NASA discovers new mode of ice loss in Greenland
A NASA study found that during Greenland's hottest summers on record, 2010 and 2012, ice of the island's Rink Glacier slid through its interior. The 4-month-long "gigantic" wave of meltwater, called a 'solitary wave', was discovered as a new mode of sustained ice loss. The study was the first to track a glacier's mass loss using GPS sensor's horizontal motion.