30권4호
  • /
  • Pages.453-466
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  • 2008
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  • 1598-141X(pISSN)
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  • 2234-7313(eISSN)
한국해양과학기술원 (Korea Institute of Ocean Science & Technology)
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2007년 3월 한국 서해안에 발생한 해양장파의 형성과 성장과정

Generation and Growth of Long Ocean Waves along the West Coast of Korea in March 2007

  • 최병주 (군산대학교 해양학과) ;
  • 박용우 ((주)동림피엔디 자연환경연구센터) ;
  • 권경만 (군산대학교 해양학과)
  • 발행 : 2008.12.30
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초록

In order to examine the generation mechanism of long ocean waves along the west coast of Korea and to understand the amplification process of the long ocean waves, sea level, atmospheric pressure and wind data observed every minute from 2007 March 29 to 2007 April 1 were analyzed and onedimensional numerical ocean model experiments were performed. An atmospheric pressure jump propagated southeastward from Backryungdo to Yeonggwang along the west coast of Korea with speed of $13{\sim}27\;m/s$ between 2007 March 30 23:00 and 2007 April 1 1:30. Average magnitude of pressure jump was 4.2 hPa. As a moving atmospheric jump propagated from north to south along the coast, long ocean waves were generated and the sea level abnormally rose or fell at Anheung, Kunsan, Wido and Yeonggwang. Average amplitude of sea level rise (or fall) was about 113.6 cm. In a one-dimensional numerical ocean model, nonlinear shallow water equations were numerically integrated and a moving atmospheric pressure jump with traveling speed of 24 m/s was used as an external force. While the atmospheric pressure jump travels over 60 m depth ocean, a long ocean wave is generated. Because the propagation speed of the atmospheric jump is almost equal to that of the long ocean wave, Proudman resonance occurs and the long ocean wave amplifies. As the atmospheric pressure jump moves into the coastal area shallower than 60 m, the speed of the long ocean wave decreases and Proudman resonance effect decreases. However, the amplitude of the long ocean wave increases and wave length becomes shorter because of shoaling effect. When the long ocean wave hits the land boundary, amplitude of the long ocean wave drastically amplifies due to reflection. Data analysis and numerical experiments suggest that the southeastward propagation of an atmospheric pressure jump over the shallow ocean, which is a necessary condition for Proudaman resonance, generated the long ocean waves along the west coast of Korea on 2007 March 31 and the ocean waves amplified due to shoaling effect in the coastal area and reflection at the shore.

