Monitoring Mendenhall Glacier Melt and Flow
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Uploaded by JuneauAlaskaVideo on Nov 10, 2011
Researchers from the University of Alaska Southeast are monitoring changes in the Mendenhall Glacier as it thins and retreats. Evidence of its thinning can be seen at trim lines and newly exposed rock. Glacial melt is calculated by measuring how much ice melts around a wire marker. In the spring, the wire is placed in a hole that was steam-drilled into the ice. At the end of summer, the amount of wire lying on the ice is the amount of ice melt. Researchers use a GPS to track the speed of glacier flow at all of the wire markers. The thickest ice, which is half way up the glacier, flows the fastest. As the Mendenhall Glacier continues to thin and retreat, its flow will slow.
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