A Technique for Photogrammetric Estimation of Albedo of Snow–Ice Surfaces

New ways to improve the original technique for assessing the albedo of snow–ice surfaces with the use of ground measurements of incoming solar radiation, photogrammetric information, and metadata on shooting parameters (Zhuravskiy et al., 2018) are considered. The first version of the technique was used to assess the albedo of natural and artificial snow–ice surfaces (fast ice, glacial-crack zones, ice-airfield runways) in the region of the Russian Antarctic station Progress (Zhuravskiy et al., 2020). However, that technique did not always allow assessment of the albedo under strong changing illumination of the surface and with limited source data. The new technique makes more correct estimation of the albedo under extreme conditions possible.