Articles | Volume 18, issue 21
https://doi.org/10.5194/bg-18-5851-2021
https://doi.org/10.5194/bg-18-5851-2021
Research article
 | 
03 Nov 2021
Research article |  | 03 Nov 2021

On the influence of erect shrubs on the irradiance profile in snow

Maria Belke-Brea, Florent Domine, Ghislain Picard, Mathieu Barrere, and Laurent Arnaud

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Cited articles

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Aoki, T., Aoki, T., Fukabori, M., Hachikubo, A., Tachibana, Y., and Nishio, F.: Effects of Snow Physical Prameters on Spectral Albedo and Bidirectional Reflectance of Snow Surface, J. Geophys. Res., 105, 10219–10236, https://doi.org/10.1029/1999JD901122, 2000. 
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Barrere, M., Domine, F., Belke-Brea, M., and Sarrazin, D.: Snowmelt Events in Autumn Can Reduce or Cancel the Soil Warming Effect of Snow–Vegetation Interactions in the Arctic, J. Climate, 31, 9507–9518, https://doi.org/10.1175/JCLI-D-18-0135.1, 2018. 
Belke-Brea, M., Domine, F., Barrere, M., Picard, G., and Arnaud, L.: Impact of Shrubs on Surface Albedo and Snow Specific Surface Area at a Low Arctic Site: In-Situ Measurements and Simulations, J. Climate, 33, 1–42, https://doi.org/10.1175/JCLI-D-19-0318.1, 2019. 
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Short summary
Expanding shrubs in the Arctic change snowpacks into a mix of snow, impurities and buried branches. Snow is a translucent medium into which light penetrates and gets partly absorbed by branches or impurities. Measurements of light attenuation in snow in Northern Quebec, Canada, showed (1) black-carbon-dominated light attenuation in snowpacks without shrubs and (2) buried branches influence radiation attenuation in snow locally, leading to melting and pockets of large crystals close to branches.
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