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  • Presentation | C42A: Modeling of the Cryosphere: Seasonal Snow I Oral
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  • [ONLINE] C42A-03: Does Water Vapor Transport Explain the Bi-Layer Stratigraphy of Tundra Snowpacks? (invited)
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Author(s):
Kevin Fourteau, Univ. Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d'Études de la Neige (First Author, Presenting Author)
Julien Brondex, Univ. Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d'Études de la Neige
Henning Loewe, SLF/WSL
Francois Tuzet, Univ. Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d'Études de la Neige
Florent Domine, Takuvik Joint International Laboratory, Université Laval (Canada) and CNRS-INSU (France)
Pascal Hagenmuller, Univ. Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d'Études de la Neige
Lisa Bouvet, Univ. Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d'Études de la Neige
Neige Calonne, Univ. Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d'Études de la Neige
Kaoane Jondeau, Univ. Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d'Études de la Neige
Vincent Vionnet, Environment and Climate Change Canada
Clement Cances, Inria, Univ. Lille, CNRS, UMR 8524 - Laboratoire Paul Painlevé
Marie Dumont, Univ. Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d'Études de la Neige


The snowpack covering the arctic region is very important for the climate and the permafrost. However, models still struggle to simulate its specific stratigraphy: a light, thermally insulating, basal layer with a dense slab on top. The formation of the basal layer is usually attributed to fluxes of water vapor within the snowpack, which take matter at the bottom and move it to the surface. In the last few years, studies and campaigns have been aimed at advancing our understanding of water fluxes in snow, at implementing this phenomenon in numerical models, and at observing its influence on snowpacks in the field. First results indicate that the water vapor fluxes might not be sufficient to fully explain the basal layer of arctic snowpacks.



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