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

These files are associated with an article submitted to Geoscientific Model Development with reference egusphere-2025-3656 (IPSL-Perm-LandN: improving the IPSL Earth System Model to represent permafrost carbon-nitrogen interactions). It contains the code of the IPSL-Perm-LandN model and the model outputs (monthly) for the three ensemble members of the historical simulation (r1, r2 and r3 for the period 1850-2014). Contact: Rémi Gaillard ([e-mail]).