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Arctic

Map of the Yukon-Kuskokwim Delta in Alaska
Posted inEditors' Highlights

The Burning Tundra

by Marguerite A. Xenopoulos 4 October 202219 January 2023

As wildfires blaze through the Arctic, scientists examine the role of landscape characteristics on wildfire ecosystem responses in northern aquatic ecosystems.

View from a research ship overlooking an expanse of fractured sea ice under a sunny sky with high clouds.
Posted inResearch Spotlights

Capturing Ocean Turbulence at the Underbelly of Sea Ice

Sarah Stanley, Science Writer by Sarah Stanley 20 September 202220 September 2022

A specially designed instrument enabled researchers in the Arctic to measure turbulence within 1 meter of the interface where ice meets ocean.

Posted inEditors' Highlights

The Long-Lasting Impact of a Nuclear War on the Ocean

by Nicolas Gruber 12 September 202227 September 2022

Model simulations of the impact of a large-scale nuclear war reveal long lasting effects with much of the ocean not returning to pre-war levels despite the cessation of the initial cooling.

Three scientists discuss around a map on a table.
Posted inFeatures

How an Unlikely Friendship Upended Permafrost Myths

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 19 August 202220 September 2023

“Beautifully long arguments” between an American scientist and a Russian researcher helped clarify several fundamental assumptions about permafrost thaw.

Graph from the paper.
Posted inEditors' Highlights

Arctic Salinity Pushes the AMOC Swing

by Kristopher B. Karnauskas 3 August 20222 July 2024

A model of the Atlantic Meridional Overturning Circulation (AMOC), pioneered by Henry Stommel over 60 years ago, can exhibit realistic cyclic behavior if the role of Arctic salinity is included.

Tero Mustonen skis across snow-covered Sweden.
Posted inFeatures

Tero Mustonen: Disrupting the Status Quo

Jane Palmer, Science Writer by Jane Palmer 25 July 202225 July 2022

Advocating for the importance of Traditional Knowledges in Finland and beyond.

Map of Alaska showing the study regions and a bar graph showing wildfire events by year.
Posted inEditors' Highlights

Lightning in Alaskan Tundra Ignites Most Fires

by Valeriy Ivanov 19 July 202211 August 2022

Cloud-to-ground lightning is found to be the most important controller of wildfire occurrence in the Artic tundra of Alaska from 2001 to 2019.

Three field photographs showing different vegetation types.
Posted inEditors' Highlights

It’s Cool to be Short When You’re in the Arctic Permafrost

by Ankur R. Desai 15 July 202225 July 2022

Extensive ground temperature measurements complicate our understanding of how vegetation cover, snow duration, and microtopography influence the pace of permafrost thaw in a changing climate.

Scientists collect samples from algal mats dotting the surface of sea ice in the Arctic.
Posted inNews

Algal Mats May Be a Key to the Arctic Food Web

by Fanni Daniella Szakal 27 June 20226 January 2023

Melt ponds in sea ice have thriving algal communities with startlingly high levels of photosynthetic activity.

Autonomous underwater vehicle being loaded onto a ship
Posted inNews

Groundwater Flow May Contribute to Submarine Permafrost Thaw

by Jack Lee 18 May 202231 May 2022

New, detailed surveys from the Beaufort Sea reveal a seafloor depression the size of a city block associated with permafrost thaw and likely influenced by the movement of groundwater below.

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Features from AGU Publications

Research Spotlights

More Bubbles Means More Variation in Ocean Carbon Storage

8 July 20258 July 2025
Editors' Highlights

Defining the Tropopause in Chemical Transport Models

8 July 20258 July 2025
Editors' Vox

Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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