Version 3.0.2 of the Crocus snowpack model

Lafaysse, Matthieu; Dumont, Marie; De Fleurian, Basile; Fructus, Mathieu; Nheili, Rafife; Viallon-Galinier, Léo; Baron, Matthieu; Boone, Aaron; Bouchet, Axel; Brondex, Julien; Carmagnola, Carlo; Cluzet, Bertrand; Fourteau, Kévin; Haddjeri, Ange; Hagenmuller, Pascal; Mazzotti, Giulia; Minvielle, Marie; Morin, Samuel; Quéno, Louis; Roussel, Léon; Spandre, Pierre; Tuzet, François; Vionnet, Vincent

doi:10.5194/gmd-19-6273-2026

Articles | Volume 19, issue 13

https://doi.org/10.5194/gmd-19-6273-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

The externalised surface model SURFEX

https://doi.org/10.5194/gmd-19-6273-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 13

Model description paper

|

14 Jul 2026

Model description paper |

| 14 Jul 2026

Version 3.0.2 of the Crocus snowpack model

Matthieu Lafaysse, Marie Dumont, Basile De Fleurian, Mathieu Fructus, Rafife Nheili, Léo Viallon-Galinier, Matthieu Baron, Aaron Boone, Axel Bouchet, Julien Brondex, Carlo Carmagnola, Bertrand Cluzet, Kévin Fourteau, Ange Haddjeri, Pascal Hagenmuller, Giulia Mazzotti, Marie Minvielle, Samuel Morin, Louis Quéno, Léon Roussel, Pierre Spandre, François Tuzet, and Vincent Vionnet

Model code and software

Version 3.0.2 of the Crocus snowpack model: source code of implementation within SURFEX and externalized version Matthieu Lafaysse et al. https://doi.org/10.5281/zenodo.20493693

Snowtools v2.0.3 python package for pre- and post-processing of SURFEX-Crocus snow model simulations Léo Viallon-Galinier et al. https://doi.org/10.5281/zenodo.17122726

Short summary

This article is a comprehensive description of the 3.0.2 stable release of the Crocus snowpack model. It describes various new implementations since the last reference article in 2012 and a review of the available scientific evaluations and applications of the model. This provides guidance for the future of numerical snow modelling.