Submergence velocity

Alternative definitions (1), class: vernacular (0)
Term: Submergence velocity
Definition: The vertical component, when it is directed downward, of the glacier-flow velocity vector at the glacier surface, at a point fixed in space. When the component is directed upward, it is called the emergence velocity. The submergence velocity is related through the continuity equation to the climatic-basal mass balance and the rate of thickness change. The component is typically upward in the ablation zone and downward in the accumulation zone.
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary