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Analysis of global climate model experiments to elucidate past and future changes in surface insolation and warming in China
Department of Environmental Sciences, Rutgers University, New Brunswick, New Jersey, USA
Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, New Jersey, USA
NASA Goddard Institute for Space Studies, New York, New York, USA
Department of Ecology, Evolution and Natural Resources, Rutgers University, New Brunswick, New Jersey, USA
Trends in climate variables and their interrelationships over China are examined using a combination of observations and global climate model simulations to elucidate the mechanism for producing an observed 1°C increase in surface temperature despite a significant decrease in surface insolation from 1950 to 2000. For the 21st century, the model simulations suggest that the downward trend in insolation is expected to continue until 2050, primarily forced by the prescribed atmospheric sulfate burden (IPCC SRES A1B). A continuous increase in surface temperature (3°C) and vapor pressure (1mb) is simulated during the 21st century. Our analysis suggests that both the past and the future warming are primarily caused by an increase in downward longwave radiation. This occurs, in part, as a result of both the lower and upper atmospheric water vapor feedbacks, triggered by the increase in anthropogenic greenhouse gases.
Received 3 August 2006; accepted 27 September 2006; published 31 October 2006.
Citation: (2006), Analysis of global climate model experiments to elucidate past and future changes in surface insolation and warming in China, Geophys. Res. Lett., 33, L20709, doi:10.1029/2006GL027778.
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