Articles | Volume 18, issue 21
Biogeosciences, 18, 5851–5869, 2021
Biogeosciences, 18, 5851–5869, 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 et al.

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Cited articles

Akitaya, E.: Studies on depth hoar, in: Snow Mechanics, edited by: Nye, J., Proceedings of a symposium held at Grindelwald, April 1974, IAHS Pub. 114, 42–48, 1975. 
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,, 2000. 
Aoki, T., Kuchiki, K., Niwano, M., Kodama, Y., Hosaka, M., and Tanaka, T.: Physically Based Snow Albedo Model for Calculating Broadband Albedos and the Solar Heating Profile in Snowpack for General Circulation Models, J. Geophys. Res., 116, 1–22,, 2011. 
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,, 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,, 2019. 
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.
Final-revised paper