caa a22 4500 605471347 CHVBK 20210128100332.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00382-014-2464-2 doi (NATIONALLICENCE)springer-10.1007/s00382-014-2464-2 Impact of aerosol radiative effects on 2000-2010 surface temperatures [Elektronische Daten] [A. Gettelman, D. Shindell, J. Lamarque] Aerosol radiative forcing from direct and indirect effects of aerosols is examined over the recent past (last 10-15 years) using updated sulfate aerosol emissions in two Earth System Models with very different surface temperature responses to aerosol forcing. The hypothesis is that aerosol forcing and in particular, the impact of indirect effects of aerosols on clouds (Aerosol-Cloud Interactions, or ACI), explains the recent ‘hiatus' in global mean surface temperature increases. Sulfate aerosol emissions increase globally from 2000 to 2005, and then decrease slightly to 2010. Thus the change in anthropogenic sulfate induced net global radiative forcing is small over the period. Regionally, there are statistically significant forcings that are similar in both models, and consistent with changes in simulated emissions and aerosol optical depth. Coupled model simulations are performed to look at impacts of the forcing on recent surface temperatures. Temperature response patterns in the models are similar, and reflect the regional radiative forcing. Pattern correlations indicate significant correlations between observed decadal surface temperature changes and simulated surface temperature changes from recent sulfate aerosol forcing in an equilibrium framework. Sulfate ACI might be a contributor to the spatial patterns of recent temperature forcing, but not to the global mean ‘hiatus' itself. Springer-Verlag Berlin Heidelberg, 2015 Climate nationallicence Aerosol nationallicence Forcing nationallicence Gettelman A. National Center for Atmospheric Research, Boulder, CO, USA aut Shindell D. Nicholas School of the Environment, Duke University, Durham, NC, USA aut Lamarque J. National Center for Atmospheric Research, Boulder, CO, USA aut Climate Dynamics Springer Berlin Heidelberg 45/7-8(2015-10-01), 2165-2179 0930-7575 45:7-8<2165 2015 45 382 https://doi.org/10.1007/s00382-014-2464-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00382-014-2464-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gettelman A. National Center for Atmospheric Research, Boulder, CO, USA aut NATIONALLICENCE 700 1- Shindell D. Nicholas School of the Environment, Duke University, Durham, NC, USA aut NATIONALLICENCE 700 1- Lamarque J. National Center for Atmospheric Research, Boulder, CO, USA aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 45/7-8(2015-10-01), 2165-2179 0930-7575 45:7-8<2165 2015 45 382