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Ice sheets

Isolation lake in northwestern Scotland
Posted inNews

An Ancient Meltwater Pulse Raised Sea Levels by 18 Meters

by Tim Hornyak 2 June 202118 November 2021

Meltwater pulse 1A, a period of rapid sea level rise after the last deglaciation, was powered by melting ice from North America and Scandinavia, according to new research.

Iceberg that has broken off from the Antarctic ice sheet
Posted inNews

Gravity Data Reveal Unexpected Antarctic Ice Variations

by S. Melchor 7 December 202029 September 2021

A new analysis of long-term satellite records shows the East Antarctic Ice Sheet is unexpectedly dependent on fluctuations in weather. This study may improve models of how much sea levels will rise.

Ice on the west coast of Greenland
Posted inNews

Cielos Despejados Sin Precedentes Condujeron a un Notable Deshielo en Groenlandia

by Hannah Thomasy 10 August 202029 September 2021

A los científicos les preocupa que los modelos climáticos actuales no tomen en cuenta el impacto de las condiciones atmosféricas en la capa de hielo del Groenlandia, y en consecuencia, puedan subestimar drásticamente su derretimiento.

Pools of bright blue water amid ice
Posted inNews

Freshwater Pools Show Antarctica Is More Vulnerable Than We Thought

by Kimberly M. S. Cartier 4 October 20194 October 2019

East Antarctica’s lakes cluster in patterns similar to those on Greenland’s ice sheet, which is melting rapidly.

Meltwater flows in a canyon around 30 meters deep in Greenland.
Posted inResearch Spotlights

Mapping Ice Algal Blooms from Space

by E. Underwood 17 April 2019

Satellite data reveal how colorful algae are melting the Greenland ice sheet.

A view of the aircraft used to collect radar data over Antarctica
Posted inResearch Spotlights

Subglacial Water Can Accelerate East Antarctic Glacier Flow

by Terri Cook 3 April 2019

Airborne radar from the Recovery Glacier system demonstrates the importance of characterizing the underlying causes of ice flow speedup to understand how glacial discharge could change in the future.

A researcher collects a rock sample for dating
Posted inResearch Spotlights

More Evidence Humans Migrated to the Americas via Coastal Route

by Terri Cook 7 February 2019

A new chronology shows that ice-free areas existed along the British Columbia coast earlier than previously thought.

Greenland iceberg
Posted inNews

Icebergs Reveal Contours of the Ocean Bottom

by Katherine Kornei 10 January 20195 January 2022

Using satellite imagery of grounded icebergs near Greenland, researchers estimate the drafts of these ice masses and therefore water depth, measurements that shed light on future sea level rise.

An overview of interactions and feedbacks between ice sheets and the Earth system
Posted inEditors' Vox

Icy Interactions

by J. Fyke, Olga Sergienko, M. Löfverström, S. Price and J. Lenaerts 13 July 2018

Complex interactions between ice sheets and other components of the Earth system determine how ice sheets contribute to sea level rise.

Supraglacial lakes on Petermann glacier in Greenland
Posted inNews

Rare Glacial River Drains Potentially Harmful Lakes

by Katherine Kornei 14 June 2018

Antarctic lakes have contributed to ice shelf breakup in the past, but a glacier in Greenland appears safe from a similar fate, thanks to a river that drains away water.

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