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Antarctica

Iron-rich brine can be seen flowing from the Taylor Glacier during researchers’ 1969–1970 Antarctic field season.
Posted inNews

Charting the “Bloody” Brine Flows from an Antarctic Glacier

by McKenzie Prillaman 17 December 202117 December 2021

Photographs and field observations yield a more complete historical record of the ebbs and flows of the so-called Blood Falls on Taylor Glacier.

The meeting point of the Pacific Ocean and the Tasman Sea
Posted inResearch Spotlights

Current History: Exploring the Past of the Tasman Leakage

by Elizabeth Thompson 17 November 20211 February 2022

A new study sheds light on an important Pacific-to-Atlantic connecting current, including the global changes that led to its flowing that ushered in near-modern ocean circulation.

Image of a bearded and gloved man, Robert Mulvaney, with ice inside a metal corer.
Posted inNews

Māori Arrival in New Zealand Revealed in Antarctic Ice Cores

by Kate Evans 26 October 202121 March 2022

A new study shows smoke from fires set by the first inhabitants of Aotearoa from around 1300 left a mark in the ice 6,000 kilometers away, on an island off the Antarctic Peninsula.

A photograph of polar stratospheric clouds near Kiruna, Sweden.
Posted inEditors' Vox

New Insights into Polar Stratospheric Clouds

by Lamont R. Poole 18 October 202126 April 2022

New satellite observations of polar stratospheric clouds have advanced our understanding of how, when, and where they form, their composition, and their role in ozone depletion.

Project design of the Antarctic station Comandante Ferraz projected by Estúdio 41.
Posted inNews

Brazil’s Antarctic Station Rises from the Ashes

by Meghie Rodrigues 2 August 20216 December 2021

The sophisticated new research station will allow for better science on the icy continent.

A researcher leans against a snowmobile amid a vast snow-covered area in Antarctica
Posted inScience Updates

A Vital Resource Supporting Antarctic Research

by S. M. Carbotte, F. Nitsche, A. Pope, N. Shane and K. Tinto 5 April 202122 March 2022

The U.S. Antarctic Program Data Center is providing new services to help scientists document, preserve, and disseminate their research and to facilitate reusability of a wide range of valuable data.

The new heat-flow map of Antarctica.
Posted inEditors' Highlights

Taking the Temperature of Antarctica’s Crust

by S. Lebedev 15 March 202110 March 2022

How do you measure the geothermal heat flux in a continent covered by an ice-sheet? A new study uses correlations of diverse global observables and produces a heat flow map of the entire Antarctica.

Map of the Southern Ocean showing the flux of carbon dioxide determined from the USV measurements during the 196-day circumnavigation of Antarctica
Posted inEditors' Highlights

Robot Measures Air-Sea Carbon Dioxide Exchange in Southern Ocean

by J. Sprintall 22 February 202118 November 2021

Unique air and ocean surface observations of the Southern Ocean from a 22,000 km, 196-day circumnavigation around Antarctica by an Uncrewed Surface Vehicle.

A rocky hillside in Antarctica with snow-covered Mount Erebus in the background
Posted inResearch Spotlights

Antarctic Lava Yields Clues to Earth’s Past Magnetic Field

by Sarah Stanley 3 February 20214 October 2021

A new analysis suggests that a widely accepted approximation of ancient magnetic field strength may be less accurate for the past 5 million years than previously thought.

Iceberg that has broken off from the Antarctic ice sheet
Posted inNews

Gravity Data Reveal Unexpected Antarctic Ice Variations

by S. Melchor 7 December 202029 September 2021

A new analysis of long-term satellite records shows the East Antarctic Ice Sheet is unexpectedly dependent on fluctuations in weather. This study may improve models of how much sea levels will rise.

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