Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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Characteristics of Spatio-temporal Variability of Daily averaged Tidal Residuals in Korean Coasts

한국연안 일평균 조위편차의 시공간적 변동 특성

  • Kim, Ho-Kyun (Ocean Research Division, Korea Hydrographic and Oceanographic Administration) ;
  • Kim, Young-Taeg (Ocean Research Division, Korea Hydrographic and Oceanographic Administration)
  • 김호균 (국립해양조사원 해양과학조사연구실) ;
  • 김영택 (국립해양조사원 해양과학조사연구실)
  • Received : 2013.10.01
  • Accepted : 2013.12.26
  • Published : 2013.12.31
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Abstract

EOF analysis of tidal residual derived from 2003~2009 tide data was used to identify the spatio-temporal variability. The effect of sea surface air pressures and winds on the tidal residual was also investigated by the correlation analysis. The first mode accounting for 68 % of the total variance represented concurrent sea level rise or fall, and the second mode accounting for 21 % of the total variance explained alternative sea level rise and fall between West Sea coast and both South Sea and East Sea coasts. While northerly and southerly winds dominated the tidal residual in the eastern coast of Yellow Sea, the effect of sea surface air pressures on the tidal residual increased along the coastal regions from South Sea to East Sea.

본 연구에서는 우리나라 연안의 2003~2009년 해수면자료로 조위편차를 산출하고, 일평균조위편차의 시공간적 변동을 EOF 분석, 해면기압과 바람이 조위편차 변동에 얼마나 영향을 미치는지를 상관성 분석을 통해 알아보았다. 일평균조위편차는 전체 변동량의 68 %(제1모드)가 동시승강하였고, 전체 변동량의 21 %(제2모드)는 서해안이 상승할 때 남해안과 동해안이 하강하는 교차승강을 하였다. 해역별로 조위편차에 영향을 주는 주요 요인을 보면, 서해안은 남-북 방향의 바람 성분이었고, 남해안은 동해안으로 갈수록 해면기압의 영향이 우세하였다.

Keywords

References

  1. Cho, H. and J. W. Kang(2012), Probability Density Function of the Tidal Residuals in the Korean Coast, Journal of Korean Society of Coastal and Ocean Engineers, Vol. 24, No. 1, pp. 1-9. https://doi.org/10.9765/KSCOE.2012.24.1.001
  2. Hsueh, Y., R. D. Romea and P. W. Dewitt(1986), Wintertime Winds and Coastal Sea-Level Fluctuations in the Northeast China Sea, Part II: Numerical Model, Journal of Physical Oceanography, Vol. 16, No. 2, pp. 241-261. https://doi.org/10.1175/1520-0485(1986)016<0241:WWACSL>2.0.CO;2
  3. Hsueh, Y. and R. D. Romea(1983), Wintertime Winds and Coastal Sea-Level Fluctuations in the Northeast China Sea, Part I: Observation, Journal of Physical Oceanography, Vol. 13, No. 11, pp. 2091-2106. https://doi.org/10.1175/1520-0485(1983)013<2091:WWACSL>2.0.CO;2
  4. Kang, J. W., S. J. Park and M. W. Park(2008), Rising Tendencies of both Tidal Elevation and Surge Level at the Southwestern Coast, Journal of Korean Society of Coastal and Ocean Engineers, Vol. 20, No. 1, pp. 14-24.
  5. Kang, J. W., Y. S. Kim, H. Y. Cho and J. Shim(2011), Characteristics of Nearshore Surge-Intensity, Journal of Korean Society of Coastal and Ocean Engineers, Vol. 23, No. 6, pp. 458-465. https://doi.org/10.9765/KSCOE.2011.23.6.458
  6. KHOA(2010), Korea Hydrographic and Oceanographic Adminstration, 2010 Technical Reports of Oceanographic Research, p. 483.
  7. Kwon, S. J., I. Moon and E. Lee(2008), A Study on the Long-Term Variations of Annual Maximum Surge Heights at Sokcho and Mukho Harbors, Journal of Korean Society of Coastal and Ocean Engineers, Vol. 20, No. 6, pp. 564-574.
  8. NTC(2003), National Typhon Center, http://typ.kma.go.kr/.
  9. Pugh, D. T.(1987), Tides, Surges and Mean Sea-Level, A handbook of Engineers and scientists. John Wiley & Sons (Reprinted with corrections June 1996), p. 472.
  10. Pugh, D. T.(2004), Changing Sea Levels, Effect of Tides, Weather and Climate, Cambridge University Press, p. 280.

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