Articles | Volume 26, issue 3
https://doi.org/10.5194/acp-26-1847-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-1847-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
05 Feb 2026
Research article |
| 05 Feb 2026
| 05 Feb 2026
Modeling the coupled and decoupled states of polar boundary-layer mixed-phase clouds
Étienne Vignon
CORRESPONDING AUTHOR
Laboratoire de Météorologie Dynamique-IPSL, Sorbonne Université/CNRS/Ecole Normale Supérieure-PSL Université/Ecole Polytechnique-Institut Polytechnique de Paris, Paris, France
Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Université d'Orléans, CNRS UMR7328, CNES, Orléans, France
Lea Raillard
Laboratoire de Météorologie Dynamique-IPSL, Sorbonne Université/CNRS/Ecole Normale Supérieure-PSL Université/Ecole Polytechnique-Institut Polytechnique de Paris, Paris, France
Audran Borella
Institut Pierre‐Simon Laplace, Sorbonne Université/CNRS, Paris, France
Gwendal Rivière
Laboratoire de Météorologie Dynamique-IPSL, Sorbonne Université/CNRS/Ecole Normale Supérieure-PSL Université/Ecole Polytechnique-Institut Polytechnique de Paris, Paris, France
Jean-Baptiste Madeleine
Laboratoire de Météorologie Dynamique-IPSL, Sorbonne Université/CNRS/Ecole Normale Supérieure-PSL Université/Ecole Polytechnique-Institut Polytechnique de Paris, Paris, France
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Paraskevi Georgakaki, Georgia Sotiropoulou, Étienne Vignon, Anne-Claire Billault-Roux, Alexis Berne, and Athanasios Nenes
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Short summary
Polar low-level clouds are most often of mixed-phase composition as they contain both liquid droplets and ice crystals. Such clouds are challenging to simulate in climate models, leading to uncertainties in the projection of polar climates. This study presents major advances in the representation of polar mixed-phase clouds in a climate model thanks to the adaptation of an original subgrid parameterization which considers interactions between turbulent eddies and clouds.
Polar low-level clouds are most often of mixed-phase composition as they contain both liquid...
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