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Southern Ocean

Posted inEditors' Highlights

An Inherently Noisy Ocean Can Disguise Regional Sea Level Trends

by J. Sprintall 11 February 201921 February 2023

Sea level trends in different regions of the ocean caused by both natural and man-made changes in the atmosphere can be partially hidden by internal random processes intrinsic to the ocean.

View of the Ross ice shelf from the OGS Explora, 9 February 2017.
Posted inScience Updates

Exploring the Unknown of the Ross Sea in Sea Ice–Free Conditions

by Laura De Santis, Florence Colleoni, A. Bergamasco, M. Rebesco, D. Accettella, V. Kovacevic, J. Gales, K. Sookwan and E. Olivo 11 October 201810 November 2022

A team of polar scientists aboard the OGS Explora, cruising in rare ice-free conditions, discovered new evidence of ancient and modern-day ice sheet sensitivity to climatic fluctuations.

Researchers combine estimates of sea surface height and circulation patterns in the Southern Ocean to see the bigger picture.
Posted inResearch Spotlights

A Complete Picture of Southern Ocean Surface Circulation

Kate Wheeling, freelance science writer by Kate Wheeling 30 April 20188 June 2022

For the first time, researchers combine estimates of sea surface height and circulation patterns in both ice-covered and ice-free regions of the Southern Ocean.

Researchers track carbon dioxide trends in the Southern Ocean to better understand one of the world’s largest carbon sinks
Posted inResearch Spotlights

Shedding Light on the Southern Ocean Carbon Sink

by S. Witman 22 February 201817 August 2022

One of the world’s largest carbon sinks is still poorly understood.

R/V Laurence M. Gould casts a shadow on an iceberg along the West Antarctic Peninsula.
Posted inScience Updates

Understanding a Changing West Antarctic Peninsula

by K. Hendry, S. Henley and Oscar Schofield 13 October 20175 October 2022

The 1st Workshop of the SOOS WAP Working Group; Cambridge, United Kingdom, 15–16 May 2017
In Icy Waters: The Future of Marine Biogeochemical Research off the West Antarctic Peninsula; Chicheley, United Kingdom, 17–18 May 2017

Posted inEditors' Vox

Warm Waters in West Antarctica

by J. Turner and H. Gudmundsson 16 June 201725 January 2023

A recent paper in Reviews of Geophysics describes the atmospheric and oceanic processes that are causing ice loss in the Antarctic.

Elephant seals, one with a scientific instrument glued to its head.
Posted inNews

Elephant Seals' Dives Show Slowdown in Ocean Circulation

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 23 August 20168 June 2022

Data from instruments mounted on elephant seals reveal that melting ice flushes fresh water into the Southern Ocean, suppressing an important arm of the global ocean circulation belt.

Measures of current and pressure in the Southern Ocean show their effect on the Antarctic Circumpolar Current.
Posted inResearch Spotlights

What Steers Antarctica's Largest Current?

Alexandra Branscombe by A. Branscombe 11 August 201622 July 2022

Scientists have observed that pressure from current-seafloor encounters drives the direction of the massive Antarctic Circumpolar Current in the Southern Ocean.

Phytoplankton blooms help to cycle nitrate in the Southern Ocean.
Posted inResearch Spotlights

A New Mechanism for Nitrogen Cycling in the Southern Ocean

Sarah Stanley, Science Writer by Sarah Stanley 29 July 201617 August 2022

A nitrite-oxidizing enzyme may work in reverse for some microbes in the Antarctic autumn.

Mollusk shells reveal ocean warming episodes.
Posted inNews

Climate Warming May Have Helped Kill the Dinosaurs

Amy Coombs by A. Coombs 14 July 20162 March 2023

New evidence indicates ancient warming spells that coincided with prodigious volcanism and a powerful meteorite impact, both seen as possible causes of mass extinctions about 66 million years ago.

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