Equilibrium line

Alternative definitions (7), class: vernacular (0)
Term: Equilibrium line
Definition: The spatially averaged boundary at a given moment, usually chosen as the seasonal mass budget minimum at the end of summer, between the region on a glacier where there is a net annual loss of ice mass (ablation area) and that where there is a net annual gain (accumulation area). The altitude of this boundary is referred to as equilibrium line altitude (ELA).
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary