How is the Arctic Ocean changing? – Research vessel Polarstern launches expedition to Arctic Ocean

Press release

Ocean Warming and Thawing Permafrost Reduce the Arctic Ocean's Biological Carbon Storage and CO2 Uptake

The Arctic experiences some of the most rapid climate changes on the planet, resulting in significant sea-ice melt. This transformation exposed the Arctic Ocean to increasing sunlight, driving a 56% rise [...] nutrients and carbon into the Arctic Ocean, delivered from rivers and coastal erosion. While it might seem logical that these additional nutrients would enhance the ocean’s biological carbon pump, - boosting [...] ecosystem impoverishment are undermining the pump’s efficiency, challenging assumptions about the Arctic’s ability to store carbon in a warming world.

Fish and squid found in the Central Arctic Ocean

in the middle of the Arctic Ocean. The results from Stockholm University, the Alfred Wegener Institute and colleagues in the European Fisheries Inventory in the Central Arctic Ocean (EFICA) Consortium are

The Arctic Ocean was covered by a shelf ice and filled with freshwater

the scientists could demonstrate that the Arctic Ocean as well as the Nordic Seas did not contain sea-salt in at least two glacial periods. Instead, these oceans were filled with large amounts of freshwater [...] Geosciences
The Arctic Ocean was covered by up to 900 m thick shelf ice and was filled entirely with freshwater at least twice in the last 150,000 years. This surprising finding, reported in the latest

Heat from Below: How the Ocean is Wearing Down the Arctic Sea Ice

Arctic Ocean
The influx of warmer water masses from the North Atlantic into the European marginal seas of the Arctic Ocean plays a significant role in the marked decrease in sea-ice growth, especially [...] evident a year later, when the ice has drifted towards Greenland via the North Pole and leaves the Arctic through Fram Strait. This study also includes data from the MOSAiC expedition.

Which types of jellyfish are there in the Arctic Ocean today – and which will still be there tomorrow?

research group, which will use cutting-edge technologies to create a jellyfish inventory for the Arctic Ocean. The group will receive financial support from the Helmholtz Association and the Alfred Wegener

New dataset reveals biological “treasure trove” of Arctic Ocean

A major new project will help benchmark biodiversity change in the Arctic Ocean and guide conservation efforts by identifying unique species and assessing their extinction risk. The research led by scientists

Intensification of Arctic Ocean eddy activity under global warming

Ocean Eddies
In a new study, researchers from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) investigated the long-term changes in the Arctic Ocean eddy activity [...] study reveals a remarkable surge in Arctic eddy activity in a warmer climate, a trend that is probably unparalleled when compared to other regions across the global ocean.

Week 7: In the deep Arctic Ocean

progress into the north significantly. During our journey in the thick ice across the deepening Arctic Ocean, wildlife became scarcer and scarcer. Patches of Melosira arctica were only spotted rarely.

Meltwater influences ecosystems in the Arctic Ocean

Arctic Ocean
In the summer months, sea ice from the Arctic drifts through Fram Strait into the Atlantic. Thanks to meltwater, a stable layer forms around the drifting ice atop the more salty seawater [...] team of researchers led by the Alfred Wegener Institute has now determined with the aid of the FRAM ocean observation system. Their findings have just been published in the journal Nature Communications.