This work was only made possible with the efforts of the team who developed and continue to support the climateprediction.net project, in particular, Myles Allen, David Stainforth, David Frame, Tolu Aina, Carl Christensen, and Neil Massey, who were instrumental in preparing the particular simulations used in this study, as well as the members of the public who donated their idle computing time to the project. Thanks to Gerald Meehl, Richard Neale, Charles Jackson, and William Ingram for their helpful input and discussions and for valuable input from anonymous reviewers. We acknowledge the modeling groups, the Program for Climate Model Diagnosis and Intercomparison (PCMDI) and the WCRP’s Working Group on Coupled Modelling (WGCM), for their roles in making available the WCRP CMIP3 multimodel dataset. Support of this dataset is provided by the Office of Science, U.S. Department of Energy.
Boville, B. A., , P. J. Rasch, , J. J. Hack, , and J. R. McCaa, 2006: Representation of clouds and precipitation processes in the Community Atmosphere Model version 3 (CAM3). J. Climate, 19 , 2184–2198.
Cess, R. D., , and G. L. Potter, 1988: A methodology for understanding and intercomparing atmospheric climate feedback processes in general circulation models. J. Geophys. Res., 93 , 8305–8314.
Gent, P., , S. Yeager, , R. Neale, , S. Levis, , and D. Bailey, 2009: Improvements in a half degree atmosphere/land version of the CCSM. Climate Dyn., 34 , 819–833. doi:10.1007/s00382-009-0614-8.
Gregory, D., , and P. R. Rowntree, 1990: A mass flux convection scheme with representation of cloud ensemble characteristics and stability-dependent closure. Mon. Wea. Rev., 118 , 1483–1506.
Hack, J. J., 1994: Parameterization of moist convection in the National Center for Atmospheric Research community climate model (CCM2). J. Geophys. Res., 99 , 5551–5568.
Heymsfield, A., 1977: Precipitation development in stratiform ice clouds: A microphysical and dynamical study. J. Atmos. Sci., 34 , 367–381.
Jackson, C., , M. Sen, , G. Huerta, , Y. Deng, , and K. Bowman, 2008: Error reduction and convergence in climate prediction. J. Climate, 21 , 6698–6709.
Joshi, M. M., , M. J. Webb, , A. C. Maycock, , and M. Collins, 2010: Stratospheric water vapour and high climate sensitivity in a version of the HadSM3 climate model. Atmos. Chem. Phys. Discuss., 10 , 6241–6255. doi:10.5194/acpd-10-6241-2010.
Knight, C. G., and Coauthors, 2007: Association of parameter, software, and hardware variation with large-scale behavior across 57,000 climate models. Proc. Natl. Acad. Sci. USA, 104 , 12259–12264.
Knutti, R., , G. A. Meehl, , M. R. Allen, , and D. A. Stainforth, 2006: Constraining climate sensitivity from the seasonal cycle in surface temperature. J. Climate, 19 , 4224–4233.
Knutti, R., and Coauthors, 2008: A review of uncertainties in global temperature projections over the twenty-first century. J. Climate, 21 , 2651–2663.
Murphy, J. M., , D. M. H. Sexton, , D. N. Barnett, , G. S. Jones, , M. J. Webb, , M. Collins, , and D. A. Stainforth, 2004: Quantification of modelling uncertainties in a large ensemble of climate change simulations. Nature, 430 , 768–772.
Murphy, J. M., , B. B. B. Booth, , M. Collins, , G. R. Harris, , D. M. H. Sexton, , and M. J. Webb, 2007: A methodology for probabilistic predictions of regional climate change from perturbed physics ensembles. Philos. Trans. Roy. Soc. London, A365 , 1993.
Neale, R., , J. Richter, , and M. Jochum, 2008: The impact of convection on ENSO: From a delayed oscillator to a series of events. J. Climate, 21 , 5904–5924.
Oleson, K. W., and Coauthors, 2008: Improvements to the Community Land Model and their impact on the hydrological cycle. J. Geophys Res., 113 , G01021. doi:10.1029/2007JG000563.
Piani, C., , D. J. Frame, , D. A. Stainforth, , and M. R. Allen, 2005: Constraints on climate change from a multi-thousand member ensemble of simulations. Geophys. Res. Lett., 32 , L23825. doi:10.1029/2005GL024452.
Raymond, D., , and A. Blyth, 1992: Extension of the stochastic mixing model to cumulonimbus clouds. J. Atmos. Sci., 49 , 1968–1983.
Richter, J., , and P. Rasch, 2008: Effects of convective momentum transport on the atmospheric circulation in the Community Atmosphere Model, version 3. J. Climate, 21 , 1487–1499.
Sanderson, B., and Coauthors, 2008a: Constraints on model response to greenhouse gas forcing and the role of subgrid-scale processes. J. Climate, 21 , 2384–2400.
Sanderson, B., , C. Piani, , W. Ingram, , D. Stone, , and M. Allen, 2008b: Towards constraining climate sensitivity by linear analysis of feedback patterns in thousands of perturbed-physics GCM simulations. Climate Dyn., 30 , 175–190.
Sanderson, B., , K. Shell, , and W. Ingram, 2009: Climate feedbacks determined using radiative kernels in a multi-thousand member ensemble of AOGCMs. Climate Dyn., 35 , 1219–1236.
Stainforth, D. A., and Coauthors, 2005: Uncertainty in predictions of the climate response to rising levels of greenhouse gases. Nature, 433 , 403–406.
Stöckli, R., and Coauthors, 2008: Use of FLUXNET in the Community Land Model development. J. Geophys Res., 113 , G01025. doi:10.1029/2007JG000562.
Trenberth, K. E., , and J. T. Fasullo, 2009: Global warming due to increasing absorbed solar radiation. Geophys. Res. Lett., 36 , L07706. doi:10.1029/2009GL037527.
Webb, M. J., , C. Senior, , S. Bony, , and J.-J. Morcrette, 2001: Combining ERBE and ISCCP data to assess clouds in the Hadley Centre, ECMWF and LMD atmospheric climate models. Climate Dyn., 17 , 905–922.
Webb, M. J., and Coauthors, 2006: On the contribution of local feedback mechanisms to the range of climate sensitivity in two GCM ensembles. Climate Dyn., 27 , 17–38.
Wu, X., , L. Deng, , X. Song, , and G. Zhang, 2007: Coupling of convective momentum transport with convective heating in global climate simulations. J. Atmos. Sci., 64 , 1334–1349.
Yokohata, T., , M. J. Webb, , M. Collins, , K. D. Williams, , M. Yoshimori, , J. C. Hargreaves, , and J. D. Annan, 2010: Structural similarities and differences in climate responses to CO2 increase between two perturbed physics ensembles. J. Climate, 23 , 1392–1410.
Zhang, G. J., , and N. A. McFarlane, 1995: Sensitivity of climate simulations to the parameterization of cumulus convection in the Canadian Climate Centre general circulation model. Atmos.–Ocean, 33 , 407–446.