Firn line

Alternative definitions (9), class: vernacular (0)

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Term: Firn line
Definition: In hydrologic terms, the highest level to which the fresh snow on a glacier's surface retreats during the melting season. The line separating the accumulation area from the ablation area.
GCW NOAA-NWS
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary
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