Editorial Type:
Article
Article Type:
Research Article

Maintenance of Summer Monsoon Circulations: A Planetary-Scale Perspective

Tsing-Chang Chen Atmospheric Science Program, Department of Geological and Atmospheric Sciences, Iowa State University, Ames, Iowa

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Print Publication:
15 Jun 2003
DOI:
https://doi.org/10.1175/1520-0442(2003)016<2022:MOSMCA>2.0.CO;2
Page(s):
2022–2037
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Abstract

The monsoon circulation, which is generally considered to be driven by the landmass–ocean thermal contrast, like a gigantic land–sea breeze circulation, exhibits a phase reversal in its vertical structure; a monsoon high aloft over a continental thermal low is juxtaposed with a midoceanic trough underlaid by an oceanic anticyclone. This classic monsoon circulation model is well matched by the monsoon circulation depicted with the observational data prior to the First Global Atmospheric Research Program (GARP) Global Experiment (FGGE). However, synthesizing findings of the global circulation portrayed with the post-FGGE data, it was found that some basic features of major monsoon circulations in Asia, North America, South America, and Australia differ from those of the classic monsoon circulation model. Therefore, a revision of the classic monsoon theory is suggested. With four different wave regimes selected to fit the horizontal dimensions of these monsoon circulations, basic features common to all four major monsoons are illustrated in terms of diagnostic analyses of the velocity potential maintenance equation (which relates diabatic heating and velocity potential) and the streamfunction budget (which links velocity potential and streamfunction) in these wave regimes. It is shown that a monsoon circulation is actually driven by the east–west differential heating and maintained dynamically by a balance between a vorticity source and advection. This dynamic balance is reflected by a spatial quadrature relationship between the monsoon divergent circulation and the monsoon high (low) at upper (lower) levels.

Corresponding author address: Tsing-Chang (Mike) Chen, Atmospheric Science Program, Department of Geological and Atmospheric Sciences, Iowa State University, 3010 Agronomy Hall, Ames, IA 50011. Email: tmchen@iastate.edu

Abstract

The monsoon circulation, which is generally considered to be driven by the landmass–ocean thermal contrast, like a gigantic land–sea breeze circulation, exhibits a phase reversal in its vertical structure; a monsoon high aloft over a continental thermal low is juxtaposed with a midoceanic trough underlaid by an oceanic anticyclone. This classic monsoon circulation model is well matched by the monsoon circulation depicted with the observational data prior to the First Global Atmospheric Research Program (GARP) Global Experiment (FGGE). However, synthesizing findings of the global circulation portrayed with the post-FGGE data, it was found that some basic features of major monsoon circulations in Asia, North America, South America, and Australia differ from those of the classic monsoon circulation model. Therefore, a revision of the classic monsoon theory is suggested. With four different wave regimes selected to fit the horizontal dimensions of these monsoon circulations, basic features common to all four major monsoons are illustrated in terms of diagnostic analyses of the velocity potential maintenance equation (which relates diabatic heating and velocity potential) and the streamfunction budget (which links velocity potential and streamfunction) in these wave regimes. It is shown that a monsoon circulation is actually driven by the east–west differential heating and maintained dynamically by a balance between a vorticity source and advection. This dynamic balance is reflected by a spatial quadrature relationship between the monsoon divergent circulation and the monsoon high (low) at upper (lower) levels.

Corresponding author address: Tsing-Chang (Mike) Chen, Atmospheric Science Program, Department of Geological and Atmospheric Sciences, Iowa State University, 3010 Agronomy Hall, Ames, IA 50011. Email: tmchen@iastate.edu

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  • Aceituno, P., 1988: On the function of the Southern Oscillation in the South American sector. Mon. Wea. Rev., 116 , 505–525.

  • Alan, R. J., 1983: Monsoon and teleconnection variability over Australasia during the Southern Hemisphere summers of 1973–77. Mon. Wea. Rev., 111 , 113–142.

