Articles | Volume 14, issue 11
The Cryosphere, 14, 3959–3978, 2020
The Cryosphere, 14, 3959–3978, 2020

Research article 12 Nov 2020

Research article | 12 Nov 2020

Parameterizing anisotropic reflectance of snow surfaces from airborne digital camera observations in Antarctica

Tim Carlsen et al.

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Cited articles

Aoki, T., Aoki, T., Fukabori, M., Hachikubo, A., Tachibana, Y., and Nishio, F.: Effects of snow physical parameters on spectral albedo and bidirectional reflectance of snow surface, J. Geophys. Res., 105, 10.219–10.236,, 2000. a
Bourgeois, C., Ohmura, A., Schroff, K., Frei, H.-J., and Calanca, P.: IAC ETH goniospectrometer: A tool for hyperspectral HDRF measurements, J. Atmos. Ocean. Tech., 23, 573–584,, 2006a. a
Bourgeois, C. S., Calanca, P., and Ohmura, A.: A field study of the hemispherical directional reflectance factor and spectral albedo of dry snow, J. Geophys. Res., 111, D20108,, 2006b. a
Brest, C. and Goward, S.: Deriving surface albedo measurements from narrow-band satellite data, Int. J. Remote Sens., 8, 351–367,, 1987. a
Carlsen, T.: Influence of snow properties on directional surface reflectance in Antarctica, PhD thesis, Faculty of Physics and Earth Sciences, Leipzig University, available at: (last access: 8 November 2020), 2018. a, b
Short summary
The angular reflection of solar radiation by snow surfaces is particularly anisotropic and highly variable. We measured the angular reflection from an aircraft using a digital camera in Antarctica in 2013/14 and studied its variability: the anisotropy increases with a lower Sun but decreases for rougher surfaces and larger snow grains. The applied methodology allows for a direct comparison with satellite observations, which generally underestimated the anisotropy measured within this study.