Articles | Volume 16, issue 5
https://doi.org/10.5194/esd-16-1671-2025
https://doi.org/10.5194/esd-16-1671-2025
Research article
 | 
10 Oct 2025
Research article |  | 10 Oct 2025

Sensitivity of winter Arctic amplification in NorESM2

Lise Seland Graff, Jerry Tjiputra, Ada Gjermundsen, Andreas Born, Jens Boldingh Debernard, Heiko Goelzer, Yan-Chun He, Petra Margaretha Langebroek, Aleksi Nummelin, Dirk Olivié, Øyvind Seland, Trude Storelvmo, Mats Bentsen, Chuncheng Guo, Andrea Rosendahl, Dandan Tao, Thomas Toniazzo, Camille Li, Stephen Outten, and Michael Schulz

Model code and software

NorESM2 source code as used for CMIP6 simulations (includes additional experimental setups, extended model documentation, automated inputdata download, restructuring of BLOM/iHAMOCC input data) Ø. Seland et al. https://doi.org/10.5281/zenodo.3905091

Download
Short summary
The magnitude of future Arctic amplification is highly uncertain. Using the Norwegian Earth System Model, we explore the effect of improving the representation of clouds, ocean eddies, the Greenland ice sheet, sea ice, and ozone on the projected Arctic winter warming in a coordinated experiment set. These improvements all lead to enhanced projected Arctic warming, with the largest changes found in the sea ice retreat regions and the largest uncertainty found on the Atlantic side.
Share
Altmetrics
Final-revised paper
Preprint