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Seasonal scale variability of the East Asian winter monsoon and the development of a two-dimensional monsoon index

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Abstract

This study investigates the seasonal scale variability of the East Asian winter monsoon (EAWM), which is distinguished from the seasonal cycle with temporal variation throughout winter. Winters lasting 120 days (Nov. 17–Mar. 16) for a period of 64 years from the NCEP daily reanalysis data set are used to study the seasonal scale variability of the EAWM. Cyclostationary empirical orthogonal function (CSEOF) analysis is adopted to decompose the variability of the EAWM. The second CSEOF mode of 850-hPa temperature exhibits a seasonal scale variation, the physical mechanism of which is explained in terms of physically consistent variations of temperature, geopotential height, sea level pressure, wind, and surface heat fluxes. The seasonal-scale EAWM exhibits a weak subseasonal and a strong interannual variability and has gradually weakened during the 64 years. In a weak EAWM phase, the land-sea contrast of sea level pressure declines in East Asia. Consistent with this change, low-level winds decrease and warm thermal advection increases over the eastern part of mid-latitude East Asia. Latent and sensible heat fluxes are reduced significantly over the marginal seas in East Asia. However, during a strong EAWM phase, the physical conditions in East Asia reverse. A large fraction of the variability of the EAWM is explained by the seasonal cycle and the seasonal scale variation. A two-dimensional EAWM index was developed to explain these two distinct components of the EAWM variability. The new index appears to be suitable for measuring both the subseasonal and the interannual variability of the EAWM.

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References

  • Barnston AG, Livezey RE (1987) Classification, seasonality and persistence of low-frequency atmospheric circulation patterns. Mon Weather Rev 115(6):1083–1126

    Article  Google Scholar 

  • D’Arrigo R, Wilson R, Panagiotopoulos F, Wu B (2005) On the long-term interannual variability of the east Asian winter monsoon. Geophys Res Lett 32:L21706. doi:10.1029/2005gl023235

    Article  Google Scholar 

  • Dee DP, Uppala SM, Simmons AJ, Berrisford P, Poli P, Kobayashi S, Andrae U, Balmaseda MA, Balsamo G, Bauer P, Bechtold P, Beljaars ACM, van de Berg L, Bidlot J, Bormann N, Delsol C, Dragani R, Fuentes M, Geer AJ, Haimberger L, Healy SB, Hersbach H, Hólm EV, Isaksen L, Kållberg P, Köhler M, Matricardi M, McNally AP, Monge-Sanz BM, Morcrette J-J, Park B-K, Peubey C, de Rosnay P, Tavolato C, Thépaut J-N, Vitart F (2011) The ERA-interim reanalysis: configuration and performance of the data assimilation system. Quart J R Meteorol Soc 137:553–597. doi:10.1002/qj.828

    Article  Google Scholar 

  • Ding Y, Krishnamurti TN (1987) Heat budget of the Siberian high and the winter monsoon. Mon Weather Rev 115(10):2428–2449

    Article  Google Scholar 

  • Gong D-Y, Wang S-W, Zhu J-H (2001) East Asian winter monsoon and Arctic Oscillation. Geophys Res Lett 28(10):2073–2076. doi:10.1029/2000gl012311

    Article  Google Scholar 

  • Hori ME, Ueda H (2006) Impact of global warming on the East Asian winter monsoon as revealed by nine coupled atmosphere-ocean GCMs. Geophys Res Lett 33:L03713. doi:10.1029/2005GL024961

    Google Scholar 

  • Jhun J-G, Lee E-J (2004) A new East Asian winter monsoon index and associated characteristics of the winter monsoon. J Clim 17(4):711–726

    Article  Google Scholar 

  • Kalnay E, Kanamitsu M, Kistler R, Collins W, Deaven D, Gandin L, Iredell M, Saha S, White G, Woollen J, Zhu Y, Chelliah M, Ebisuzaki W, Higgins W, Janowiak J, Mo KC, Ropelewski C, Wang J, Leetmaa A, Reynolds R, Jenne R, Joseph D (1996) The NCEP/NCAR 40-year reanalysis project. Bull Amer Meteorol Soc 77(3):437–471

    Article  Google Scholar 

  • Kim K-Y, North GR (1997) EOFs of harmonizable cyclostationary processes. J Atmos Sci 54(19):2416–2427

    Article  Google Scholar 

  • Kim K-Y, North GR, Huang J (1996) EOFs of one-dimensional cyclostationary time series: computations, examples, and stochastic modeling. J Atmos Sci 53(7):1007–1017

    Article  Google Scholar 

  • Kim K-Y, Na H, Jhun J-G (2012a) Oceanic response to midlatitude Rossby waves aloft and its feedback in the lower atmosphere in winter Northern Hemisphere. J Geophys Res 117:D07110. doi:10.1029/2011jd017238

