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

Picard, Ghislain; Dumont, Marie; Lamare, Maxim; Tuzet, François; Larue, Fanny; Pirazzini, Roberta; Arnaud, Laurent

doi:https://doi.org/10.5194/tc-14-1497-2020

Articles | Volume 14, issue 5

https://doi.org/10.5194/tc-14-1497-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-14-1497-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 5

Research article

|

07 May 2020

Research article |

| 07 May 2020

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

Ghislain Picard, Marie Dumont, Maxim Lamare, François Tuzet, Fanny Larue, Roberta Pirazzini, and Laurent Arnaud

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Final revised paper (published on 07 May 2020)
Preprint (discussion started on 10 Jan 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Comments on Picard2020', Anonymous Referee #1, 08 Feb 2020
- AC1: 'Responses to reviewer #1 comments', Ghislain Picard, 01 Apr 2020
RC2: 'Useful and well-written manuscript', Anonymous Referee #2, 24 Mar 2020
- AC2: 'Responses to reviewer #2 comments', Ghislain Picard, 01 Apr 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to minor revisions (review by editor) (06 Apr 2020) by Michiel van den Broeke

AR by Ghislain Picard on behalf of the Authors (06 Apr 2020) Author's response Manuscript

ED: Publish as is (06 Apr 2020) by Michiel van den Broeke

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.