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Article Type:
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Dipole Structure of Interannual Variations in Summertime Tropical Cyclone Activity over East Asia

Joo-Hong Kim School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea

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Chang-Hoi Ho School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea

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Chung-Hsiung Sui Institute of Hydrological Sciences, National Central University, Jung-li, Taiwan

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Seon Ki Park Department of Environmental Science and Engineering, Ewha Woman’s University, Seoul, South Korea

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Print Publication:
15 Dec 2005
DOI:
https://doi.org/10.1175/JCLI3601.1
Page(s):
5344–5356
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Abstract

The present study examines variations in summertime (July–September) tropical cyclone (TC) activity over East Asia during the period 1951–2003. To represent TC activity, a total of 853 TC best tracks for the period were converted to TC passage frequencies (TPFs) within 5° × 5° latitude–longitude grids; TPFs are defined as the percentage values obtained by dividing the number of TC appearances in each grid box by the total number of TCs each year. Empirical orthogonal function analysis of the TPF showed three leading modes: two tropical modes that represent the long-term trend and the relationship with ENSO and one midlatitude mode that oscillates between south of Korea and southeast of Japan with an interannual time scale. The latter proved to be the most remarkable climatic fluctuation of summertime TC activity in the midlatitudes and is referred to as the East Asian dipole pattern (EADP) in this paper.

Anomalous atmospheric flows directly connected to the EADP are an enhanced anticyclonic (cyclonic) circulation centering around Japan when the TPF is high south of Korea (southeast of Japan), thereby showing an equivalent barotropic structure in the entire troposphere. This regional circulation anomaly varies in conjunction with the zonally oriented quasi-stationary Rossby wave train in the upper troposphere. This wave train is meridionally trapped in the vicinity of the summer-mean jet stream; therefore, the mean jet stream alters its internal meandering structure according to the phase of the wave train.

Corresponding author address: Chang-Hoi Ho, School of Earth and Environmental Sciences, Seoul National University, San 56-1 Shillim-Dong, Gwanak-Gu, Seoul 151-742, South Korea. Email: hoch@cpl.snu.ac.kr

Abstract

The present study examines variations in summertime (July–September) tropical cyclone (TC) activity over East Asia during the period 1951–2003. To represent TC activity, a total of 853 TC best tracks for the period were converted to TC passage frequencies (TPFs) within 5° × 5° latitude–longitude grids; TPFs are defined as the percentage values obtained by dividing the number of TC appearances in each grid box by the total number of TCs each year. Empirical orthogonal function analysis of the TPF showed three leading modes: two tropical modes that represent the long-term trend and the relationship with ENSO and one midlatitude mode that oscillates between south of Korea and southeast of Japan with an interannual time scale. The latter proved to be the most remarkable climatic fluctuation of summertime TC activity in the midlatitudes and is referred to as the East Asian dipole pattern (EADP) in this paper.

Anomalous atmospheric flows directly connected to the EADP are an enhanced anticyclonic (cyclonic) circulation centering around Japan when the TPF is high south of Korea (southeast of Japan), thereby showing an equivalent barotropic structure in the entire troposphere. This regional circulation anomaly varies in conjunction with the zonally oriented quasi-stationary Rossby wave train in the upper troposphere. This wave train is meridionally trapped in the vicinity of the summer-mean jet stream; therefore, the mean jet stream alters its internal meandering structure according to the phase of the wave train.

Corresponding author address: Chang-Hoi Ho, School of Earth and Environmental Sciences, Seoul National University, San 56-1 Shillim-Dong, Gwanak-Gu, Seoul 151-742, South Korea. Email: hoch@cpl.snu.ac.kr

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  • Branstator, G., 2002: Circumglobal teleconnections, the jet stream waveguide, and the North Atlantic Oscillation. J. Climate, 15 , 1893–1910.

