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.

Data sets

Hemispherical-directional reflectance factor (HDRF) of snow surfaces retrieved from airborne camera measurements in Antarctica during austral summer in 2013/14 Tim Carlsen, Gerit Birnbaum, André Ehrlich, Veit Helm, Evelyn Jäkel, Michael Schäfer, and Manfred Wendisch

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.