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Science 4 August 1989:
Vol. 245. no. 4917, pp. 513 - 516
DOI: 10.1126/science.245.4917.513
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Articles
Interpretation of Cloud-Climate Feedback as Produced by 14 Atmospheric General Circulation Models
R. D. CESS 1,
G. L. POTTER 2,
J. P. BLANCHET 3,
G. J. BOER 3,
S. J. GHAN 2,
J. T. KIEHL 4,
H. LE TREUT 5,
Z.-X. LI 5,
X.-Z. LIANG 6,
J. F. B. MITCHELL 7,
J.-J. MORCRETTE 8,
D. A. RANDALL 9,
M. R. RICHES 10,
E. ROECKNER 11,
U. SCHLESE 11,
A. SLINGO 4,
K. E. TAYLOR 2,
W. M. WASHINGTON 4,
R. T. WETHERALD 12, and
I. YAGAI 13
1 Institute for Atmospheric Sciences, State University of New York, Stony Brook, NY 11794.
2 Lawrence Livermore National Laboratory, Livermore, CA 94550.
3 Canadian Climate Centre, Downsview, Ontario M3H 574, Canada.
4 National Center for Atmospheric Research, Boulder, CO 80307.
5 Laboratoire de Météorologie Dynamique, 24 Rue Lhomond, 75231 Paris Cédex 05, France.
6 Institute of Atmospheric Physics, Beijing, China.
7 United Kingdom Meteorological Office, Bracknell, Berkshire RG12 25, England.
8 European Centre for Medium-Range Weather Forecasts, Reading, Berkshire RG2 9AX, England.
9 Colorado State University, Fort Collins, CO 80523.
10 Department of Energy, Washington, DC 20545.
11 University of Hamburg, Bundesstrasse 55, D2000, Hamburg 13, Federal Republic of Germany.
12 Geophysical Fluid Dynamics Laboratory Princeton University, Princeton, NJ 08540.
13 Meteorological Research Institute of Japan, Ibaraki-Ken, 305 Japan.
Understanding the cause of differences among general circulation model projections of carbon dioxide-induced climatic change is a necessary step toward improving the models. An intercomparison of 14 atmospheric general circulation models, for which sea surface temperature perturbations were used as a surrogate climate change, showed that there was a roughly threefold variation in global climate sensitivity. Most of this variation is attributable to differences in the models' depictions of cloud-climate feedback, a result that emphasizes the need for improvements in the treatment of clouds in these models if they are ultimately to be used as climatic predictors.
Submitted on March 10, 1989
Accepted on June 20, 1989
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