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.
Greenland
Posted inResearch Spotlights
Evidence of an Extinct Ocean Basin Detected Beneath Greenland
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 inScience Updates
How Will Sea Ice Loss Affect the Greenland Ice Sheet?
On the Puzzling Features of Greenland Ice-Core Isotopic Composition; Copenhagen, Denmark, 26–28 October 2015
Posted inNews
Faster-Merging Snow Crystals Speed Greenland Ice Sheet Melting
Satellite data and modeling reveal a trend toward coarser-grained, more-light-absorbent snow.
Posted inNews
Giant Balls of Bacteria Pile Up on Arctic Lake Beds, Ooze Toxin
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
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
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?
Limited observational data sets and incomplete surface energy balance models constrain understanding of the driving processes for Greenland's ice sheet.
Posted inResearch Spotlights
Ice-Penetrating Radar Reveals Age of Greenland Ice Sheet Layers
First comprehensive analysis of deep radar data gives insight into the dynamics and history of the Greenland Ice Sheet.
Posted inNews
Building a Better Glacial Speedometer
Researchers race to measure and predict the Greenland ice sheet's seaward slide.