and AWI-ESM to analyze how wave-driven mixing in the warming Arctic affects the ocean state and dynamics and test whether there indeed is a positive feedback loop between sea ice melt on the one hand [...] other hand. Lastly, we will explore how these changes within the Arctic affect processes beyond, like deep-water formation and overturning in the (North) Atlantic Ocean. Friederike Pollmann | Ekaterina Bagaeva | Gabriela Amaral Wasielsky Arctic Gates The ARCTIC GATES project investigates whether reducing the export of sea ice through key Arctic gateways, particularly the

physical properties of the Central Arctic Ocean (CAO). Only the observation of baselines, variability, and trends can provide solid evidence for change in biogeochemical and [...] Here much of the anthropogenic carbon is taken up by the ocean, and glacial ocean carbon storage in the deep Southern Ocean is well established ( Brovkin et al., 2012 ). Changes in Southern Ocean [...] , and carbon from the Siberian shelves to the central Arctic Ocean. A GEOTRACES expedition in 2015 revealed that ice formed above shelf sediments provided the main source of trace elements and

fitness and interactions with other organisms. In the open ocean, pelagic animals like zooplankton perform vertical migrations that actively shape the realized environmental cycles that they [...] Calanus finmarchicus during the summer solstice in the high Arctic L Hüppe, L Payton, K Last, D Wilcockson, E Ershova, B Meyer Biology Letters 16: 20200257 (2020) doi.org/10.1098/rsbl.2020.0257 [...] Rhythmic Transcriptome in Calanus finmarchicus during the High Arctic Summer Solstice Period L Payton, L Hüppe, C Noirot, C Hoede, KS Last, D Wilcockson, E Ershova, S Valière, B Meyer iScience 24: 101927

Litter Plastic has reached even the most remote corners of the ocean. The AWI is not only investigating the scale and impacts of the problem; it's also contributing the expertise to political [...] based on blue-green algae … Find out more The pulse of the Arctic The ‘Arctic PASSION’ project provides environmental data from the Arctic for the local population, for science and for local politics Find out more Putting permafrost in the classroom The Arctic’s frozen soils are thawing – with consequences for climate and humans. Together with partner schools in Germany, schoolchildren from

The sea ice in the Arctic has several key functions in the Earth's climate system: it reflects large parts of the solar radiation, thus slowing down global warming and it drives global ocean and air currents, which has a direct impact on the weather outside our window. How the sea ice retreats or expands depends largely on the energy balance of the Arctic Ocean surface. However, there is a lack of data from direct observations, meaning that studies have to rely on modelling with

heatwaves have been taking an ever-greater toll on the world’s oceans and their ecosystems. Amplified by increasing global warming, these events are occurring more frequently and lasting longer. The Arctic is not spared from this trend either, as it is warming faster than any other region on our planet. However, due to local processes and conditions, marine heatwaves in the Arctic differ fundamentally from those in non-polar oceans. A recent study, led by the Alfred Wegener Institute, in the journal Communications

Ocean Biogeochemical Modelling The biogeochemical modelling group aims at achieving an understanding of diverse feedbacks between [...] physiology (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 [...] 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 resolution) in the Fram

Brochures and Reports Fact sheet Svalbard Germany in Arctic research The collaborative framework of AWI’s Antarctic research Marine Protected Area in the Weddell Sea Arctic Council Shipping in the Arctic Arctic and Antarctic – more differences than similarities? Arctic Governance Tourismus in Polar Regions EU Engagement in the Arctic [...] in the Polar Regions Knowledge on fish and their ecology in the Arctic Ocean The Greenland Ice

DAM aims to strengthen the sustainable use of coasts, seas and oceans through research and transfer, data management and digitalisation, and by coordinating the infrastructures. To this end, the DAM is [...] Alaska Fairbanks United States Norwegian Polar Institute Norway Arctic and Antarctic Research Institute (AARI) Russia University of Tromso (UiT) Norway IFREMER France Woods Hole Oceanographic Institution

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