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참고문헌

  1. 오유리, 승영호, 우승범. 2007. Wavelet analysis of the sea level fluctuations associated with a surge incident occurred on March 31st along the western coast of Korea. p. 37. In: 한국해양학회 추계학술대회 초록집
  2. 우승범, 오유리, 승영호. 2008. Wavelet 분석을 활용한 서해 안 이상파도 원인파악에 대한 연구. p. 33-36. In: 보령해안 이상파고의 이해. 한국해안해양공학회 춘계학술대회
  3. 최병주, 박용우, 권경만, 이상호. 2008. 2007년 3월 한국 서해 안에 발생한 해양장파의 형성과 전파과정. p. 37-42. In: 보령해안 이상파고의 이해. 한국해안해양공학회 춘계학 술대회
  4. 최병호, 민병일, 전철규, 임관창. 2007. 대륙붕상의 미기압변 동에 의한 영광지역의 부진동, p. 328. In: 2007년도 한국 해양과학기술공동학술대회 초록집. 한국해양과학기술협의회
  5. Dragani, W.C. 2007. Numerical experiments on the generation of long ocean waves in coastal waters of the Buenos Aires province, Argentina. Cont. Shelf Res., 27(5), 699-712 https://doi.org/10.1016/j.csr.2006.11.009
  6. Gomis, D., S. Monserrat, and J. Tintore. 1993. Pressureforced seiches of large amplitude in inlets of the Balearic Islands. J. Geophys. Res., 98, 14437-14445 https://doi.org/10.1029/93JC00623
  7. Hibiya, T. and K. Kajiura. 1982. Origin of the Abiki Phenomenon (a kind of Seiche) in Nagasaki Bay. J. Oceanogr. Soc. Japan, 38, 172-182 https://doi.org/10.1007/BF02110288
  8. Jansa, A., S. Monserrat, and D. Gomis. 2007. The rissaga of 15 June 2006 in Ciutadella (Menorca), a meterological tsunami. Adv. Geosci., 12, 1-4 https://doi.org/10.5194/adgeo-12-1-2007
  9. Lee, J.-W., K.-Y. Heo, K.-J. Ha, K.-S. Park, and K-C. Jun. 2008. Simulations of the mesoscale cyclone accompanying the storm surge on 30 march 2007 in the western coast of Korea. Asia-Pacific J. Atmos. Sci., 44, 121-135
  10. Monserrat, S., A. Ibbetson, and A.J. Thorpe. 1991. Atmospheric gravity waves and the 'Rissaga' phenomenon. Q. J. Roy. Meteorol. Soc., 117, 553-570
  11. Monserrat, S., I. Vilibic, and A.B. Rabinovich. 2006. Meteotsunamis: Atmospherically induced destructive ocean waves in the tsunami frequency band. Nat. Hazards Earth Syst. Sci., 6, 1035-1051 https://doi.org/10.5194/nhess-6-1035-2006
  12. Murray, M.T. 1964. A general method for the analysis of hourly heights of the tide. Int. Hydrogr. Rev., 41(2), 91-101
  13. Murty, T.S. 1984. Storm Surges-Meteorological Ocean Tides. Can. Bull. Fish. Aquat. Sci., No. 212, 897 p
  14. Proudman, J. 1929. The Effects on the Sea of Changes in Atmospheric Pressure. Geophys. Suppl. Mon. Notices R. Astr. Soc., 2(4), 197-209 https://doi.org/10.1111/j.1365-246X.1929.tb05408.x
  15. Proudman, J. 1953. Dynamical Oceanography. Methuen, London. 409 p
  16. Rabinovich, A.B. and S. Monserrat. 1996. Meteorological Tsunami near the Balearic and Kuril Oslands: Descriptive and statistical analysis. Nat. Hazards, 13, 55-90 https://doi.org/10.1007/BF00156506
  17. Rabinovich, A.B. and S. Monserrat. 1998. Generation of meteorological tsunami (Large amplitude seiches) near the Balearic and Kuril Islands. Nat. Hazards, 18, 27-55 https://doi.org/10.1023/A:1008096627047
  18. Vilibic, I. and H. Mihanovic. 2003. A study of resonant oscillations in the Split harbor (Adriatic Sea). Estuar. Coast. Shelf Sci., 56, 861-867 https://doi.org/10.1016/S0272-7714(02)00304-9
  19. Vilibic, I., N. Domijan, and S. Cupic. 2005. Wind versus air pressure seiche triggering in the Middle Adriatic coastal waters. J. Mar. Syst., 67, 189-200 https://doi.org/10.1016/j.jmarsys.2005.04.007
  20. Vilibic, I., N. Domijan, M. Orlic, N. Leder, and M. Pasaric. 2004. Resonant coupling of a traveling air pressure disturbance with the east Adriatic coastal waters. J. Geophys. Res., 109, C10001 https://doi.org/10.1029/2004JC002279

피인용 문헌

  1. Simulation of atmospheric states for a storm surge on the west coast of Korea: model comparison between MM5, WRF and COAMPS vol.51, pp.1, 2009, https://doi.org/10.1007/s11069-009-9395-y
  2. Korean Ocean Forecasting System: Present and Future vol.18, pp.2, 2013, https://doi.org/10.7850/jkso.2013.18.2.89
  3. Analysis of Generation and Amplification Mechanism of Abnormal Waves Occurred along the West Coast of Korea vol.26, pp.5, 2014, https://doi.org/10.9765/KSCOE.2014.26.5.314
  4. Analysis of Abnormal Wave at the West Coast on 31 March 2007 vol.24, pp.3, 2012, https://doi.org/10.9765/KSCOE.2012.24.3.217
  5. Atmospheric Analysis on the Meteo-tsunami Case Occurred on 31 March 2007 at the Yellow Sea of South Korea vol.23, pp.12, 2014, https://doi.org/10.5322/JESI.2014.23.12.1999
  6. Meteotsunami-tide interactions and high-frequency sea level oscillations in the eastern Yellow Sea vol.119, pp.10, 2014, https://doi.org/10.1002/2013JC009788