    • Search Google Scholar
    • Export Citation

  • Camargo, S. J., A. W. Robertson, S. J. Gaffney, and P. Smyth, 2004: Cluster analysis of western North Pacific tropical cyclone tracks. Extended Abstracts, 26th Conf. on Hurricanes and Tropical Meteorology, Miami, FL, Amer. Meteor. Soc., 10A.7. [Available online at http://ams.confex.com/ams/26HURR/techprogram/paper_75358.htm.].

  • Chan, J. C. L., 1985: Tropical cyclone activity in the Northwest Pacific in relation to the El Niño/Southern Oscillation phenomenon. Mon. Wea. Rev., 113 , 599–606.

    • Search Google Scholar
    • Export Citation

  • Chan, J. C. L., 1995: Tropical cyclone activity in the western North Pacific in relation to the stratospheric quasi-biennial oscillation. Mon. Wea. Rev., 123 , 2567–2571.

    • Search Google Scholar
    • Export Citation

  • Chan, J. C. L., 2000: Tropical cyclone activity over the western North Pacific associated with El Niño and La Niña events. J. Climate, 13 , 2960–2972.

    • Search Google Scholar
    • Export Citation

  • Chan, J. C. L., and W. M. Gray, 1982: Tropical cyclone movement and surrounding flow relationships. Mon. Wea. Rev., 110 , 1354–1374.

  • Chan, J. C. L., and K. S. Liu, 2001: Improvements in the seasonal forecasting of tropical cyclone activity over the western North Pacific. Wea. Forecasting, 16 , 491–498.

    • Search Google Scholar
    • Export Citation

  • Chan, J. C. L., J. Shi, and C. Lam, 1998: Seasonal forecasting of tropical cyclone activity over the western North Pacific and the South China Sea. Wea. Forecasting, 13 , 997–1004.

    • Search Google Scholar
    • Export Citation

  • Chang, C-P., Y. Zhang, and T. Li, 2000: Interannual and interdecadal variations of the East Asian summer monsoon and tropical Pacific SSTs. Part I: Roles of the subtropical ridge. J. Climate, 13 , 4310–4325.

    • Search Google Scholar
    • Export Citation

  • Chen, T-C., S-P. Weng, N. Yamazaki, and S. Kiehne, 1998: Interannual variation in the tropical cyclone formation over the western North Pacific. Mon. Wea. Rev., 126 , 1080–1090.

    • Search Google Scholar
    • Export Citation

  • Chia, H-H., and C. F. Ropelewski, 2002: The interannual variability in the genesis location of tropical cyclones in the northwest Pacific. J. Climate, 15 , 2934–2944.

    • Search Google Scholar
    • Export Citation

  • George, J. E., and W. M. Gray, 1976: Tropical cyclone motion and surrounding parameter relationships. J. Appl. Meteor., 15 , 1252–1264.

    • Search Google Scholar
    • Export Citation

  • Gong, D-Y., and C-H. Ho, 2002: Shift in the summer rainfall over the Yangtze River valley in the late 1970s. Geophys. Res. Lett., 29 .1436, doi:10.1029/2001GL014523.

    • Search Google Scholar
    • Export Citation

  • Gong, D-Y., and C-H. Ho, 2003: Arctic oscillation signals in the East Asian summer monsoon. J. Geophys. Res., 108 .4066, doi:10.1029/2002JD002193.

    • Search Google Scholar
    • Export Citation

  • Hartmann, D. L., M. L. Michelsen, and S. A. Klein, 1992: Seasonal variations of tropical intraseasonal oscillations: A 20-25-day oscillation in the western Pacific. J. Atmos. Sci., 49 , 1277–1289.

    • Search Google Scholar
    • Export Citation

  • Ho, C-H., J-J. Baik, J-H. Kim, D-Y. Gong, and C-H. Sui, 2004: Interdecadal changes in summertime typhoon tracks. J. Climate, 17 , 1767–1776.

