The Cryosphere
The Cryosphere
TC
Articles | Volume 16, issue 2
Articles | Volume 16, issue 2
https://doi.org/10.5194/tc-16-559-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-16-559-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 2
Research article
 | 
15 Feb 2022
Research article |  | 15 Feb 2022

Modelling surface temperature and radiation budget of snow-covered complex terrain

Alvaro Robledano, Ghislain Picard, Laurent Arnaud, Fanny Larue, and Inès Ollivier

Data sets

Snow surface temperature in mountainous areas A. Robledano, G. Picard, and L. Arnaud https://doi.org/10.18709/perscido.2022.02.ds365

ERA5 hourly data on pressure levels from 1979 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut https://doi.org/10.24381/cds.bd0915c6

Model code and software

ghislainp/snowoptics: TC paper (tc_paper) G. Picard https://doi.org/10.5281/zenodo.3742138

ghislainp/atmosrt: roughseb_paper_robledano_TC2022 G. Picard https://doi.org/10.5281/zenodo.6046832

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Short summary
Topography controls the surface temperature of snow-covered, mountainous areas. We developed a modelling chain that uses ray-tracing methods to quantify the impact of a few topographic effects on snow surface temperature at high spatial resolution. Its large spatial and temporal variations are correctly simulated over a 50 km2 area in the French Alps, and our results show that excluding a single topographic effect results in cooling (or warming) effects on the order of 1 °C.
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