Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 19, issue 19
Articles | Volume 19, issue 19
https://doi.org/10.5194/gmd-19-9581-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-19-9581-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 19
Development and technical paper
 | 
12 Oct 2026
Development and technical paper |  | 12 Oct 2026

Improving the CLASSIC (v1.8) snow model to better simulate Arctic snowpacks

Mickaël Lalande, Alexandre Roy, Libo Wang, Diana Verseghy, Vincent Vionnet, Florent Dominé, and Christophe Kinnard

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Short summary
This study enhances a snow model for Arctic environments by improving the heat exchanges within the snowpack and at its interfaces, revising the compaction scheme, and adding consideration of blowing snow sublimation losses. Simulations at ten Arctic, mid-latitude, and Alpine sites show significant reductions in simulated soil and snow temperature biases and improved simulated snow depth and density, which are key features to improve simulated energy, water, and carbon budgets in the Arctic.
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