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

vertical profiles of water mass properties in the ice-covered oceans. The systems are moored on the ice and measure temperature, salinity, and pressure in the upper 800 to 1000 meters of the water [...] example, to study changes in the freshwater content of the upper Arctic Ocean, as in the NORTHATLANTIC project. Together with higher-precision data from ship-based expeditions, the data from these autonomous [...] measuring systems is coordinated through the International Arctic Buoy Programme. Contacts Dr. Benjamin Rabe +49(471)4831-2403 Benjamin Rabe@awi. Dr. Mario Hoppmann +49(471)4831-2907 Mario.Hoppmann

Seismology in (sub)polar oceans Contact Prof. Dr. Vera Schlindwein Seismology in stormy oceans In the stormy „Furious Fifties“ we succeeded for the first time to recover ocean bottom seismometers after a recording period of one year (expedition SWEAP of RV Polarstern). Reliable weather and sea state forecasts [...] 100% (Expedition PS137 of RV Polarstern). The data show that the Arctic Ocean offers good recording conditions for earthquakes due to the unprecedentedly low seismic noise. Test of the prototype ice-OBS

Long-term observations in the Arctic and Southern Ocean Arctic Ocean The Arctic is an environment where global climate change is strongly manifested. The Arctic Amplification, represented by the atmospheric warming trend in the Arctic being about three times that of the global average, is also manifested in sea-ice and… Find out more Southern Ocean The oceans are [...] to extract and store heat and CO2 from the atmosphere. Polar oceans are of particular Find out more

to make a joint effort to enclose the Arctic Ocean with hydrographic observation lines (Figure 1). A method to treat the Arctic as a single box bounded by hydrographic lines [...] understand the Arctic Ocean’s role on the carbonate system. Figure 2: Net oceanic and sea ice FW transport (m3s-1) time series. The transport estimate [...] of pan-Arctic mooring array monitor the major oceanic heat and FW exchanges between the Arctic Ocean and surrounding Oceans? (2) Where is the most

century hydrographic measurements have been carried out in the Arctic Ocean. Although today the Arctic is a hotspot of climate change, data sampling is still sparse due to the large sea ice cover. Yet [...] (471)4831-1856 Axel.Behrendt @ awi.de The „Unified Database for Arctic and Subarctic Hydrography“ (UDASH) is an attempt to gather all publicly available temperature and salinity data for the Arctic Ocean [...] the data will be used to create a gridded product and an updated Arctic Ocean climatology. This work was funded by the FRAM project: www.awi.de/en/expedition/observatories/ocean-fram.html Publication :

FESOMx – The next-generation Finite volumE Element Sea Ice-Ocean Model, designed for: High performance (GPU-ready, Python-based, mixed-precision). Modular and scalable design for easy adaptation. [...] Science AI-driven emulators and foundation models for: Sea ice, ocean, and climate systems. High-resolution downscaling for local climate insights. AI-based diagnostics for tracking ocean eddies and [...] Polar Prediction AWI Coupled Prediction System (AWI-CPSv3) for Arctic and Antarctic forecasts.

The Alfred Wegener Institute has several decades of experience in ocean simulation and earned an international reputation for developing the global ocean/sea-ice model FESOM, which doesn’t divide the [...] model specific ocean regions – those where deep water forms, or those with an abundance of eddies, like the Gulf Stream and the Southern Ocean – in [...] Dr. Helge Gößling. jpg | 340 KB Media Phys.org | 25.12.2019 Can Arctic 'ice management' combat climate change? Find out more > Euronews Green | 22.11.2019 Walking on thin ice in the Arctic? Find out more

, T. , Mamnun, N. , Liu, X. and Nerger, L. (2023): Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations , Ocean-Land-Atmosphere Research, 2 . doi: 10.34133 [...] Survey Areas BS - Beaufort Sea BaS - Barents Sea CAO - Central Arctic Ocean CS - Chukchi Sea FS - Fram Strait GS - Greenland Sea LaS - Laptev Sea LiS - Lincoln Sea IceBird Impressions IceBird-Impressions [...] Selected Media 30-years of AWI airborne survey in the Arctic , AWI, press release Time surveys and neckties at Dinner , New York Times The Tech Ice Hunters Use to Track the Arctic Melt , Wall

Angelina Kraft, Gordon Lax, Eva-Maria Nöthig Research The Arctcic Ocean reacts more sensitive to Gloabal Change than other oceans. Sea ice strongly decraeses, temperatures rise at least twice as much, [...] such as FRAM, LTER HAUSGARTEN, PEBCAO in different regions of the Arctic Ocean. The main goal of our arctic research is to understand and follow seasonal and interannual fluctuations of particle formation [...] and 2013, during summer months. While in FRAM strait and on the arctic shelves, a relatively high proportion of biomass was being observed, the proportion of biomass in central Arctic, sea ice covered