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50 lakes found hidden under Greenland's ice


Posted on Thursday, 27 June, 2019 | Comment icon 4 comments

There are dozens of lakes hidden beneath Greenland's ice sheet. Image Credit: CC BY 2.0 Christine Zenino
Scientists have identified more than 50 bodies of water hidden deep beneath Greenland's ice sheet.
The discovery was made by manually analyzing large amounts of ice-penetrating radar data recorded by NASA's IceBridge program which involved flying a plane equipped with special instrumentation back and forth over the region to map the ice sheet's internal layers.

Previously only 4 subglacial lakes had ever been found in Greenland.

On the opposite side of the planet, Antarctica is known to have at least 470 lakes hidden beneath the ice however these are generally much larger with the largest - Lake Vostok - being 250km long.
"In contrast to Antarctic subglacial lakes, which are typically clustered around (interior) ice divides, these new Greenlandic lakes are mostly found towards the margin of the ice sheet, under relatively slow-moving ice and are mostly stable," said Jade Bowling from Lancaster University.

"They are also much smaller than those in Antarctica (1.4km average length compared to 11km)."

The discovery will help scientists to learn more about the water network beneath the ice and how it enables the ice to move. It will also help them better predict future sea-level rises.

Source: BBC News | Comments (4)

Tags: Greenland, Lakes

Recent comments on this story
Comment icon #1 Posted by sci-nerd on 26 June, 2019, 21:26
There's no ice on the planet in 10 years. And I'm being optimistic about the 10 years.
Comment icon #2 Posted by TripGun on 27 June, 2019, 16:02
Cycles Cycles Cycles
Comment icon #3 Posted by Seti42 on 27 June, 2019, 16:56
I don't think it'll be that quick, but I do seriously think we might be past the point of no return. But hey, who cares right? We'll all be dead! Gotta make that fossil fuel money and deny science! 
Comment icon #4 Posted by sci-nerd on 27 June, 2019, 17:09
Perhaps you're right, but if you observe ice melting, it's always slow at first, and then it suddenly accelerates. That acceleration has started, and it's also releasing ancient methane, that will further accelerate the melting. Seen in that perspective, I think 10 years is optimistic.


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