Greenhouse forcing outweighs decreasing solar radiation driving rapid temperature rise over land
Article first published online: 25 NOV 2004
Copyright 2004 by the American Geophysical Union.
Geophysical Research Letters
Volume 31, Issue 22, November 2004
How to Cite
2004), Greenhouse forcing outweighs decreasing solar radiation driving rapid temperature rise over land, Geophys. Res. Lett., 31, L22208, doi:10.1029/2004GL020937., and (
- Issue published online: 25 NOV 2004
- Article first published online: 25 NOV 2004
- Manuscript Accepted: 25 OCT 2004
- Manuscript Revised: 1 SEP 2004
- Manuscript Received: 6 JUL 2004
 Since 1988, surface temperature over land in Europe increased three times faster than the northern hemisphere average. Here we contrast surface climatic and radiative parameters measured in central Europe over different time periods, including the extreme summer 2003, to pinpoint the role of individual radiative forcings in temperature increases. Interestingly, surface solar radiation rather decreases since 1981. Also, on an annual basis no net radiative cooling or warming is observed under changing cloud amounts. However, high correlation (rT = 0.86) to increasing temperature is found with total heating radiation at the surface, and very high correlation (rT = 0.98) with cloud-free longwave downward radiation. Preponderance of longwave downward radiative forcing suggests rapidly increasing greenhouse warming, which outweighs the decreasing solar radiation measured at the surface and drives rapid temperature increases over land.