Potential impacts of Asian carbon aerosols on future US warming
Article first published online: 7 JUN 2012
©2012. American Geophysical Union. All Rights Reserved.
Geophysical Research Letters
Volume 39, Issue 11, June 2012
How to Cite
2012), Potential impacts of Asian carbon aerosols on future US warming, Geophys. Res. Lett., 39, L11703, doi:10.1029/2012GL051723., , , , and (
- Issue published online: 7 JUN 2012
- Article first published online: 7 JUN 2012
- Manuscript Accepted: 13 MAY 2012
- Manuscript Revised: 7 MAY 2012
- Manuscript Received: 16 MAR 2012
- carbon aerosol climate impact
 This study uses an atmosphere-ocean fully coupled climate model to investigate possible remote impacts of Asian carbonaceous aerosols on US climate change. We took a 21st century mitigation scenario as a reference, and carried out three sets of sensitivity experiments in which the prescribed carbonaceous aerosol concentrations over a selected Asian domain are increased by a factor of two, six, and ten respectively during the period of 2005–2024. The resulting enhancement of atmospheric solar absorption (only the direct effect of aerosols is included) over Asia induces tropospheric heating anomalies that force large-scale circulation changes which, averaged over the twenty-year period, add as much as an additional 0.4°C warming over the eastern US during winter and over most of the US during summer. Such remote impacts are confirmed by an atmosphere stand-alone experiment with specified heating anomalies over Asia that represent the direct effect of the carbon aerosols.