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sea ice

Antarctic sea ice
Posted inScience Updates

Understanding Past Changes in Southern Ocean Sea Ice

by M. Patterson, R. Rhodes and C. Allen 8 April 201917 August 2022

C-SIDE Workshop; Vancouver, British Columbia, Canada, 24–26 October 2018

Arctic cyclone
Posted inNews

How Arctic Cyclones Change the Sea Ice

by R. Pérez Ortega 14 January 20199 August 2022

Whirlwinds disrupt the sea ice in the Arctic Ocean. Scientists are now beginning to understand how.

Researchers Ted Maksym and Guy Williams being craned out onto pancake ice floes for sampling and placement of autonomous sensors.
Posted inEditors' Vox

Autumn in the Arctic

by J. Thomson 26 November 201815 November 2021

With refreezing in the western Arctic Ocean shifting later into the autumn, field research on changing air-ocean-ice interactions suggests that the Arctic is shifting to a more seasonal system.

Posted inEditors' Vox

Atmospheric Aerosol in the Changing Arctic

by M. Willis, R. Leaitch and J. Abbatt 13 November 201818 October 2022

Warming and sea ice loss in the Arctic are affecting the complex interactions between the atmosphere, ocean, land, and ice-covered areas, including the formation and transport of aerosol.

Tanker belching smoke
Posted inResearch Spotlights

Brown Carbon from Increased Shipping Could Harm Arctic Ice

by E. Underwood 15 August 201818 October 2022

Emission from a ship’s engine gives clues to how much light-absorbing molecules may build up on and above snow and sea ice. Such emissions are likely to increase as more ships venture into the Arctic.

Posted inEditors' Vox

Exploring a More Dynamic Arctic Icescape

by M. A. Granskog 22 June 20189 August 2022

A joint special issue presents new findings from a field campaign in the Arctic Ocean which highlights key processes that need to be taken into account to predict the future of the Arctic ice pack.

Emperor penguins on the Antarctic ice
Posted inNews

Emperor Penguins’ Huddles Change in Response to Weather

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 13 June 201825 April 2022

How quickly the penguins huddled when weather worsened provided clues about their feeding success and how climate change may alter the Antarctic biosphere, according to scientists.

Posted inEditors' Highlights

Spectral Surface Emissivity Improves Arctic Climate Simulation

by Minghua Zhang 5 April 20187 October 2022

Improving the representation of surface emissivity in the Community Earth System Model reduces its Arctic winter cold bias from 7 to 1 Kelvin degree.

Scientists exploring Arctic sea ice in 2005.
Posted inResearch Spotlights

Sea Ice Loss Suppresses Some Effects of Climate Change

by S. Witman 19 March 201813 March 2023

Polar amplification could counteract weather patterns shifting toward the poles.

New modeling shows how snow salinity may cause errors in satellite measurements of Arctic sea ice thickness
Posted inResearch Spotlights

Reducing Errors in Satellite-Derived Arctic Sea Ice Thicknesses

by S. Witman 4 December 20177 February 2023

Salty snow throws off satellite-based estimates of Arctic sea ice thickness by up to 25%. A new method seeks to fix that.

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A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

Features from AGU Publications

Research Spotlights

Watershed Sustainability Project Centers Place-Based Research

4 December 20254 December 2025
Editors' Highlights

Changes in Slab Dip Cause Rapid Changes in Plate Motion

4 December 20252 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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