Quantitative estimates of velocity sensitivity to surface melt variations at a large Greenland outlet glacier

August 2011
Journal of Glaciology;2011, Vol. 57 Issue 204, p609
Academic Journal
The article focuses on a study about the velocity sensitivity of glacier flow speed to surface melt variations at Helheim Glacier in Greenland. It is said that flow speed affects the ice volume drained through the outlet glaciers in the region, highlighting the need for controlling the rapid changes in flow speed. The total amount of velocity variations tend to be small yet significant as the additional speed has led to an annual solid-mass loss. Findings suggest that a rate increase in terms of background melt can result into an increase in outlet-glacier sensitivity to the former during a weak positive feedback cycle.


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