Articles | Volume 14, issue 5
The Cryosphere, 14, 1497–1517, 2020
https://doi.org/10.5194/tc-14-1497-2020
The Cryosphere, 14, 1497–1517, 2020
https://doi.org/10.5194/tc-14-1497-2020
Research article
07 May 2020
Research article | 07 May 2020

Spectral albedo measurements over snow-covered slopes: theory and slope effect corrections

Ghislain Picard et al.

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Latest update: 08 Aug 2022
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Short summary
Surface albedo is an essential variable of snow-covered areas. The measurement of this variable over a tilted terrain with levelled sensors is affected by artefacts that need to be corrected. Here we develop a theory of spectral albedo measurement over slopes from which we derive four correction algorithms. The comparison to in situ measurements taken in the Alps shows the adequacy of the theory, and the application of the algorithms shows systematic improvements.