Jakobshavn Isbrae: The mighty glacier of Greenland slows down out of the blue

From the BBC

By Jonathan Amos BBC Scientific Correspondent, Could 14, 2019

Picture copyright Copernicus Sentinel information (2019) / Esa Picture legend Jakobshavn in April this 12 months: The glacier is a crucial drainage level for the ice cap of the Greenland

European satellites have detailed the abrupt change in habits of one in every of Greenland's largest glaciers.

Within the 2000s, Jakobshavn Isbrae was the quickest ice stream on the island, touring 17 km a 12 months.

As he headed for the ocean, his entrance finish additionally retreated and thinned, with a peak of as much as 20 m per 12 months.

However now all the things adjustments. Jakobshavn travels far more slowly and his trunk has even began to thicken and lengthen.

"It is a full reversal of habits and it was not deliberate," stated Dr. Anna Hogg of the College of Leeds and the UK Polar Observing and Modeling Middle (CPOM).

"The query now could be: what’s the subsequent step for Jakobshavn? Is it only a break or is it a dynamic thinning cease that we've seen earlier than? "

Writer's proper on CPOM photos – A. E. Hogg Picture caption Peak change: a marked change occurred after 2013

The glacier is positioned in southwestern Greenland. It’s well-known for its spectacular manufacturing of icebergs – colossal blocks calve from its terminus and descend alongside its fjord, in Disko Bay and within the North Atlantic.

Greater than seemingly, it’s Jakobshavn that spawned the iceberg that sank the Titanic.

The scientists' curiosity within the glacier lies in its position as a drainage channel for the Greenland icecap. It’s a necessary channel for the export of ice which may then elevate the ocean stage.

Learn the total story right here.

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