Long valleys below sea level beneath Greenland’s ice margin
Nature Geoscience
2014년5월19일
Glacial valleys along the periphery of the Greenland ice sheet are more deeply incised below sea level, and reach further inland than previously thought, concludes an article published online in Nature Geoscience. The findings suggest that Greenland’s ice sheet is more vulnerable to ocean warming and thinning than thought.
Mathieu Morlighem and colleagues combined sparse ice-thickness data from radar soundings with high-resolution ice motion data from satellites to map ice thickness and bed topography along the entire margin of the Greenland ice sheet at unprecedented resolution and precision. Specifically, they identify several hitherto unknown glacial valleys where ice is grounded several hundred metres below sea level, tens of kilometres inland from the Greenland coast.
doi: 10.1038/ngeo2167
리서치 하이라이트
-
8월12일
Climate change: The Arctic is warming nearly four times faster than the rest of the worldCommunications Earth & Environment
-
8월11일
Ecology: Forest responses to climate changeNature
-
8월10일
Environment: Sharks, skates and rays at risk in protected areasNature Communications
-
8월9일
Ecology: Climate change can aggravate over half of known human pathogensNature Climate Change
-
8월4일
Environment: Extreme flooding and drought make risk management difficultNature
-
8월3일
Environment: Salt may inhibit lightning in sea stormsNature Communications