    • Search Google Scholar
    • Export Citation

  • Andrade Jr., E. R., and W. D. Sellers, 1988: El Niño and its effect on precipitation in Arizona and western New Mexico. Int. J. Climatol., 8 , 403–410.

    • Search Google Scholar
    • Export Citation

  • Barlow, M., S. Nigam, and E. H. Berbery, 1998: Evolution of the North American monsoon system. J. Climate, 11 , 2238–2257.

  • Carleton, A. M., and D. A. Carpenter, 1990: Mechanism of interannual variability of the southwest United States summer rainfall maximum. J. Climate, 3 , 999–1015.

    • Search Google Scholar
    • Export Citation

  • Chen, T-C., and W. E. Baker, 1986: Global diabatic heating during SOP-1 and SOP-2. Mon. Wea. Rev., 114 , 2776–2790.

  • Chen, T-C., and M-C. Yen, 1991a: A study of the diabatic heating associated with the Madden–Julian oscillation. J. Geophys. Res., 96 , 13163–13177.

    • Search Google Scholar
    • Export Citation

  • Chen, T-C., and M-C. Yen, 1991b: Interaction between intraseasonal oscillations of the midlatitude flow and tropical convection during 1979 northern summer: The Pacific Ocean. J. Climate, 4 , 653–671.

    • Search Google Scholar
    • Export Citation

  • Chen, T-C., and M-C. Yen, 1994: Interannual variation of the Indian monsoon simulated by the NCAR Community Climate Model: Effect of the tropical Pacific SST. J. Climate, 7 , 1403–1415.

    • Search Google Scholar
    • Export Citation

  • Chen, T-C., M-C. Yen, and H. van Loon, 1989: The effect of the divergent circulation on some aspects of the 1978/79 Southern Hemisphere monsoon. J. Climate, 2 , 1270–1288.

    • Search Google Scholar
    • Export Citation

  • Chen, T-C., S-P. Weng, and S. Schubert, 1999: Maintenance of austral summertime upper-tropospheric circulation over tropical South America: The Bolivian high–Nordeste low system. J. Atmos. Sci., 56 , 2081–2100.

    • Search Google Scholar
    • Export Citation

  • Drosdowsky, W., 1996: Variability of the Australian summer monsoon of Darwin: 1957–1992. J. Climate, 9 , 85–96.

  • Giannini, A., A. Y. Kushnir, and M. A. Cane, 2000: Interannual variability of Caribbean rainfall, ENSO, and the Atlantic Ocean. J. Climate, 13 , 297–311.

    • Search Google Scholar
    • Export Citation

  • Gill, A. E., 1980: Some simple solutions for heat induced tropical circulation. Quart. J. Roy. Meteor. Soc., 106 , 447–462.

  • Gunn, B. W., J. L. McBride, G. Holland, T. D. Keenan, N. E. Davidson, and H. H. Hendon, 1989: The Australian summer monsoon circulation during AMEX Phase II. Mon. Wea. Rev., 117 , 2554–2574.

    • Search Google Scholar
    • Export Citation

  • Higgins, R. W., and W. Shi, 2000: Dominant factors responsible for interannual variability of the summer monsoon in the Southwestern United States. J. Climate, 13 , 759–776.

    • Search Google Scholar
    • Export Citation

  • Higgins, R. W., Y. Yao, and X. L. Wang, 1997: Influence of the North American monsoon system on the U.S. summer precipitation. J. Climate, 10 , 2600–2622.

    • Search Google Scholar
    • Export Citation

  • Higgins, R. W., K. C. Mo, and Y. Yao, 1998: Interannual variability of the United States summer precipitation regime with emphasis on the southwestern monsoon. J. Climate, 11 , 2582–2606.

