Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 13, issue 8
Articles | Volume 13, issue 8
https://doi.org/10.5194/gmd-13-3465-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-13-3465-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 13, issue 8
Development and technical paper
 | 
04 Aug 2020
Development and technical paper |  | 04 Aug 2020

On the increased climate sensitivity in the EC-Earth model from CMIP5 to CMIP6

Klaus Wyser, Twan van Noije, Shuting Yang, Jost von Hardenberg, Declan O'Donnell, and Ralf Döscher

Data sets

Global mean TAS and net TOA flux in CMIP5 piControl and abrupt4xCO2 experiments using EC-Earth model S. Yang https://doi.org/10.5281/zenodo.3459914

Sensitivity experiments with EC-Earth3-Veg at low resolution K. Wyser https://doi.org/10.5281/zenodo.3454079

EC-Earth3-Veg model output prepared forCMIP6 CMIP abrupt-4xCO2, Version 20190702 EC-Earth Consortium https://doi.org/10.22033/ESGF/CMIP6.4524

EC-Earth3-Veg model output prepared forCMIP6 CMIP piControl, Version 20190619 EC-Earth Consortium https://doi.org/10.22033/ESGF/CMIP6.4848

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Short summary
The EC-Earth model used for CMIP6 is found to have a higher equilibrium climate sensitivity (ECS) than its predecessor used for CMIP5. In a series of sensitivity experiments, we investigate which model updates since CMIP5 have contributed to the increase in ECS. The main reason for the higher sensitivity in the EC-Earth model is the improved representation of the aerosol–radiation and aerosol–cloud interactions.
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