Ice Sheet Modeling Of Greenland Antarctica Helps Predict Sea-level Rise
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Predicting the expected loss of ice sheet mass is difficult due to the complexity of modeling ice sheet behavior. To better understand this loss, a team of researchers has been improving the reliability and efficiency of computational models that describe ice sheet behavior and dynamics.
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Ice Age Blob Of Warm Ocean Water Discovered South Of Greenland
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Greenland experienced several abrupt and brutal climate changes during the last ice age. But even during the coldest periods a blob of warm surface water existed nearby.
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Greenland's ice is getting darker, increasing risk of melting
Greenland's snowy surface has been getting darker over the past two decades, absorbing more heat from the sun and increasing snow melt, a new study of satellite data shows. That trend is likely to continue, with the surface's reflectivity, or albedo, decreasing by as much as 10 percent by the end of the century, the study says. Ref. Source 5d.
Scientists track Greenland's ice melt with seismic waves
Researchers have developed a new technique to monitor the seasonal changes in Greenland's ice sheet, using seismic vibrations generated by crashing ocean waves. The results may help scientists pinpoint regions of the ice sheet that are most vulnerable to melting. The technique may also set better constraints on how the world's ice sheets contribute to global sea-level changes. Ref. Source 3g.
A history of snowfall on Greenland, hidden in ancient leaf waxes
The history of Greenland's snowfall is chronicled in an unlikely place: the remains of aquatic plants that died long ago, collecting at the bottom of lakes in horizontal layers that document the passing years. Using this ancient record, scientists have determined that snowfall at one key location in western Greenland may have intensified from 6,000 to 4,000 years ago, a period when the planet's Northern Hemisphere was warmer than it is today. Ref. Source 6m.