Articles | Volume 19, issue 8
https://doi.org/10.5194/tc-19-3329-2025
https://doi.org/10.5194/tc-19-3329-2025
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

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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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