The polar regions are a key driving force for the Earth's climate and oceans. With the Alfred Wegener Institute's research in the Arctic and Antarctic, we contribute to the understanding of the global climate [...] relating to the Arctic and Antarctic and is designated by the European Union as a central element of its joint polar research strategy. Another important EU project is ARICE, the Arctic Research Icebreaker [...] Icebreaker Consortium. Within its framework, international coordination of ship-based research in the Arctic is being expanded. ARICE will also give scientists from different countries access to a number of

Climate Research
The Arctic Ocean in summer will very likely be ice free before 2050, at least temporally. The efficacy of climate-protection measures will determine how often and for how long. These

(2017): Res- ponse to Filchner-Ronne Ice Shelf cavity warming in a coup- led ocean-ice sheet model - Part 1: The ocean perspective, Ocean Science, 13, 765-776 , doi: 10.5194/os-13-765-2017. Titelseite des Bu [...] n Buchprojekt Arktis Im Rahmen des wissenschaftlichen Projektes über die Arktische Verstärkung („Arctic amplification“; www. ac3-tr.de/) wurde in diesen Sommer (Mai-Juni 2017) eine große Messkampagne

AWI scientist Sinhué Torres-Valdés observed the nutrient chemistry of the Arctic Ocean on an expedition as part of the PEANUTS project (Primary production driven by Escalating Arctic NUTrient fluxeS). The SCRIPPS Institution of Oceanography led the expedition in 2018. The results have now been published in a paper in the journal Nature Communications. The PEANUTS project is funded by the Changing Arctic Ocean Program (CAO).

the ice of the Arctic, unknown habitats conceal an unexpected variety of living beings. On October 23rd, 46 scientists are expected to return to the home port in Bremerhaven from an Arctic expedition with [...] with the research vessel Polarstern. Over the past six weeks, they had explored life in ice, ocean and seabed with new robots and camera systems.

the establishment of the FRAM (Frontiers in Arctic marine Monitoring) Ocean Observing System improves our monitoring capacities. LTER Observatory HAUSGARTEN Ocean Observing System FRAM [...] Understanding the ocean, and the complex physical, biological, and biogeochemical systems operating within it, is a challenge for the opening decades of the 21st century. The establishment of multidisciplinary [...] multidisciplinary ocean observatories by the Alfred Wegener Institute will help to provide the means to accomplish this goal. Ecological time-series work at the LTER (Long-Term Ecological Research) site HAUSGARTEN

calculated with the assistance of global ocean models”. Researchers know far less about how the ocean acidification will impact the sea organisms and the “ocean ecosystem”. Effects on calcifying sea inhabitants [...] affects the oceans. But it took ten years after the working group started its research for the term ocean acidification to be coined, thereby also attracting more attention to the phenomenon. Ocean acidification [...] Institut) Especially the polar regions are affected by ocean acidification. (Photo: Alfred Wegener Institut) More about ocean acidification AWI Ocean Acidification Research Integrative Ecophysiology Marine

develops, runs and analyses global ocean biogeochemistry models, with a special interest in the polar regions. A special focus is on feedbacks between climate change and the ocean carbon cycle. The group hosts [...] (see Research ). We contribute to and coordinate the ocean carbon sink estimate in the Global Carbon Budget , particularly the ensemble of Global Ocean Biogeochemistry Models that includes FESOM-REcoM." [...] feedbacks in the carbon cycle and in the marine ecosystem, with a special interest in the Arctic and the Southern Oceans. Surface chloropyll a concentration in an eddy-resolving simulation (1 km horizontal

have now shown, the ocean may weaken warming around Antarctica and delay sea-ice retreat. Given that many models are not capable of accurately reflecting this factor and the role of ocean eddies, the study [...] Climate Research
Despite global warming and the sea-ice loss in the Arctic, the Antarctic sea-ice extent has remained largely unchanged since 1979. However, existing climate model-based simulations

look beyond the moorings and the Hausgarten into the Norwegian Sea and the Arctic Ocean. The Fram Strait connects the Arctic Ocean and the North Atlantic. Unlike the shallow water conjunction to the Pacific [...] Arctic long-term observatory FRAM 5,000 metres seawater plus ice separate the seafloor from boisterous life in the upper water layers of the Arctic Ocean. Additionally there is a strong change between [...] deep and thus the main region for exchange of water between the Arctic and the global oceans. Due to its importance for the global ocean circulation the Fram Strait has long since been a focus area of