It was around sunset by the time he got to the lip of the crevasse. Hewitt estimated the man had been stuck on a ledge deep in the ice for more than four hours. Hewitt said he arrived to find a ...

By applying image-processing techniques to over 8,000 maps, we could estimate how much water, snow or air would be needed to "fill" each crevasse across the ice sheet. This enabled us to calculate ...

Analyzing crevasse behavior across the entire Greenland ice sheet required new approaches. “You can’t do it in person, because crevasses are dangerous. It’s hard to study by hand using ...

Ice seracs, crevasses, and towering ice pinnacles that can reach heights over 200 feet populate its vast landscape. The ever-shifting nature of the icefall, which flows an average of four feet per ...