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Πέμπτη 11 Ιανουαρίου 2018

The Larsen C ice shelf break has sparked groundbreaking research


Larsen C ice shelf break
In 2015, glaciologist Daniela Jansen reported that a large rift was rapidly growing across one of the Antarctic Peninsula’s ice shelves, known as Larsen C. When the shelf broke, she and colleagues predicted, it would be the largest calving event in decades.
It was. In July, a Delaware-sized iceberg split off from Larsen C  (SN: 8/5/17, p. 6). And researchers knew practically the moment it happened.
After Jansen’s 2015 paper, a U.K.-led group called Project MIDAS began keeping close track of the rift, aided by new data delivered every six days from a pair of European polar-orbiting satellites known as Sentinel-1. Jansen, of the Alfred Wegener Institute in Bremerhaven, Germany, and glaciologist Adrian Luckman of Swansea University in Wales were among the MIDAS team members who reported their observations on the team’s blog.
To the scientists’ surprise, the news media, perhaps anticipating a climate change moment, began to track the trackers. When interviewed, the researchers repeatedly noted that ice shelves calve naturally, and that any link between the new rift and climate change is complicated at best. But the crescendo of public interest still rose, particularly during the spring and summer of 2017 as the final break loomed.
Read more: 
https://www.sciencenews.org/article/larsen-c-ice-shelf-top-science-stories-2017-yir

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