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

deep sea has started to increase and today we know that the deep ocean on planet Earth hosts an enormous diverse deep-seabed life. Biodiversity in the deep sea depends among other parameters on water [...] rate of recent climate change challenges the resilience of Arctic life. The entire system is likely to be severely affected by changing ice and water conditions, varying primary production and food [...] transition zone between the northern North Atlantic and the central Arctic Ocean, and to determine the factors controlling deep-sea biodiversity, the Alfred Wegener Institute established the LTER (Long-Term

‚FESOM-REcoM‘ and investigated its role in the fastest changing ocean in climate change, the Arctic Ocean. This research is continued as part of my PhD project, where I am investigating new arising habitats and carbon pathways in the future Arctic Ocean. Tanvi Nagwekar (PhD Student) I have a bachelor with Physics major and a master degree in Atmospheric Sciences. For my master [...] and provide a robust quantification of the coastal and open ocean carbon sink. Dr. Miriam Seifert (Postdoc) With a Master’s degree in marine biology and several field trips to the Arctic, I entered

Özgür Dr. Laurent Oziel Postdoc I monitor physical changes in the Arctic environment (Ocean currents, water masses, mesoscale features, mixing, sea ice…) and study their impacts on phytoplankton dynamics [...] the BMBF nuArctic projects. nuArctic investigates nutrient remineralization combining modelling experiments with observations from the MOSAiC expedition [...] examined the decadal variability of the carbon cycle in the Indian Ocean region. For the Ph.D. I am doing Ocean Biogeochemical Modeling for Ocean Alkalinity Enhancement in deep and bottom water formation

:// www.youtube.com/channel/UCxseMj2r9jMDq-LjKzUOIVg/featured Arctic Ocean MSM93 expedition contribution to newsletter of German Science Foundation Transregio Arctic Amplification: www.ac3- [...] /tausendstel-millimeter-gross-aber-echte-giganten/85718382 Arctic Ocean MSM93 expedition highlighted in the German newspaper “Süddeutsche Zeitung” 6 Nov 2020: https :// www.sueddeutsche.de/wissen/ [...] great-potential-for-comprehensive-monitoring-of-the-water-masses-in-the-ocean.html

and sources of hydrothermalism at Gakkel Ridge of the Central Arctic. Such integrated studies of ultraslow oceanic spreading zones are rare, because the most extensive of these systems, the Arctic

scales of phyoplankton activity (Graphic: Phytochange) Focus – The Arctic is warming faster than any other oceanic region of the planet and its sea-ice cover is declining faster than models predict. Due to [...] in sea-ice cover and stratification, the productivity in the Arctic Ocean may transition from being predominantly light-controlled to being more nutrient-controlled. Also, the phenomenon of ocean [...] observatory 'Hausgarten' in the Fram Strait, which connects the Arctic and the Atlantic Ocean. Different from the shallow Aleutian connection to the Pacific, this connection is 5569 meters deep, making

Energy Budgets Schematics of energ fluxes in ice covered oceans (Photo: Stefanie Arndt, AWI) The radiation budget of sea ice dominates the sea-ice energy balance and the exchange of energy between the atmosphere and the ocean in ice-covered regions. We are focusing on solar short-wave radiation and work on quantifying the amount of sun light that is [...] high-quality and comprehensive data sets from remote regions of the Arctic and Antarctic. Contact: Dr. Marcel Nicolaus Dr. Ran Tao Surface albedo of ice-covered regions in the Arctic and Antarctic mostly

section, where it is constantly being refined. Unlike traditional ocean models, which are based on structured grids, FESOM uses triangle-based unstructured grids to simulate ocean currents, hydrography [...] and represents one of the most important connections between the Arctic Ocean and the North Atlantic. In the past few years, we’ve seen a major decline in Arctic sea ice in the region. In addition, more [...] . Right now, I’m working with a regional climate model for the Arctic. The model consists of several components: the atmosphere, sea ice, ocean and land. Simulations with this model help us interpret

2016 we set sail for the long passage from Bremerhaven to the Arctic. We, that is 45 crew members and a total of 51 scientists, engineers, technicians and students with the common goal to conduct [...] in the atmosphere, the water column and at the seafloor of the Arctic Ocean.