남중국해 여름몬순과 ENSO와의 가능한 상관관계

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최재원;박기준;김정윤;김백조
Choi, Jae-Won;Park, Ki-Jun;Kim, Jeoung-Yun;Kim, Baek-Jo

  • 투고 : 2015.04.17
  • 심사 : 2015.06.11
  • 발행 : 2015.06.30

초록

This study analyzed a correlation between South China Sea summer (June to September) monsoon (SCSSM) and the ENSO for the last 32 years (1979 to 2010). There was a correlation that the higher (lower) the SST in the $Ni{\tilde{n}}o-3.4$ region was, the weaker (stronger) the SCSSM intensity was. To identify the reason for this correlation, a difference of means between 8 El $Ni{\tilde{n}}o$ years and 8 La $Ni{\tilde{n}}a$ years (June to September). The analysis on the difference between two groups with respect to the 850 hPa stream flows showed that there were anomalous huge cyclones in the subtropical Pacific in the both hemispheres so that cold and dry anomalous northerlies were strengthened in the South China Sea relatively while anomalous westerlies were strengthened from the Maritime Continent to the off the coast of Chile. The analysis on the difference between two groups with respect to the 200 hPa stream flows showed that the opposite anomalous pressure system pattern to that in the 850 hPa stream flows were shown. In the subtropical Pacific of the both hemispheres, anomalous anticyclones existed so that anomalous easterlies were strengthened from the Maritime Continent to the equatorial central Pacific. Considering the anomalous atmospheric circulations in the upper and lower layers of the troposphere, upward airflows from the equatorial central and eastern Pacific were downward in the South China Sea and the Maritime Continent, which was a structure of anomalous atmospheric circulations. This means that the Walker Circulation was weakened and it was a typical structure of atmospheric circulations revealed in El $Ni{\tilde{n}}o$ years.

