Melt-albedo feedback on Greenland ice sheet

What is the mechanism linking the unexpected August 2021 rainfall on Greenland with snow and ice melt on the ice sheet?

Researchers from GEUS (Geological Survey of Denmark and Greenland), leading the Pre-Operational Sentinel-3 snow and ice products (SICE) project, highlighted a feedback framework where, before the rain, warm atmospheric rivers triggered melting which exposed darker bare ice and modified surface albedo; this, in turn, amplified the melting process.

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