Robert Colman

TL;DR: In this paper, a review of recent observational, numerical, and theoretical studies of climate feedbacks is presented, showing that there has been progress since the Third Assessment Report of the Intergovernmental Panel on Climate Change in (i) the understanding of the physical mechanisms involved in these feedbacks, (ii) the interpretation of intermodel differences in global estimates of the feedbacks associated with water vapor, lapse rate, clouds, snow, and sea ice, and (iii) the development of methodologies of evaluation of these inputs using observations.

TL;DR: The authors applied global and local feedback analysis techniques to two ensembles of mixed layer equilibrium CO2 doubling climate change experiments, from the CFMIP (Cloud Feedback Model Intercom-parison Project) and QUMP (Quantifying Uncertainty in Model Predictions) projects.

TL;DR: In this paper, the authors describe the behavior of 23 dynamical ocean-atmosphere models, in the context of comparison with observations in a common framework, with respect to tropical sea surface temperature (SST), surface wind stress and upper ocean vertically averaged temperature (VAT).

TL;DR: In this article, a comparison of water vapour, cloud, albedo and lapse rate feedbacks taken from published results of 'offline' feedback calculations for general circulation models (GCMs) with mixed layer oceans performing 2 × CO2 and solar perturbation experiments is performed.

TL;DR: The authors compared the climate sensitivity of 19 atmospheric general circulation models and found a roughly threefold variation among the models; most of this variation was attributed to differences in the models' depictions of cloud feedback.