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13 November 2017
New Antarctic heat map reveals sub-ice hotspots
An international team of scientists, led by British Antarctic Survey (BAS), has produced a new map showing how much heat from the Earth’s interior is reaching the base of the Antarctic Ice Sheet.
11 October 2017
Secrets of hidden ice canyons revealed
In a new study, scientists have discovered huge canyons cutting through the underbelly of Antarctica’s ice shelves, meaning they may be more fragile than previously thought. Thanks to the CryoSat and Sentinel-1 missions, new light is being shed on this hidden world.
31 August 2017
Record-low 2016 Antarctic sea ice due to ‘perfect storm’ of tropical, polar conditions
While winter sea ice in the Arctic is declining so dramatically that ships can now navigate those waters without any icebreaker escort, the scene in the Southern Hemisphere is very different. Sea ice area around Antarctica has actually increased slightly in winter — that is, until last year. A new study shows the lack of Antarctic sea ice in 2016 was in part due to a unique one-two punch from atmospheric conditions both in the tropical Pacific Ocean and around the South Pole.
21 June 2017
Extraordinary storms caused massive Antarctic sea ice loss in 2016
Antarctic sea ice – frozen ocean water that rings the southernmost continent – has grown over the past few decades but declined sharply in late 2016. By March of 2017 – the end of the Southern Hemisphere’s summer – Antarctic sea ice had reached its lowest area since records began in 1978. Puzzled scientists wanted to know why.
8 May 2017
Bands of extra-tough ice slow down cracks in Antarctica’s Larsen C ice shelf
The stability of the Antarctic Peninsula’s largest ice shelf may depend upon stripes of extremely strong ice running down its spine, a new study finds.
13 April 2017
Researchers unravel drivers of large iceberg movement
Researchers have succeeded in modeling how Antarctic icebergs drift through the Southern Ocean, and in identifying the physical factors behind their movement and their melting. Which factors are most important tends to depend on the size of the iceberg in question
1 March 2017
WMO verifies highest temperatures for Antarctic Region
A World Meteorological Organization (WMO) committee of experts has announced new records for the highest temperatures recorded in the Antarctic Region as part of continuing efforts to expand a database of extreme weather and climate conditions throughout the world.
31 August 2016
A note on Arctic sea ice loss
This is the latest in a series of dispatches from scientists and education officers aboard the National Science Foundation’s R/V Sikuliaq. Read more posts here. Track the Sikuliaq’s progress here. By Kim Kenny We probably won’t see much of this view during our trip – fragments of ice in the ship’s wake, a thin white sheet stretching to the horizon. We’re more likely to see the endless blue of 2°C …
9 May 2014
New study brings weaknesses of Southern Ocean geoengineering to the surface
A plan to reduce carbon from the atmosphere by adding large amounts of iron to the Southern Ocean around Antarctica may not be as effective as previously thought, according to new research.
6 December 2012
Rocky “Bumps” Anchor Antarctic Glaciers
When glaciers have rock to cling to, they hold on tight. Luckily for us, a ridge of rock lines the edge of an expansive Antarctic glacier that might otherwise – without the ridge – be rapidly retreating and raising global sea level.
GeoSpace is a blog on Earth and space science, managed by AGU’s Public Information staff. The blog features posts by AGU writers and guest contributors on all sorts of relevant science topics, but with a focus on new research and geo and space sciences-related stories that are currently in the news.