    • Search Google Scholar
    • Export Citation

  • Ho, C-H., J-H. Kim, H-S. Kim, C-H. Sui, and D-Y. Gong, 2005: Possible influence of the Antarctic Oscillation on tropical cyclone activity in the western north Pacific. J. Geophys. Res., 110 .D19104, doi:10.1029/2005JD005766.

    • Search Google Scholar
    • Export Citation

  • Hoskins, B. J., and T. Ambrazzi, 1993: Rossby wave propagation on a realistic longitudinally varying flow. J. Atmos. Sci., 50 , 1661–1671.

    • Search Google Scholar
    • Export Citation

  • Hu, Z-Z., 1997: Interdecadal variability of summer climate over East Asia and its association with 500 hPa height and global sea surface temperature. J. Geophys. Res., 102 , 19403–19412.

    • Search Google Scholar
    • Export Citation

  • Inoue, T., and J. Matsumoto, 2004: A comparison of summer sea level pressure over East Eurasia between NCEP-NCAR reanalysis and ERA-40 for the period 1960-99. J. Meteor. Soc. Japan, 82 , 951–958.

    • Search Google Scholar
    • Export Citation

  • Kalnay, E., and Coauthors, 1996: The NCEP/NCAR 40-Year Reanalysis Project. Bull. Amer. Meteor. Soc., 77 , 437–471.

  • Lander, M. A., 1994: An exploratory analysis of the relationship between tropical storm formation in the western North Pacific and ENSO. Mon. Wea. Rev., 122 , 636–651.

    • Search Google Scholar
    • Export Citation

  • Lau, K-M., K-M. Kim, and S. Yang, 2000: Dynamical and boundary forcing characteristics of regional components of the Asian summer monsoon. J. Climate, 13 , 2461–2482.

    • Search Google Scholar
    • Export Citation

  • Liebmann, B., H. H. Hendon, and J. D. Glick, 1994: The relationship between tropical cyclones of the western Pacific and Indian Oceans and the Madden-Julian Oscillation. J. Meteor. Soc. Japan, 72 , 401–411.

    • Search Google Scholar
    • Export Citation

  • Matsuura, T., M. Yumoto, and S. Iizuka, 2003: A mechanism of interdecadal variability of tropical cyclone activity over the western North Pacific. Climate Dyn., 21 , 105–117.

    • Search Google Scholar
    • Export Citation

  • North, G. R., T. L. Bell, R. F. Cahalan, and F. J. Moeng, 1982: Sampling errors in the estimation of empirical orthogonal functions. Mon. Wea. Rev., 110 , 699–706.

    • Search Google Scholar
    • Export Citation

  • Saunders, M. A., R. E. Chandler, C. J. Merchant, and F. P. Roberts, 2000: Atlantic hurricanes and NW Pacific typhoons: ENSO spatial impacts on occurrence and landfall. Geophys. Res. Lett., 27 , 1147–1150.

    • Search Google Scholar
    • Export Citation

  • Wang, B., and J. C. L. Chan, 2002: How strong ENSO events affect tropical storm activity over the western North Pacific. J. Climate, 15 , 1643–1658.

    • Search Google Scholar
    • Export Citation

  • Wang, B., R. Elsberry, Y. Wang, and L. Wu, 1998: Dynamics in the tropical cyclone motion: A review. Chinese J. Atmos. Sci., 22 , 535–547.

    • Search Google Scholar
    • Export Citation

  • Watanabe, M., 2004: Asian jet waveguide and a downstream extension of the North Atlantic Oscillation. J. Climate, 17 , 4674–4691.

  • Wu, L., and B. Wang, 2004: Assessing impacts of global warming on tropical cyclone tracks. J. Climate, 17 , 1686–1698.

  • Wu, M. C., W. L. Chang, and W. M. Leung, 2004: Impacts of El Niño–Southern Oscillation events on tropical cyclone landfalling activity in the western North Pacific. J. Climate, 17 , 1419–1428.

    • Search Google Scholar
    • Export Citation

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

    • Search Google Scholar
    • Export Citation
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