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

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Science  21 May 1993:
Vol. 260, Issue 5111, pp. 1101-1104
DOI: 10.1126/science.260.5111.1101


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.