part of projects 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 [...] , 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 [...] 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 waters is relatively low

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 Street Journal Measuring Arctic Ice Melt from the [...] erived radar freeboard of Arctic sea ice. Geophysical Research Letters , 50, e2022GL100696. doi.org/10.1029/2022GL100696 Shi, H. et al . (2023), Estimation of Arctic Winter Snow Depth, Sea Ice [...] 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/olar.0025

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 ocean’s surface into regular quadrilaterals [...] makes it possible to 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 impressive detail. At the same time [...] 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 > Dialogue & Lectures Policy

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 other key processes. AI-powered [...] Climate Change Investigating fundamental climate processes, including: Large-scale atmospheric and ocean circulation. Climate variability and long-term climate trends. The role of polar regions in shaping [...] simulations, and theory. Model Development FESOMx – The next-generation Finite volumE Element Sea Ice-Ocean Model, designed for: High performance (GPU-ready, Python-based, mixed-precision). Modular and scalable

Since the early 20th 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 [...] climate studies in the Arctic Ocean. Many of the collected data are publicly available, but scattered across different electronic archives. Consequently, scientists working on Arctic climate change have to [...] 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 and to provide them on a high quality

ut) The Arctic boundary has been observed over many years to better understand and monitor the exchanges between the Arctic Ocean and its neighboring oceans. The unique geometry of the Arctic—surrounded [...] the Arctic Ocean with hydrographic observation lines (Figure 1). A method to treat the Arctic as a single box bounded by hydrographic lines and land has been developed recent years. This pan-Arctic approach [...] monitor the major oceanic heat and FW exchanges between the Arctic Ocean and surrounding Oceans? (2) Where is the most efficient place to add additional instruments to increase the accuracy of measurements?

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 [...] 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 key elements of the global climate [...] system, not at last due to their ability to extract and store heat and CO2 from the atmosphere. Polar oceans are of particular Find out more

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 [...] when the ice cover is almost 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 [...] originating at the Southwest Indian Ridge now provide unprecedented insight into the formation of new ocean lithosphere. Lucky OBS recovery in snowy darkness Getting help with OBS recovery Seismology under

collected data can be used, for 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 [...] drifting measurement platforms that record 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 [...] online. The deployment of 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

the Arctic Mediterranean. The Arctic Ocean freshwater budget The Arctic Ocean freshwater budget A particular feature of the Arctic Ocean is the enormous freshwater surplus. The upper Arctic Ocean receives [...] cover makes the Arctic Ocean distinct from subarctic oceans – the presence of ice, as well as ice formation and melt significantly shape the circulation and water masses of both the Arctic Ocean and the Nordic [...] 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 hence key regions for the global climate