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Greenland

Aerial view, looking west over Wordie glacier, one of the smaller outlet glaciers in northeastern Greenland
Posted inScience Updates

Using Landsat to Take the Long View on Greenland's Glaciers

by M. Scheinert, R. Rosenau and B. Ebermann 29 December 201627 July 2022

A new web-based data portal gives scientists access to more than 40 years of satellite imagery, providing seasonal to long-term insights into outflows from Greenland's ice sheet.

Researchers examine the dire impacts of climate change on ocean circulation, and how they may be avoidable.
Posted inResearch Spotlights

Major Ocean Circulation Pattern at Risk from Greenland Ice Melt

by E. Underwood 20 December 201611 January 2022

The current warming trend could mean the collapse of ocean's global conveyor belt, which would have far-reaching effects on climate around the world. But this collapse could still be avoided.

Hovercraft-based Arctic sea ice drift research station in February
Posted inScience Updates

Scientists Spend Arctic Winter Adrift on Sea Ice

by Y. Kristoffersen, A. Tholfsen, J. K. Hall and R. Stein 11 October 20169 August 2022

A hovercraft-based ice drift station gives researchers access to previously inaccessible regions of the changing Arctic sea ice cover off the coast of Greenland.

Ice-free region near the Greenland Ice Sheet
Posted inScience Updates

Climate-Driven Change in Ice-Free Areas of Greenland

by R. M. Northington, J. E. Bullard and J. Telling 5 October 201611 January 2022

KAIRN (Kangerlussuaq International Research Network) 2nd Annual Meeting; Acadia National Park, Maine, 4–7 May 2016

A large river network lies beneath Jakobshavn Glacier.
Posted inResearch Spotlights

A River Network Preserved Beneath the Greenland Ice Sheet

by Terri Cook 28 June 201613 January 2022

An ancient drainage basin covering one fifth of Greenland predates the ice sheet and strongly influences the modern Jakobshavn Glacier, according to a new analysis of ice-penetrating radar data.

Topography and bathymetry around Greenland overlain with ancient slab material projected from 1400 kilometers depth.
Posted inResearch Spotlights

Evidence of an Extinct Ocean Basin Detected Beneath Greenland

by Terri Cook 25 May 201611 January 2022

An analysis of a seismic and gravity anomaly discovered in the middle mantle sheds new light on ancient oceans, the mantle's evolution, and ancient magmatism in the Arctic.

Posted inNews

Giant Balls of Bacteria Pile Up on Arctic Lake Beds, Ooze Toxin

by E. Benson 23 December 201511 October 2022

Researchers have found cyanobacteria colonies as big as softballs thriving unexpectedly on shallow Greenland lake bottoms, exuding liver-damaging microcystin. Locals dubbed them "sea tomatoes."

Posted inResearch Spotlights

Sea Level Rise Due to Warming, Weakening of Greenland Glaciers

by David Shultz 9 November 20156 October 2022

Increasing ice temperatures and decreasing ice viscosities could lead to "thermal-viscous collapse" of the Greenland ice sheet, raising sea levels as much as 51 centimeters over the next 500 years.

Posted inResearch Spotlights

Near-Surface Aquifer Discovered on Svalbard Glacier

by Terri Cook 9 October 201523 January 2023

Arctic glacier aquifer may respond more rapidly to climate change than larger aquifers found on the Greenland ice sheet.

Posted inOpinions

What Darkens the Greenland Ice Sheet?

by M. Tedesco, S. Doherty, S. Warren, M. Tranter, J. Stroeve, X. Fettweis and P. Alexander 17 September 20156 July 2022

Limited observational data sets and incomplete surface energy balance models constrain understanding of the driving processes for Greenland's ice sheet.

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