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Study Finds Greenland Glaciers Losing 10 Billion Tons of Ice Per Year
Yale Environment 360 | March 18, 2014 9:19 am | Comments
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The glaciers of northeast Greenland, long thought to be the most stable part of the massive Greenland ice sheet, are melting at an accelerating pace, losing roughly 10 billion tons of ice annually for the past decade, say researchers from the U.S. and Denmark.
Screen Shot 2014-03-18 at 9.01.58 AM
This map shows major ice drainages in Greenland, along with measured ice surface velocities. The northeast Greenland ice stream (NEGIS) now appears to be retreating as rapidly, or perhaps more rapidly, than other parts of the ice sheet, including Jakobshavn Isbræ (JI), Helheim Glacier (HG) and Kangerdlugssuaq (KG). Catchments for those regions are outlined on the map. Image credit: The Ohio State University, Natural History Museum of Denmark
The finding will likely boost estimates of global sea level rise, which had previously not accounted for massive ice loss from that region, scientists say. The Zachariae ice stream in northeast Greenland, which drains 16 percent of the ice sheet, has retreated roughly 12.4 miles during the past decade, outpacing the fast-moving Jakobshavn glacier, which has retreated 21.7 miles over the last 150 years.
Ice loss from the region is likely accelerating, the researchers say, because ice dams in nearby bays that had been blocking the glaciers paths are now also melting, freeing the way for them to flow into the ocean.
Northeast Greenland is very coldit used to be considered the last stable part of the Greenland ice sheet, explained the lead researcher of the report, which was published in Nature C*****e C****e. This study shows that ice loss in the northeast is now accelerating. So, now it seems that all of the margins of the Greenland ice sheet are unstable.
Other recent studies had estimated more moderate ice loss from Greenlands northeast.
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Sorry Brian and Permafrost but again, you are wrong about Greenland Glacier, it is expanding. Why is it that you have to always lie to us. Here is the real story:
GREENLAND See Greenland Icecap Growing Thicker
Greenland glacier advancing 7.2 miles per year! The BBC recently ran
a documentary, The Big Chill, saying that we could be on the verge of an ice
age. Britain could be heading towards an Alaskan-type climate within a decade,
say scientists, because the Gulf Stream is being gradually cut off. The Gulf
Stream keeps temperatures unusually high for such a northerly latitude.
One of Greenlands largest glaciers has already doubled its rate of advance,
moving forward at the rate of 12 kilometers (7.2 miles) per year. To see a
transcript of the documentary,
go to
http://www.bbc.co.uk/science/horizon/2003/bigchillt***s.shtmlGreenland Ice Sheet Growing Thicker
4 Nov 05 - After gathering data for more than ten years, a team of
Norwegian-led scientists has found that the Greenland Ice Sheet is
actually growing thicker at its interior.
See Greenland Ice Sheet Growing Thicker
Rebellious Greenland Glacier Keeps Growing
26 July 10 - Berlingske Glacier has steadily grown for the past
100 years. And yet, it's not counted in the glacier inventory. Why
haven't we heard about this growing glacier?
See Rebellious Greenland Glacier Keeps Growing