In this study, we examine the time evolution of the relative contribution of sulfate aerosols and greenhouse gases to anthropogenic climate change. We use the new IPSL-CM4 coupled climate model for which the first indirect effect of sulfate aerosols has been calibrated using
POLDER satellite data. For the recent historical period the sulfate aerosols play a key role on the temperature increase with a cooling effect of 0.5 K, to be compared to the 1.4 K warming due to greenhouse gas increase. In contrast, the projected temperature change for the 21st century is
remarkably independent of the effects of anthropogenic sulfate aerosols for the SRES-A2 scenario. Those results are interpreted comparing the different radiative forcings, and can be extended to other scenarios. We also highlight that the first indirect effect of aerosol strongly depends on the land surface model by changing the cloud cover.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:13970 |
| Date | January 2005 |
| Creators | Dufresne, Jean-Louis, Quaas, Johannes, Boucher, Olivier, Denvil, Sébastien, Fairhead, Laurent |
| Contributors | Laboratoire de Météorologie Dynamique, Max-Planck-Institut fürr Meteorologie, Laboratoire d’Optique Atmosphérique, Met Office, Institut Pierre Simon Laplace |
| Publisher | Wiley |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Source | Geophysical research letters (2005), 32, L21703 |
| Rights | info:eu-repo/semantics/openAccess |
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