Accumulation zone

On a glacier, the accumulation zone is the area above the firn line, where snowfall accumulates and exceeds the losses from ablation, (melting, evaporation, and sublimation). ^[1]

7 relations: Ablation, Ablation zone, Evaporation, Firn, Glacier, Melting, Sublimation (phase transition).

Ablation

Ablation is removal of material from the surface of an object by vaporization, chipping, or other erosive processes.

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Ablation zone or ablation area refers to the low-altitude area of a glacier or ice sheet below firn with a net loss in ice mass due to melting, sublimation, evaporation, ice calving, aeolian processes like blowing snow, avalanche, and any other ablation.

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Evaporation

Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gaseous phase before reaching its boiling point.

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Firn

Firn (from Swiss German firn "last year's", cognate with before) is partially compacted névé, a type of snow that has been left over from past seasons and has been recrystallized into a substance denser than névé.

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Glacier

A glacier is a persistent body of dense ice that is constantly moving under its own weight; it forms where the accumulation of snow exceeds its ablation (melting and sublimation) over many years, often centuries.

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Melting

Melting, or fusion, is a physical process that results in the phase transition of a substance from a solid to a liquid.

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Sublimation (phase transition)

Sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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Redirects here:

Glacier accumulation zone.

References

[1] https://en.wikipedia.org/wiki/Accumulation_zone

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