Articles | Volume 17, issue 4
https://doi.org/10.5194/gmd-17-1585-2024
https://doi.org/10.5194/gmd-17-1585-2024
Model experiment description paper
 | 
22 Feb 2024
Model experiment description paper |  | 22 Feb 2024

New model ensemble reveals how forcing uncertainty and model structure alter climate simulated across CMIP generations of the Community Earth System Model

Marika M. Holland, Cecile Hannay, John Fasullo, Alexandra Jahn, Jennifer E. Kay, Michael Mills, Isla R. Simpson, William Wieder, Peter Lawrence, Erik Kluzek, and David Bailey

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Latest update: 20 Nov 2024
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Short summary
Climate evolves in response to changing forcings, as prescribed in simulations. Models and forcings are updated over time to reflect new understanding. This makes it difficult to attribute simulation differences to either model or forcing changes. Here we present new simulations which enable the separation of model structure and forcing influence between two widely used simulation sets. Results indicate a strong influence of aerosol emission uncertainty on historical climate.