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Arctic

banks of the lower Kolyma River at Duvannyi Yar in northern Siberia erode and collapse toward the river in August 2018.
Posted inResearch Spotlights

Organic Matter in Arctic River Shows Permafrost Thaw

by David Shultz 7 April 202029 September 2021

Samples from two waterways in northern Siberia—the main stem of the Kolyma River and a headwater stream in the river’s watershed—indicate the differing sources and ages of carbon they contain.

Diagram of chemical dynamics of soil “frost boils” with an inset of a plant on rocky ground
Posted inResearch Spotlights

Floating Patches of Soil Nutrients in Soil Help Explain Arctic Thawing

by David Shultz 2 April 202029 September 2021

Nutrient-rich diapirs have a complex relationship with soil microbes and play an important role in carbon and nitrogen nutrient cycling, making them crucial for understanding feedbacks in the Arctic.

Reindeer walking on snow in a forest
Posted inNews

Reindeer Could Trample Permafrost Thaw

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 25 March 202031 January 2022

Thick, fluffy snow traps summer’s heat in the top layers of Arctic permafrost even as winter chills the air above. Grazing animals stomp that snow flat.

Satellite view of the Lena River delta in June 2019
Posted inResearch Spotlights

River Deltas at the Top of the World

Elizabeth Thompson by Elizabeth Thompson 20 March 202019 September 2023

The water that filters through river deltas has a large effect on the Arctic Ocean. A new study explores factors that shape Arctic river deltas and how delta form in turn changes water flow.

Seismic monitoring equipment sits atop snow at a remote test site in Antarctica with a helicopter in the background.
Posted inScience Updates

A Shared Resource for Studying Extreme Polar Environments

by J. Sweet, J. P. Winberry, A. Huerta, K. Anderson, B. Beaudoin, S. Bilek, P. Carpenter, K. Nikolaus, A. Roth, K. Arnell, N. Lingutla and B. Woodward 18 March 202028 July 2022

A new community pool of seismic instrumentation will facilitate and advance geologic and cryospheric research in Earth’s ice-covered environments.

Iceberg floating in the Arctic Ocean
Posted inNews

Climate Change Is Intensifying Arctic Ocean Currents

Hannah Thomasy, Science Writer by Hannah Thomasy 3 March 202020 July 2022

Melting ice means that strong Arctic winds create more energetic currents in the Beaufort Gyre.

Aerial view of buildings on a narrow spit of land
Posted inNews

Helping Alaskan Communities Facing Climate Risks

by Randy Showstack 7 February 202029 April 2022

Scientists examine how best to use science to help communities respond to rapid climate change in the Arctic.

Satellite image of the delta in northern Siberia where the Lena River meets the Arctic Ocean
Posted inEditors' Vox

Insights from Space: Satellite Observations of Arctic Change

by B. N. Duncan, L. E. Ott and C. L. Parkinson 27 January 202029 March 2023

New satellite instruments and data, plus a more comprehensive observing network, are key to increasing our understanding of past and future change in the Arctic Boreal Zone.

High-resolution satellite image of the Okmok volcanic plume in the Aleutian Islands
Posted inNews

Using Satellites and Supercomputers to Track Arctic Volcanoes

by L. Streiff 20 December 201924 May 2022

New data sets from the ArcticDEM project help scientists track elevation changes from natural hazards like volcanoes and landslides before, during, and long after the events.

The drillship Vidar Viking sits amid Arctic sea ice during the International Ocean Discovery Program’s Arctic Coring Expedition in 2004.
Posted inResearch Spotlights

Reconstructing 150 Million Years of Arctic Ocean Climate

by David Shultz 18 December 201926 January 2023

A new summary of past Arctic climate conditions gives insight into anthropogenic influences on today’s climate and on the need for future drilling studies to further improve our understanding of the past.

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