The Cryosphere
The Cryosphere
TC
Articles | Volume 19, issue 8
Articles | Volume 19, issue 8
https://doi.org/10.5194/tc-19-3329-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-3329-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 8
Research article
 | 
27 Aug 2025
Research article |  | 27 Aug 2025

Loss of accumulation zone exposes dark ice and drives increased ablation at Weißseespitze, Austria

Lea Hartl, Federico Covi, Martin Stocker-Waldhuber, Anna Baldo, Davide Fugazza, Biagio Di Mauro, and Kathrin Naegeli
Publisher's note: on 7 September 2026, a few instances of the unit mm w.e. yr⁻¹ were corrected to m w.e. yr⁻¹, as they had been changed inadvertently during production.

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Short summary
Glacier albedo determines how much solar radiation is absorbed by the glacier surface and is a key driver of glacier melt. Alpine glaciers are losing their snow and firn cover, and the underlying darker ice is becoming exposed. This means that more solar radiation is absorbed by the ice, which leads to increased melt. To quantify these processes, we explore data from a high-elevation, on-ice weather station that measures albedo and combine this information with satellite imagery.
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