Atmospheric Particles and Climate: The Impact of Man’s Activities

Part of the Experientia Supplementum book series (EXS, volume 20)


The equilibrium temperature of the earth is maintained by a balance between the unreflected part of the incoming solar energy, which is absorbed by the earthatmosphere system, and the outgoing longwave radiation escaping from the earth to space. It has long been suspected that suspended atmospheric particles (aerosols) might affect this balance, primarily by affecting the albedo or reflectivity of the earth, thereby altering the amount of solar energy absorbed by the earth. In light of some recent evidence suggesting the existence of an increase in atmospheric particle concentrations (presumably related to man’s activities), the need for development of adequate numerical models to study this problem is apparent. Recent numerical models studying the effect of particles on climate are often based on multiple scattering radiative transfer calculations, and use global averages for particle concentrations and optical properties. By contrasting certain existing models, some major problems in modeling studies that attempt to answer the question of the effects of increased atmospheric particles on climate can be illustrated. It will also be apparent that another uncertainty in the results of such studies arises from a lack of adequate abserved input data on the geographic and vertical distributions of particle concentrations and their optical properties. Furthermore, a model that could realistically simulate the impact of increasing atmospheric particle concentration on climate must eventually include the simultaneous coupled effects of all the important atmospheric processes, such as fluid motions and cloud microphysics, in addition to the radiative transfer effects. Current modeling studies already do predict that increases in particle concentrations could have a significant effect on climate. Now, it remains for us to develop the kinds of refined models needed to verify or deny these predictions.


Outgoing Longwave Radiation Atmospheric Particle Aerosol Optical Thickness Aerosol Layer Aerosol Optical Property 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. [1]
    J. M. Mitchell, Jr., Quaternary Research 2, 436 (1972).CrossRefGoogle Scholar
  2. [2]
    Study of Man’s Impact on Climate (SMIC), Inadvertent Climate Modification (M.I.T. Press, Cambridge Mass. 1971 ).Google Scholar
  3. [3]
    Study of Critical Environmental Problems (SCEP), Man’s Impact on the Global Environment (M.I.T. Press, Cambridge Mass. 1970 ).Google Scholar
  4. [4]
    S. H. Schneider and W. W. Kellogg, The Chemical Basis for Climate Change, in: S. I. Rasool: Chemistry of the Lower Atmosphere, chap. 5 ( Plenum Press, New York, New York 1973.Google Scholar
  5. [5]
    S. F. Singer, Ed., Global Effects of Environmental Pollution ( Reidel Publishing Co., Dordrecht, Holland; Springer-Verlag, New York 1970 ).Google Scholar
  6. [6]
    S. Manabe and R. T. Wetherald, J. atmos. Sci. 24, 241 (1967).CrossRefGoogle Scholar
  7. [7]
    R. A. Mccormick and J. H. Ludwig, Science 156, 1358 (1967).CrossRefGoogle Scholar
  8. [8]
    S. I. Rasool and S. H. Schneider, Science 173, 138 (1971).CrossRefGoogle Scholar
  9. [9]
    G. Yamamoto and T. Tanaka, J. atmos. Sci. 24, 1405 (1972); also see chap. 8 of the SMIC Report [2]).Google Scholar
  10. [10]
    R. A. Bryson, Weatherwise 21, 56 (1968).CrossRefGoogle Scholar
  11. [11]
    R. J. Charlson and M. J. Pilat, J. appl. Met. 8, 1001 (1969).CrossRefGoogle Scholar
  12. [12]
    J. M. Mitchell, Jr., J. appl. Met. 10, 703 (1971).CrossRefGoogle Scholar
  13. [13]
    E. Guccione, Is Pollution a Problem? No, Breathe Easier, New York Times, p. 25 (28 August 1971 ).Google Scholar
  14. [14]
    L. Elterman, Appl. Opt. 3, 745 (1964).CrossRefGoogle Scholar
  15. [15]
    S. I. Rasool, Ed., Chemistry of the Lower Atmosphere ( Plenum Press, New York, New York 1973.Google Scholar
  16. [16]
    F. W. Went, Proc. nat. Acad. Sci. 46, 212 (1960).CrossRefGoogle Scholar
  17. [17]
    J.H. Ludwig, G. B. Morgan and T. B. Mcmullen, EOS, Trans. Am. geophys. Un. 51, 468 (1970), reprinted as chap. 25 in: W. H. Matthews, W. W. Kellogg and G. D. Robinson, Man’s Impact on the Climate (M.I.T. Press, Cambridge, Mass. 1971 ).Google Scholar
  18. [18]
    W. W. Kellogg, R. D. Cadle, E. R. Allen, A. L. Lazrus and E. A. Martell, Science 175, 587 (1972).CrossRefGoogle Scholar
  19. [19]
    M. I. Budyko, Tellus 21, 611 (1969).CrossRefGoogle Scholar
  20. [20]
    S. H. Schneider, J. appl. Met. 10, 840 (1971).CrossRefGoogle Scholar
  21. [21]
    J. London and T. Sasamori, Radiative Energy Budget of the Atmosphere, in: W. H. Matthews, W. W. Kellogg and G. D. Robinson, Man’s Impact on the Climate, (M.I.T. Press, Cambridge, Mass. 1971); also Space Res. XI, 639 (1971).Google Scholar
  22. [22]
    C. Junge, Atmospheric Chemistry and Radioactivity ( Academic Press, New York 1963 ).Google Scholar
  23. [23]
    D. S. Ensor, W. M. Porch, M. J. Pilat and R. J. Charlson, J. appl. Met. 10, 1303 (1971).CrossRefGoogle Scholar
  24. [24]
    R. Eiden, Appl. Opt. 10, 749 (1971).CrossRefGoogle Scholar
  25. [25]
    K. Fischer, Beitr. Phys. Atmos. 43, Band 244 (1970).Google Scholar
  26. [26]
    E. P. Shettle and J. A. Weinman, Transfer of Near-Ultraviolet Irradiantes Through Smog Over Los Angeles, in: Preprints of Papers; Conference on Air Pollution Meteorology ( American Meteorological Society, Boston, Mass. 1971 ), p. 121.Google Scholar
  27. [27]
    R. J. Charlson, H. Harrison and G. Witt, Science 175, 95 (1972).CrossRefGoogle Scholar
  28. [28]
    S. I. Rasool and S. H. Schnieder, Science 175, 96 (1972).Google Scholar
  29. [29]
    E. Lorenz, The Nature and Theory of the General Circulation of the Atmosphere ( World Meteorological Society, Geneva 1967 ).Google Scholar
  30. [30]
    S. H. Schneider, A Comparison of Some Recent Numerical Models of the Effects of Aerosols on the Global Climate (unpublished private communication to J. Murray Mitchell, Jr., 1971 ).Google Scholar
  31. [31]
    M. I. Budyko, Climate and Life (Hydrological Publishing House, Leningrad 1971); also see Ref. [19].Google Scholar
  32. [32]
    W. D. Sellers, J. appl. Met. 8, 392 (1969).CrossRefGoogle Scholar
  33. [33]
    S. H. Schneider and T. Gal-Chen, Numerical Experiments in Climate Stability, J. Geophys. Res. (to appear 1973 ).Google Scholar
  34. [34]
    W. L. Donn and M. Ewing, Met. Monogr. 8, 1004 (1968).Google Scholar
  35. [35]
    S. H. Schneider, J. atmos. Sci. 29, 1413 (1972).CrossRefGoogle Scholar

Copyright information

© Springer Basel AG 1974

Authors and Affiliations

  1. 1.National Center for Atmospheric ResearchBoulderUSA

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