키워드

South China Sea summer monsoon;ENSO;Walker Circulation

참고문헌

  1. Ding, Y.H., 1992, Summer monsoon rainfalls in China, Journal of the Meteorological Society of Japan, 70, 373-396.
  2. Ju, J., Slingo, J., 1995, The Asian summer monsoon and ENSO, Quarterly Journal of the Royal Meteorological Society, 121, 1133-1168. https://doi.org/10.1002/qj.49712152509
  3. Kajikawa, Y., Yasunari, T., Kawamura, R., 2003, The role of the local Hadley circulation over the western Pacific on the zonally asymmetric anomalies over the Indian Ocean, Journal of the Meteorological Society of Japan, 81, 259-276. https://doi.org/10.2151/jmsj.81.259
  4. Kajikawa, Y., Yasunari, T., Wang, B., 2009, Decadal change in intraseasonal variability over the South China Sea, Geophysical Research Letters, 36, L06810, doi:10.1029/2009gl037174. https://doi.org/10.1029/2009GL037174
  5. Kajikawa, Y., Bin, W., 2012, Interdecadal change of the South China Sea summer monsoon onset, Journal of Climate, 25, 3207-3218. https://doi.org/10.1175/JCLI-D-11-00207.1
  6. Kalnay, E., Kanamitsu, M., Kistler, R., co-authors, 1996, The NCEP/NCAR 40-year reanalysis project, Bulletin of American Meteorological Society, 77, 437-471. https://doi.org/10.1175/1520-0477(1996)077<0437:TNYRP>2.0.CO;2
  7. Kim W. M., Jhun, J. G., Moon, B. K., 2008, The interdecadal variation of relationship between Indian Ocean sea surface temperature and East Asian summer monsoon, Journal of the Korean Earth Science Society, 29, 45-59. https://doi.org/10.5467/JKESS.2008.29.1.045
  8. Kistler, R., Kalnay, E., Collins, W., co-authors, 2001, The NCEP-NCAR 50-year reanalysis: monthly means CDROM and documentation, Bulletin of American Meteorological Society, 82, 247-267. https://doi.org/10.1175/1520-0477(2001)082<0247:TNNYRM>2.3.CO;2
  9. Kwon, M., Jhun, J.G., Wang, B., An, S.I., Kug, J.S., 2005, Decadal change in relationship between east Asian and WNP summer monsoons, Geophysical Research Letters, 32, L16709, doi:10.1029/2005gl023026. https://doi.org/10.1029/2005GL023026
  10. Kwon, M., Jhun, J.G., Ha, K.J., 2007, Decadal change in east Asian summer monsoon circulation in the mid-1990s, Geophysical Research Letters, 34, L21706, doi:10.1029/2007GL031977. https://doi.org/10.1029/2007GL031977
  11. Lau, K.M., Yang, S., 1997, Climatology and interannual variability of the Southeast Asian summer monsoon, Advances in Atmospheric Sciences, 14, 141-162. https://doi.org/10.1007/s00376-997-0016-y
  12. Liebmann, B., Smith, C.A., 1996, Description of a complete (interpolated) outgoing longwave radiation dataset, Bulletin of American Meteorological Society, 77, 1275 -1277.
  13. Li, C., Mu, M., 1999, El Nino occurrence and sub-surface ocean temperature anomalies in the Pacific warm pool, Chinese Journal of the Atmospheric Sciences, 5, 513-521.
  14. Li, J.P., Zeng, Q.C., 2002, A unified monsoon index, Geophysical Research Letters, 29, 1274 doi:10.1029/2001GL013874. https://doi.org/10.1029/2001GL013874
  15. Li, J.P., Zeng, Q.C., 2003, A new monsoon index and the geographical distribution of the global monsoons, Advances in Atmospheric Sciences, 20, 299-302. https://doi.org/10.1007/s00376-003-0016-5
  16. Li, J.P., Zeng, Q.C., 2005, A new monsoon index, its interannual variability and relation with monsoon precipitation, Climatic and Environmental Research, 10, 351-365.
  17. Murakami, T., Matsumoto, J., 1994, Summer monsoon over the Asian continent and western North Pacific, Journal of the Meteorological Society of Japan, 72, 719-745.
  18. Nitta, T., 1987, Convective activities in the tropical western Pacific and their impact on the Northern Hemisphere summer circulation, Journal of the Meteorological Society of Japan, 65, 373-390.
  19. Oort, A.H., Yienger, J.J., 1996, Observed interannual variability in the Hadley circulation and its connection to ENSO, Journal of Climate, 9, 2751-2767. https://doi.org/10.1175/1520-0442(1996)009<2751:OIVITH>2.0.CO;2
  20. Reynolds, R.W., Rayner, N.A., Smith, T.M., Stokes, D.C., Wang, W., 2002, An improved in situ and satellite SST analysis for climate, Journal of Climate, 15, 1609-1625. https://doi.org/10.1175/1520-0442(2002)015<1609:AIISAS>2.0.CO;2
  21. Ryu, C.S., Kim, B.J., 2002, Observational characteristics of East Asian monsoon during the summers of 1993 and 1994, Journal of the Korean Earth Science Society, 23, 369-379.
  22. Ryu, G.H., Sohn, B.J., 2009, The impact of interaction between cloud and longwave radiation on the Asian monsoon circulation, Journal of the Korean Earth Science Society, 30, 58-68. https://doi.org/10.5467/JKESS.2009.30.1.058
  23. So, C.H., Chan, J.C.L., 1997, An observational study on the onset of the summer monsoon over South China around Hong Kong, Journal of the Meteorological Society of Japan, 75, 43-57.
  24. Tao, S., Chen, L., 1987, A review of recent research on the East Asian summer monsoon in China. Monsoon Meteorology, C.-P. Chang and T. N. Krishnamurti, Eds., Oxford University Press, 60 - 92.
  25. Wang, B., Wu, R., Fu, X., 2000, Pacific-East Asian teleconnection: How does ENSO affect East Asian Climate?, Journal of Climate, 13, 1517 1536.
  26. Wang, B., Xu, X.H., 1997 Northern Hemisphere summer monsoon singularities and climatological intraseasonal oscillation, Journal of Climate, 10, 1071-1085. https://doi.org/10.1175/1520-0442(1997)010<1071:NHSMSA>2.0.CO;2
  27. Wang, B., LinHo, 2002, Rainy season of the Asian Pacific summer monsoon, Journal of Climate, 15, 386-398. https://doi.org/10.1175/1520-0442(2002)015<0386:RSOTAP>2.0.CO;2
  28. Wang, B., Huang, F., Wu, Z.W., Yang, J., Fu, X.H., Kikuchi, K., 2009, Multi-scale climate variability of the South China Sea monsoon: A review, Dynamics of Atmospheres and Oceans, 47, 15-37. https://doi.org/10.1016/j.dynatmoce.2008.09.004
  29. Wang, B., Wu, R., 1997, Peculiar temporal structure of the South China Sea summer monsoon, Advances in Atmospheric Sciences, 14, 177-194. https://doi.org/10.1007/s00376-997-0018-9
  30. Wilks, D.S., 1995, Statistical Methods in the Atmospheric Sciences, Academic Press, 467 pp.
  31. Xie, P., Arkin, P.A., 1997, Global precipitation: A 17-year monthly analysis based on gauge observations, satellite estimates, and numerical model outputs, Bulletin of American Meteorological Society, 78, 2539-2558. https://doi.org/10.1175/1520-0477(1997)078<2539:GPAYMA>2.0.CO;2
  32. Yim, S.Y., Yeh, S.W., Wu, R., Jhun, J.G., 2008, The influence of ENSO on decadal variations in the relationship between the East Asian and western North Pacific summer monsoons, Journal of Climate, 21, 3165-3179. https://doi.org/10.1175/2007JCLI1948.1
  33. Zhang, R., Sumi, A., Kimoto, M., 1996, Impact of El Nino on the East Asian monsoon: A diagnostic study of the '86/87 and '91/92 events, Journal of the Meteorological Society of Japan, 74, 49 - 62.
  34. Zhou, W., Chan, J.C.L., 2007, ENSO and the South China Sea summer monsoon onset, International Journal of Climatology, 27, 157-167. https://doi.org/10.1002/joc.1380

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