Articles | Volume 19, issue 2
https://doi.org/10.5194/gmd-19-661-2026
https://doi.org/10.5194/gmd-19-661-2026
Model description paper
 | 
22 Jan 2026
Model description paper |  | 22 Jan 2026

IPSL-Perm-LandN: improving the IPSL Earth System Model to represent permafrost carbon-nitrogen interactions

Rémi Gaillard, Patricia Cadule, Philippe Peylin, Nicolas Vuichard, and Bertrand Guenet

Data sets

IPSL-Perm-LandN: improving the IPSL Earth System Model to represent permafrost carbon-nitrogen interactions Rémi Gaillard et al. https://doi.org/10.5281/zenodo.16739216

Model code and software

IPSL-Perm-LandN: improving the IPSL Earth System Model to represent permafrost carbon-nitrogen interactions Rémi Gaillard et al. https://doi.org/10.5281/zenodo.16739216

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Short summary
The release of carbon from thawing permafrost soils could amplify future climate warming. However, this feedback is highly uncertain because most Earth system models (ESM) do not represent permafrost carbon. We have improved the Institut Pierre-Simon Laplace ESM by including permafrost physical, carbon and nitrogen processes to better represent Arctic ecosystems. The model more accurately represents past and present permafrost physics and biogeochemistry, paving the way for future projections.
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