A new study of Greenland's ice sheet revealed dozens of previously unknown lakes located beneath the massive icy body.
The 56 lakes, ranging in size from about 650 feet to more than 3.5 miles, bear the number of Researchers claim this is the first comprehensive view of the water bodies locked under a leaf that has melted in recent years as a result of global warming. more lakes than people have thought before, "says Winnie Chu, a post-graduate student at Stanford University in Palo Alto, California, and co-author of a study article published on June 26 in Nature Communications.
Lakes mean the future of the Greenland ice sheet, given the threat of climate change? If they are not checked, the melting of ice sheets in Greenland and Antarctica, the place of another massive ice sheet on Earth, will cause sea level rise threatening to flood low-lying coastal areas around the world, researchers said. He heard that the lakes could have a lubricating effect on the ice, which she likened to a water slide. As the ice descends down to the lower heights, it may be even more susceptible to surface melting. However, it is not clear that many lakes under Greenland's glacier will have a significant effect on sea level.
"We do not think the Greenland lakes are a huge concern for climate change," Chu said, adding that water bodies can even store the molten waters that would otherwise enter the oceans.
Scientists have long suspected that the land under Greenland's ice sheet is dotted with lakes. under the melted parts of the ice, others when the melt flows through the openings, known as the Mülans, which gather in cavities under the ice. "Value of radar-infested radar data collected by NASA airplanes during the Greenland ice break, and they have also explored detailed topographic maps of the leaf, searching for cavities that suggest that Twila Moon, a researcher, who examines Greenland's ice sheet at the National Snow and Ice Data Center in Colorado, Boulder and did not participate in the study, said she had not expected discoveries to influence the melting. "Many of these lakes seem to exist there for a long time, "she said we do not need to come back and recalculate how we think [the ice sheet] may change in the future. "
Moon commended the study of its completeness, adding that more research would be needed to fully understand the relationship between the ice sheet and its underground lakes. "This is a kind of work that is at the top of the iceberg," she said
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