Supplementary information
From the following article:
Uncertainty in predictions of the climate response to rising levels of greenhouse gases
D. A. Stainforth, T. Aina, C. Christensen, M. Collins, N. Faull, D. J. Frame, J. A. Kettleborough, S. Knight, A. Martin, J. M. Murphy, C. Piani, D. Sexton, L. A. Smith, R. A. Spicer, A. J. Thorpe and M. R. Allen
Nature 433, 403-406(27 January 2005)
doi:10.1038/nature03301
Supplementary Discussion
Discussion of the PC based model and how the control climates of different model versions compare with observations. Also, discussion of the mechanism which can lead to unphysical cooling in a model with a mixed layer ocean. Finally, some comments on the sensitivity of results to the choice of perturbations.
Supplementary Figure Legends
Legends for the supplementary figures.
Supplementary Figure 1
Comparison of annual mean temperature and precipitation fields with observations for: i) the super computer version of HadSM3, ii) the unperturbed climateprediction.net model version, iii) a low sensitivity model version, and iv) a high sensitivity model version.
Supplementary Figure 2
The difference in annual mean surface temperature between control and calibration phases for a stable and an unstable simulation; the latter exhibiting the cooling problem described in the supplementary discussion.
Supplementary Figure 3
Temperature and temperature anomaly fields from a simulation exhibiting the cooling problem in the double CO2 phase.
Supplementary Figure 4
Further exploration of the sensitivity of the simulated climate sensitivity distribution to the choice of parameter perturbations.
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