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February 27, 2017
A River Runs 40 km Across the Greenland Ice Sheet
Supraglacial stream, on July 26, 2016 Landsat image, stretching 40 km across the ice sheet from the transient snowline, which marks the boundary between the percolation zone and the wet snow zone, west toward the ice sheet margin, note black arrows. The Greenland Ice Sheet has experienced a significant increase in surface melt. This is due both to warmer temperatures and enhanced melt due to a reduction in reflectivity-albedo. The expansion …
Dean of Academic Affairs at Nichols College and Professor of Environmental Science at Nichols College in Massachusetts since 1989. Glaciologist directing the North Cascade Glacier Climate Project since 1984. This project monitors the mass balance and behavior of more glaciers than any other in North America.