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Science 21 May 1993:
Vol. 260. no. 5111, pp. 1101 - 1104
DOI: 10.1126/science.260.5111.1101
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Articles

South Asian Summer Monsoon Variability in a Model with Doubled Atmospheric Carbon Dioxide Concentration

Gerald A. Meehl 1 and Warren M. Washington 1

1 National Center for Atmospheric Research, Boulder, CO 80307—3000

Doubled atmospheric carbon dioxide concentration in a global coupled ocean-atmosphere climate model produced increased surface temperatures and evaporation and greater mean precipitation in the south Asian summer monsoon region. As a partial consequence, interannual variability of area-averaged monsoon rainfall was enhanced. Consistent with the climate sensitivity results from the model, observations showed a trend of increased interannual variability of Indian monsoon precipitation associated with warmer land and ocean temperatures in the monsoon region.

Submitted on November 6, 1992
Accepted on March 4, 1993


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