    • Search Google Scholar
    • Export Citation

  • Holland, G. J., 1986: Interannual variability of the Australian summer monsoon at Darwin: 1952–82. Mon. Wea. Rev., 114 , 594–604.

  • Holton, J. R., 1992: Introduction to Dynamic Meteorology. 3d ed. Academic Press, 511 pp.

  • Holton, J. R., and D. E. Colton, 1972: A diagnostic study of the vorticity balance at 200 mb in the tropics during the northern summer. J. Atmos. Sci., 29 , 1124–1128.

    • Search Google Scholar
    • Export Citation

  • Hoskins, B. J., 1996: On the existence and strength of the summer subtropical anticyclones. Bull. Amer. Meteor. Soc., 77 , 1287–1292.

  • Hoskins, B. J., and M. J. Rodwell, 1995: A model of the Asian summer monsoon. Part I: The global scale. J. Atmos. Sci., 52 , 1329–1340.

    • Search Google Scholar
    • Export Citation

  • Hoskins, B. J., H. H. Hsu, I. N. James, M. Masutani, P. D. Sardeshmukh, and G. H. White, 1989: Diagnostics of the global atmospheric circulation based on ECMWF analyses 1979–1989. WMO/Tech. Doc. 326, WCRP-27, World Meteorological Organization, 217 pp.

    • Search Google Scholar
    • Export Citation

  • Ju, T., and J. M. Slingo, 1995: The Asian summer monsoon and ENSO. Quart. J. Roy. Meteor. Soc., 121 , 1133–1168.

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

  • Kousky, V. E., and M. Y. Kayano, 1994: Principal models of outgoing longwave radiation and 250-mb circulation for the South American sector. J. Climate, 7 , 1131–1143.

    • Search Google Scholar
    • Export Citation

  • Krishnamurti, T. N., 1971a: Observational study of the tropical upper tropospheric motion field during the Northern Hemisphere summer. J. Appl. Meteor., 10 , 1066–1096.

    • Search Google Scholar
    • Export Citation

  • Krishnamurti, T. N., 1971b: Tropical east–west circulations during the northern summer. J. Atmos. Sci., 28 , 1342–1347.

  • Krishnamurti, T. N., M. Kanamitsu, W. J. Ross, and J. D. Lee, 1973: Tropical east–west circulations during the northern winter. J. Atmos. Sci., 30 , 780–787.

    • Search Google Scholar
    • Export Citation

  • Lenters, J. D., and K. H. Cook, 1997: On the origin of the Bolivian high and related circulation features of the South American climate. J. Atmos. Sci., 54 , 656–677.

    • Search Google Scholar
    • Export Citation

  • McBride, J. L., 1987: The Australian summer monsoon. Monsoon Meteorology, C.-P. Chang and T. N. Krishnamurti, Eds., Oxford University Press, 203–231.

    • Search Google Scholar
    • Export Citation

  • McBride, J. L., 1998: Indonesia, Papua New Guinea, and tropical Australia: The Southern Hemisphere monsoon. Meteorology of the Southern Hemisphere, Meteor. Monogr., No. 27, Amer. Meteor. Soc., 89–99.

    • Search Google Scholar
    • Export Citation

  • McBride, J. L., and N. Nicholls, 1983: Seasonal relationships between Australian rainfall and the Southern Oscillation. Mon. Wea. Rev., 111 , 1998–2004.

    • Search Google Scholar
    • Export Citation

  • Meehl, G. A., 1994: Influence of the land surface in the Asian summer monsoon: External conditions versus internal feedback. J. Climate, 7 , 1033–1049.

    • Search Google Scholar
    • Export Citation

  • Palmer, T. N., C. Brankovic, P. Viberbo, and M. J. Miller, 1992: Interannual variations of summer monsoons. J. Climate, 5 , 399–417.

  • Rodwell, M. J., and B. J. Hoskins, 1996: Monsoons and the dynamics of deserts. Quart. J. Roy. Meteor. Soc., 122 , 1385–1404.

