Ablation zone

Alternative definitions (2), class: vernacular (0)
Term: Ablation zone
Definition: The part of the glacier where ablation exceeds accumulation in magnitude, that is, where the cumulative mass balance relative to the start of the mass-balance year is negative. Unless qualified, for example by giving a date within the year, references to the ablation zone refer to its extent at the end of the mass-balance year. The extent of the ablation zone can vary strongly from year to year.
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary