glacier outburst flood

glacier outburst flood
   A sudden, often annual, release of meltwater from a glacier or glacier-damned lake sometimes resulting in a catastrophic flood, formed by melting of a drainage channel or buoyant lifting of ice by water or by subglacial volcanic activity; also called jokuhlaup.
   Compare: scabland, giant ripple.
   GG

Glossary of landform and geologic terms. 2013.

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