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.

Circulation in the Arctic Ocean and the Nordic Seas

the Arctic Mediterranean. The Arctic Ocean freshwater budget The Arctic Ocean freshwater budget A particular feature of the Arctic Ocean is the enormous freshwater surplus. The upper Arctic Ocean receives [...] cover makes the Arctic Ocean distinct from subarctic oceans – the presence of ice, as well as ice formation and melt significantly shape the circulation and water masses of both the Arctic Ocean and the Nordic [...] Circulation in the Arctic Ocean and the Nordic Seas The Arctic Ocean and the Nordic Seas are integral parts of the Atlantic meridional overturning circulation, and hence key regions for the global climate

Long-term observations in the Arctic Ocean

Long-term observations in the Arctic Ocean Schematic of ocean circulation between the Arctic and neighbouring oceans: warm water paths (red), cold/fresh polar water paths (blue), regions of AWI focus in [...] circulation in the Eurasian Basin of the Arctic Ocean from the 1990s to the late 2000s ,OS Special Issue: Ice-Atmosphere-Ocean interactions in the Arctic Ocean during IPY: the Damocles project, 9 (1), [...] Fram Strait / West Spitsbergen Atlantic Water is the main oceanic source of heat, salt, and nutrients of the Arctic Ocean. It enters the Arctic Ocean through the Barents Sea or Fram Strait. In the eastern

Transdrift: Arctic Ice-Ocean-Interaction

Transdrift: Arctic Ice-Ocean-Interaction Understanding changes that appear at the major flux gates such as the Fram Strait , requires a closer look at the origin of the ice leaving the Arctic Ocean. It is assumed [...] significant regions of net ice production and export. Given the importance of the Laptev Sea for the Arctic Ocean sea ice budget, aim of the Russian-German Research Cooperation “Laptev Sea System”, is to investigate

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.

Changing Arctic Ocean

the Changing Arctic Ocean programme is to understand how the changing physical environment will affect the large-scale ecosystem structure and biogeochemical functioning of the Arctic Ocean. The two key [...] field analysis in the Arctic Ocean . Arctic Special Issue, Phil Trans Royal Soc. (submitted) Literature: Castellani, G., M. Losch, B. A. Lange, and H. Flores (2017), Modeling Arctic sea-ice algae: Physical [...] applied to understand how the Arctic marine system will respond to ongoing changes that include thinning of sea ice, declines in nutrient inventories and freshening of Arctic Ocean surface waters. We will answer

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