Field Investigations of Icelandic Joekulhlaups as an Analog to Floods on Mars

Physics

Scientific paper

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Iceland, Geomorphology, Glaciers, Glaciology, Ice, Entrainment, Mars (Planet), Predictions

Scientific paper

Joekulhlaups are believed to play a dominant role in the evolution of proglacial outwash plains in many parts of the world and strongly influence the morphology and dynamics of glacier margins. Improved understanding of the characteristics and geomorphic effectiveness of such high magnitude events is invaluable for understanding former ice sheet dynamics, processes and rates of deglaciation, and predicting the environmental impacts of future events. Although the characteristics and immediate geomorphic impact of storage-release events such as the November 1996 joekulhlaup at Skeidararsandur have been investigated, few studies have focused on the impact of volcanically-generated joekulhlaups released directly into the proglacial zone. Spectacular joekulhlaup induced fracturing and sediment fills within Skeidarajoekull illustrate the importance of joekulhlaups as a mechanism of sediment entrainment into glaciers and ice sheets. Additional information is contained in the original extended abstract.

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