Articles | Volume 14, issue 5
https://doi.org/10.5194/tc-14-1651-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-14-1651-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 May 2020
Research article |
| 27 May 2020
| 27 May 2020
Snow albedo sensitivity to macroscopic surface roughness using a new ray-tracing model
Fanny Larue
CORRESPONDING AUTHOR
Univ. Grenoble Alpes, CNRS, Institut des Géosciences de l’Environnement (IGE), UMR 5001, Grenoble, 38041, France
Ghislain Picard
Univ. Grenoble Alpes, CNRS, Institut des Géosciences de l’Environnement (IGE), UMR 5001, Grenoble, 38041, France
Laurent Arnaud
Univ. Grenoble Alpes, CNRS, Institut des Géosciences de l’Environnement (IGE), UMR 5001, Grenoble, 38041, France
Inès Ollivier
Univ. Grenoble Alpes, CNRS, Institut des Géosciences de l’Environnement (IGE), UMR 5001, Grenoble, 38041, France
Clément Delcourt
Univ. Grenoble Alpes, CNRS, Institut des Géosciences de l’Environnement (IGE), UMR 5001, Grenoble, 38041, France
Maxim Lamare
Univ. Grenoble Alpes, CNRS, Institut des Géosciences de l’Environnement (IGE), UMR 5001, Grenoble, 38041, France
Univ. Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d’Etudes de la Neige, 38000 Grenoble, France
François Tuzet
Univ. Grenoble Alpes, CNRS, Institut des Géosciences de l’Environnement (IGE), UMR 5001, Grenoble, 38041, France
Univ. Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d’Etudes de la Neige, 38000 Grenoble, France
Jesus Revuelto
Univ. Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d’Etudes de la Neige, 38000 Grenoble, France
Marie Dumont
Univ. Grenoble Alpes, Université de Toulouse, Météo-France, CNRS, CNRM, Centre d’Etudes de la Neige, 38000 Grenoble, France
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- Bridging the gap between airborne and spaceborne imaging spectroscopy for mountain glacier surface property retrievals C. Donahue et al. 10.1016/j.rse.2023.113849
- Impact of Vehicle Soot Agglomerates on Snow Albedo S. González-Correa et al. 10.3390/atmos13050801
- Impact of varying solar angles on Arctic iceberg area retrieval from Sentinel-2 near-infrared data H. Fisser et al. 10.1017/aog.2024.39
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- Field study on the diffusion and advection effects of vehicle-emitted soot aerosols on snow albedo in the Chilean Andes S. González-Correa et al. 10.1016/j.atmosenv.2023.120136
- The Collection of Hyperspectral Measurements on Snow and Ice Covers in Polar Regions (SISpec 2.0) R. Salvatori et al. 10.3390/rs14092213
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- Simulation of Spectral Albedo and Bidirectional Reflectance over Snow-Covered Urban Canyon: Model Development and Factor Analysis Q. Chen et al. 10.3390/rs16132340
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Latest update: 14 Dec 2024
Short summary
The effect of surface roughness on snow albedo is often overlooked,
although a small change in albedo may strongly affect the surface energy
budget. By carving artificial roughness in an initially smooth snowpack,
we highlight albedo reductions of 0.03–0.04 at 700 nm and 0.06–0.10 at 1000 nm. A model using photon transport is developed to compute albedo considering roughness and applied to understand the impact of roughness as a function of snow properties and illumination conditions.
The effect of surface roughness on snow albedo is often overlooked,
although a small change in...
