NASA Launches Mission To Greenland
(Click to enlarge) The MV Cape Race is using sonar to map the depth of water around Greenland’s west coast. (Credit: Maria Stenzel/UCI)
When the retired fishing trawler MV Cape Race sets off along Greenland’s west coast this week, it will start hauling in a scientific catch that promises to improve projections of how the ice-covered island will fare in a warming world. The ship’s cruise is the initial phase of a six-year air and sea campaign to probe interactions between Greenland’s glaciers and the deep, narrow fjords where they come to an end.
(From Nature / by Jeff Tollefson) — Called Oceans Melting Greenland (OMG), the US$30-million NASA project will help scientists to predict the future of the Greenland ice sheet, which holds enough water to boost sea levels by around 6 metres and already seems to be melting more rapidly in response to increasing air temperatures. But it is not clear how much the oceans affect the rate of melting along the island’s edges, which depends on poorly known variables such as how warm, saline water interacts with the glaciers.
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