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Southern Ocean

Six penguins walk along a rocky outcrop. Snowy mountains are in the background.
Posted inResearch Spotlights

Forecasting the Future of Southern Ocean Ecosystems

by Rebecca Owen 26 March 202526 March 2025

A new ensemble of marine ecosystem models aims to improve understanding of how climate change will affect the waters surrounding Antarctica.

Four graphs from the study.
Posted inEditors' Highlights

How Southern Ocean Currents Modulate Global Biogeochemical Cycles

by Susan Trumbore 14 January 202514 January 2025

Swirling currents called mesoscale eddies occupy about 22% of the ice-free Southern Ocean. Using data from drifting floats and satellites, scientists report the impact these eddies have on biogeochemical cycles.

Map of the Southern Ocean
Posted inEditors' Vox

An All-Community Push to “Close the Loops” on Southern Ocean Dynamics

by Luke G. Bennetts, Callum J. Shakespeare and Catherine A. Vreugdenhil 12 September 202412 September 2024

A new study highlights the connected nature of the Southern Ocean dynamic system, the research priorities needed to understand its influence on climate change, the importance of cross-disciplinary collaborations.

Satellite image of blue and green phytoplankton blooms in the Southern Ocea
Posted inResearch Spotlights

Climate Model Simulates Unusually High Heat over the Southern Ocean

Sarah Stanley, Science Writer by Sarah Stanley 21 August 202421 August 2024

U.K. researchers compare HadGEM3-GC3.1 simulations of near-surface air temperatures with those from other state-of-the-art models.

An ice floe floats in the Amundsen Sea close to the shore of West Antarctica.
Posted inFeatures

Confined at Sea at the End of the World

by Sofia Moutinho 23 May 202423 May 2024

Embedded on a research cruise in the Antarctic, a journalist joins a scientists’ “summer camp.”

Satellite image of a polynya (area without ice) in Antarctica. Most of the image is white snow or ice, but the polynya area is blue and green.
Posted inNews

Holes in Ross Sea Ice Grow and Shrink in Unexpected Cycle

by Amy Mayer 9 April 202411 April 2024

Changes in polynya area in the Ross Sea region off Antarctica follow a previously unidentified 16-year periodicity.

Un iceberg flota en el océano cerca de Antártica.
Posted inNews

La acidez del océano antártico aumentará rápidamente a finales del siglo

by Nathaniel Scharping 11 March 202411 March 2024

Nuevos estudios muestran que los niveles de acidez podrían llegar a duplicarse para el 2100, poniendo en peligro los ecosistemas frágiles del gélido Océano Austral.

A glacier in blue water
Posted inNews

El Niño May Have Kicked Off Thwaites Glacier Retreat

by Grace van Deelen 26 February 202428 February 2024

Antarctica’s “Doomsday Glacier” started losing mass midcentury, around the same time as its neighboring glacier.

An iceberg floats in the ocean near Antarctica.
Posted inNews

Antarctica’s Ocean Acidity Set to Rise Rapidly by Century’s End

by Nathaniel Scharping 9 February 202411 March 2024

New research shows acidity levels could as much as double by 2100, imperiling fragile ecosystems in the frigid Southern Ocean.

Model from the study.
Posted inEditors' Highlights

Overturning Ocean Water by Turbulence

by Nicolas Gruber 11 January 20248 January 2024

A high-resolution regional model of the Southern Ocean reveals how topographically induced mixing in the abyss is important in creating the water masses that can upwell back up to the surface.

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