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 ArcticOcean 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.
After eventful and busy months, the Arctic season ends this weekend with the Polarstern expedition called ArcWatch-1. The team of almost 100 crew and scientists measured sea ice thickness and properties [...] properties, recorded the currents and chemical properties of the ocean and investigated life in and under the ice, in the open water and at the bottom of the deep sea. Their data show significant changes compared [...] on 20 September there was the world's first livestream of an ROV under-ice dive from the Central Arctic.
of sea ice retreat on the entire ocean system from the surface to the deep sea. Eleven years ago, Antje Boetius was part of the largest ever sea ice minumum in the Arctic and its consequences for life in [...] the North Pole. For two months, a good fifty scientific expedition participants will explore the Arctic in transition as sea ice extent reaches its annual minimum in September. They will explore the biology [...] in the deep sea. Now she is returning with her team to compare the state of the Arctic today - also with the data from the MOSAiC expedition 2019/20.
Arctic cod is the most abundant fish in the ArcticOcean. It is an important food source for Arctic marine mammals and plays an important role in the self-sufficiency of the Inuit. An international study [...] now evaluated the most important scientific work on Arctic cod of the past decades. The conclusion: Above all, the already advanced decline in arctic sea ice cover as a result of man-made climate change
Due to intensifying sea-ice melting in the Arctic, sunlight is now penetrating deeper and deeper into the ocean. Since marine zooplankton respond to the available light, this is also changing their behaviour
the ArcticOcean. The four-week expedition, slated to end on 19 July in Tromsø, Norway, will focus on extended ecological fieldwork at the AWI’s deep-sea observatory Hausgarten and at the FRAM Ocean Observing
Research aircraft from the Alfred Wegener Institute have been surveying the ice-covered ArcticOcean for 30 years. The immense effort of the past 52 expeditions has paid off: 40,000 km of measurement data [...] aeroplane- and helicopter-based measurement series in the world that has been carried out in the Arctic over such a long period. Currently, two Basler BT-67 aircraft are in operation: the Polar 5 and Polar
We know little about the fish stocks in the central ArcticOcean, and what we know about the local ecosystem is insufficient to ensure sustainable management. In response, in June 2021 the Agreement to [...] to Prevent Unregulated High Seas Fisheries in the Central ArcticOcean – which includes a moratorium on fishing in the region – entered into force. The European Union and nine other countries signed the
million metric tons of CO 2 in the Arctic deep sea for millennia. In this region alone, a previously unknown transport route uses the biological carbon pump and ocean currents to absorb atmospheric CO 2
Over the past 200 years, our planet’s oceans have absorbed more than a quarter of all anthropogenic carbon dioxide from the atmosphere. As a result, their acidity has increased by nearly 30 percent their [...] recently demonstrated. If this comes to pass, it could have far-reaching consequences for life in the ocean, as they report in the journal Nature.