  • Ropelewski, C. F., and M. S. Halpert, 1987: Global and regional scale precipitation patterns associated with the El Niño/Southern Oscillation. Mon. Wea. Rev., 115 , 1606–1626.

    • Search Google Scholar
    • Export Citation

  • Sanders, F., 1984: Quasi-geostrophic diagnosis of the monsoon depression of 5–8 July 1979. J. Atmos. Sci., 41 , 538–552.

  • Satyamurty, P. C., C. A. Nobre, and P. L. Silva Dias, 1998: South America. Meteorology of the Southern Hemisphere, Meteor. Monogr., No. 49, Amer. Meteor. Soc., 119–140.

    • Search Google Scholar
    • Export Citation

  • Schubert, S. D., C-K. Park, W. Higgins, S. Moorthi, and M. Suarez, 1990: An Atlas of ECMWF Analyses: Part I—First Moment Quantities. NASA Tech. Memo. 100747, Goddard Space Flight Center, Greenbelt, MD, 258 pp.

    • Search Google Scholar
    • Export Citation

  • Schubert, S. D., R. B. Rood, and J. Pfaendtner, 1993: An assimilated dataset for earth science applications. Bull. Amer. Meteor. Soc., 74 , 2331–2342.

    • Search Google Scholar
    • Export Citation

  • Shukla, J., 1987: Interannual variability of monsoons. Monsoons, J. S. Fein and P. L. Stephens, Eds., John Wiley, 399–464.

  • Sumi, A., and T. Murakami, 1981: Large scale aspects of the 1978–79 winter circulation over the greater WMONEX region. Part I: Monthly and season mean fields. J. Meteor. Soc. Japan, 59 , 625–645.

    • Search Google Scholar
    • Export Citation

  • Tang, M., and E. R. Reiter, 1984: Plateau monsoons of the Northern Hemisphere: A comparison between North America and Tibet. Mon. Wea. Rev., 112 , 617–637.

    • Search Google Scholar
    • Export Citation

  • van Heerden, J., and J. J. Taljaard, 1998: Africa and surrounding waters. Meteorology of the Southern Hemisphere, Meteor. Monogr., No. 49, Amer. Meteor. Soc., 141–174.

    • Search Google Scholar
    • Export Citation

  • Vernekar, A. D., J. Zhou, and J. Shukla, 1995: The effect of Eurasian snow cover on the Indian monsoon. J. Climate, 8 , 248–266.

  • Virji, H., 1981: A preliminary study of summertime tropospheric circulation patterns over South America estimated from cloud winds. Mon. Wea. Rev., 109 , 599–610.

    • Search Google Scholar
    • Export Citation

  • Virji, H., 1982: An estimate of the summertime tropospheric vorticity budget over South America. Mon. Wea. Rev., 110 , 217–224.

  • Wallace, J. M., and P. V. Hobbs, 1977: Atmospheric Science: An Introductory Survey. Academic Press, 467 pp.

  • WCRP, 1998: CLIVAR initial implementation plan. WMO/Tech. Doc. 869, WCRP 103, World Climate Research Program, World Meteorological Organization, 314 pp.

    • Search Google Scholar
    • Export Citation

  • White, G. H., 1982: An observational study of the Northern Hemisphere extratropical summertime general circulation. J. Atmos. Sci., 39 , 24–40.

    • Search Google Scholar
    • Export Citation

  • Xie, P., and P. A. Arkin, 1997: Global precipitation: A 17-year monthly analysis based upon gauge observations, satellite estimates, and mineral model outputs. Bull. Amer. Meteor. Soc., 78 , 2539–2558.

    • Search Google Scholar
    • Export Citation

  • Yu, B., and J. M. Wallace, 2000: The principal mode of interannual variability of the North American monsoon system. J. Climate, 13 , 2794–2800.

    • Search Google Scholar
    • Export Citation
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