Press release

the Arctic Ocean to increasing sunlight, driving a 56% rise in organic matter production through photosynthesis (net primary production) over [...] due to warming, releasing more 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 [...] 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 Ocean and the Nordic Seas are integral parts of the Atlantic meridional overturning circulation [...] and water masses of both the Arctic Ocean and the Nordic Seas, which form the Arctic Mediterranean north of the Greenland Scotland Ridge. The reduction of the Arctic [...] Scotland Ridge, which closes the cyclonic circulation through the Arctic Mediterranean. The Arctic Ocean freshwater budget The Arctic Ocean freshwater budget A particular feature of the Arctic Ocean is

have found fish and squid in deep water 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 published today in the scientific journal Science Advances .

rising temperatures are melting more and more frozen ground in the Arctic. This dissolved matter contains large amounts of organic carbon which is flowing into the central Arctic ocean. In a new study, [...] how much terrestrial organic matter accumulates in the central Arctic Ocean. Using chemical fingerprints, they were able to assess how fast it degrades, thus releasing additional CO2 to the ocean. These [...] are an important basis to project how inputs from land affect Arctic marine ecosystems and the ability of the ocean to store CO2 in a warming climate. The results are published in the journal Nature

a massive, kilometre-thick ice shelf once covered the entire Arctic Ocean during the coldest phases of the Ice Ages. A new study, now published in Science Advances , questions this idea. The research team found no evidence of such a permanent, pan-Arctic ice shelf. Instead, the Arctic Ocean appears to have been covered by seasonal sea ice, allowing open water—and life—to persist even [...] past 750,000 years. This discovery sheds new light on how the Arctic has responded to climate extremes in the past—and how it may evolve in the future.

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 [...] of water masses and 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 [...] awi.de 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

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. [...] of marine deposits, 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

Arctic Ocean
The influx of warmer water masses from the North Atlantic into the European marginal seas of the Arctic Ocean plays a [...] has drifted towards Greenland via the North Pole and leaves the Arctic through Fram Strait. This study also includes data from the MOSAiC expedition.

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 Institute.