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The Cryosphere An interactive open-access journal of the European Geosciences Union
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When glaciers become snow-free in summer, darker glacier ice is exposed. The ice surface is darker than snow and absorbs more radiation, which increases ice melt. We measured how much radiation is reflected at different wavelengths in the ablation zone of Jamtalferner, Austria. Due to impurities and water on the ice surface there are large variations in reflectance. Landsat 8 and Sentinel-2 surface reflectance products do not capture the full range of reflectance found on the glacier.
TC | Articles | Volume 14, issue 11
The Cryosphere, 14, 4063–4081, 2020
https://doi.org/10.5194/tc-14-4063-2020
The Cryosphere, 14, 4063–4081, 2020
https://doi.org/10.5194/tc-14-4063-2020

Research article 16 Nov 2020

Research article | 16 Nov 2020

Small-scale spatial variability in bare-ice reflectance at Jamtalferner, Austria

Lea Hartl et al.

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Short summary
When glaciers become snow-free in summer, darker glacier ice is exposed. The ice surface is darker than snow and absorbs more radiation, which increases ice melt. We measured how much radiation is reflected at different wavelengths in the ablation zone of Jamtalferner, Austria. Due to impurities and water on the ice surface there are large variations in reflectance. Landsat 8 and Sentinel-2 surface reflectance products do not capture the full range of reflectance found on the glacier.
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