On the Use of Cloud Forcing to Estimate Cloud Feedback
Brian J. Soden, Anthony J. Broccoli, Richard S. Hemler
Abstract
Open-access reader
Brian J. Soden, Anthony J. Broccoli, Richard S. Hemler
Abstract
Open-access reader
Uncertainty in cloud feedback is the leading cause of discrepancy in model predictions of climate change. The use of observed or model-simulated radiative fluxes to diagnose the effect of clouds on climate sensitivity requires an accurate understanding of the distinction between a change in cloud radiative forcing and a cloud feedback. This study compares simulations from different versions of the GFDL Atmospheric Model 2 (AM2) that have widely varying strengths of cloud feedback to illustrate the differences between the two and highlight the potential for changes in cloud radiative forcing to be misinterpreted.
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Uncertainty in cloud feedback is the leading cause of discrepancy in model predictions of climate change. The use of observed or model-simulated radiative fluxes to diagnose the effect of clouds on climate sensitivity requires an accurate understanding of the distinction between a change in cloud radiative forcing and a cloud feedback. This study compares simulations from different versions of the GFDL Atmospheric Model 2 (AM2) that have widely varying strengths of cloud feedback to illustrate the differences between the two and highlight the potential for changes in cloud radiative forcing to be misinterpreted.
Key concepts: Cloud feedback, Cloud forcing, Cloud computing, Forcing (mathematics), Radiative forcing, Climate sensitivity, Radiative transfer, Environmental science