    Google Scholar 

  • Kim Y, Kim K-Y, Jhun J-G (2012b) Seasonal evolution mechanism of the East Asian winter monsoon and its interannual variability. Clim Dyn. doi:10.1007/s00382-012-1491-0

  • Marshall J, Plumb RA (2008) Atmosphere, ocean, and climate dynamics: an introductory text. Elsevier, Amsterdam

    Google Scholar 

  • Na H, Kim K-Y, Chang K-I, Park JJ, Kim K, Minobe S (2012) Decadal variability of the upper ocean heat content in the East/Japan Sea and its possible relationship to northwestern Pacific variability. J Geophys Res 117:C02017. doi:10.1029/2011jc007369

    Google Scholar 

  • Park T-W, Ho C-H, Yang S (2011) Relationship between the Arctic oscillation and cold surges over East Asia. J Clim 24(1):68–83. doi:10.1175/2010jcli3529.1

    Article  Google Scholar 

  • Peixoto JP, Oort AH (1992) Physics of climate. American Institute of Physics Press, New York

    Google Scholar 

  • Reynolds RW, Smith TM, Liu C, Chelton DB, Casey KS, Schlax MG (2007) Daily high-resolution-blended analyses for sea surface temperature. J Clim 20:5473–5496

    Article  Google Scholar 

  • Seo K-H, Kim K-Y (2003) Propagation and initiation mechanisms of the Madden-Julian oscillation. J Geophys Res 108(D13):4384. doi:10.1029/2002jd002876

    Google Scholar 

  • Wang L, Chen W (2010) How well do existing indices measure the strength of the East Asian winter monsoon? Adv Atmos Sci 27(4):855–870. doi:10.1007/s00376-009-9094-3

    Article  Google Scholar 

  • Wang L, Huang R, Gu L, Chen W, Kang L (2009) Interdecadal variations of the East Asian winter monsoon and their association with quasi-stationary planetary wave activity. J Clim 22:4860–4872. doi:10.1175/2009jcli2973.1

    Article  Google Scholar 

  • Wang B, Wu Z, Chang C-P, Liu J, Li J, Zhou T (2010a) Another look at interannual-to-interdecadal variations of the East Asian winter monsoon: the northern and southern temperature modes. J Clim 23(6):1495–1512. doi:10.1175/2009jcli3243.1

    Article  Google Scholar 

  • Wang C, Liu H, Lee S-K (2010b) The record-breaking cold temperatures during the winter of 2009/2010 in the Northern Hemisphere. Atmos Sci Lett 11(3):161–168. doi:10.1002/asl.278

    Article  Google Scholar 

  • Wang X, Wang C, Zhou W, Wang D, Song J (2011) Teleconnected influence of North Atlantic sea surface temperature on the El Niño onset. Clim Dyn 37:663–676. doi:10.1007/s00382-010-0833-z

    Article  Google Scholar 

  • Wu B, Wang J (2002) Winter Arctic Oscillation, Siberian High and East Asian winter monsoon. Geophys Res Lett 29(19):1897. doi:10.1029/2002gl015373

    Article  Google Scholar 

  • Wu B, Zhang R, D’Arrigo R (2006) Distinct modes of the East Asian winter monsoon. Mon Weather Rev 134(8):2165–2179. doi:10.1175/MWR3150.1

    Article  Google Scholar 

  • Xu M, Chang C-P, Fu C, Qi Y, Robock A, Robinson D, Zhang H (2006) Steady decline of east Asian monsoon winds, 1969–2000: evidence from direct ground measurements of wind speed. J Geophys Res 111:D24111. doi:10.1029/2006JD007337

    Article  Google Scholar 

  • Yang S, Lau K-M, Kim K-M (2002) Variations of the East Asian jet stream and Asian–Pacific–American winter climate anomalies. J Clim 15(3):306–325

    Article  Google Scholar 

  • Zhang Y, Sperber KR, Boyle JS (1997) Climatology and interannual variation of the East Asian winter monsoon: results from the 1979–95 NCEP/NCAR reanalysis. Mon Weather Rev 125(10):2605–2619

    Article  Google Scholar 

Download references

Acknowledgments

This work was funded by the Korea Meteorological Administration Research and Development Program under Grant CATER 2012-3010.

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Authors and Affiliations

  1. School of Earth and Environmental Sciences, Seoul National University, 1 Gwanangno, Gwanak-gu, Seoul, 151-747, Republic of Korea

    Yoojin Kim, Kwang-Yul Kim & Sunyoung Park

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  1. Yoojin Kim
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  2. Kwang-Yul Kim
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  3. Sunyoung Park
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Correspondence to Kwang-Yul Kim.

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Kim, Y., Kim, KY. & Park, S. Seasonal scale variability of the East Asian winter monsoon and the development of a two-dimensional monsoon index. Clim Dyn 42, 2159–2172 (2014). https://doi.org/10.1007/s00382-013-1724-x

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  • DOI: https://doi.org/10.1007/s00382-013-1724-x

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