Arctic climate. As a contribution to the ArcSolution project we will simulate the oceanic advection of pollutants from their sources with a global version of the sea-ice-ocean model FESOM2 with about 7 km spatial resolution in the Arctic and Nordic Seas. Atmospheric predictions from climate models of the [...] changing Arctic climate and the impacts of oceanic and atmospheric processes under a range of plausible scenarios. Doing so, we aim to provide not

Dr. Gabriele Uenzelmann-Neben Dr. Karsten Gohl Extent of the Arctic ice sheets during the last glacial (Graphic: Catalina Gebhardt) In contrast to the continent Antarctica, the Arctic region consists of a large marine basin. Therefore, Arctic ice sheets are located on its surrounding land masses. At present, the only existing ice sheet is found on Greenland, but in the [...] During their maximum extent, these ice sheets reached far into the Arctic Ocean, and signs of glacial overprint can be found as far north as at the North Pole. Many studies have shown that the onset of the

, information on the geological history of the Arctic Ocean is still sparse. As the sea-ice recedes, the Arctic Ocean will see an explosion of research activities. With RV Polarstern, [...] techniques , AWIs geophysics group has played a leading role in Arctic Ocean geophysical research for many years and in various projects. Projects Formation of new seafloor at the Arctic Mid-Ocean Ridge International Bathymetric Chart of the Arctic Ocean (Photo: Alfred-Wegener-Institut)

Oceanic microseisms - formation, propagation and interaction with sea ice When waves break on the high seas or on the beach, they create [...] ice-going ocean-bottom seismometers (OBS) . These were deployed in ice-covered areas to investigate, for example, submarine volcanism and the [...] were also recorded, which we are currently analysing. Map of the Arctic and Antarctic. The red stars mark the oceanic microseisms research projects. (Graphic: Alfred-Wegener-Institut) Contact An ice-going

Sea. The overall objective is to develop a smart and flexible ocean observation strategy tailored to the specific observation needs of individual stakeholder groups. Observation and prediction methods [...] diversity of the entire plankton community of the Fram Strait (Arctic) is assessed. This data is then applied to forecast future scenarios of Arctic planktonic biodiversity. Recommendations to policy

the pathways of the oceanic circulation and the evolution and dynamic of ice sheets, which form a key component in the long-term simulation of palaeo-climate [...] form the base for new IODP/ICDP drill proposals. Formation of the Arctic Basin Polarstern for geophysics in the Arctic Ocean Research projects on the formation of the Arctic Ocean Development of the North [...] and its precursors? Follow this link Gateways of the Southern Ocean What was the effect of the opening of the gateways of the Southern Ocean? Lakes as climate archives Old lake-level terraces at the

mapping initiatives including the General Bathymetric Chart of the Oceans (GEBCO) , the International Bathymetric Chart of the Arctic Ocean (IBCAO) ,the International Bathymetric Chart of the Southern Ocean [...] 2030) , a project with the ambitious goal to map the world’s oceans by 2030, and hosts the Seabed 2030 Southern Ocean Regional Center (SORC) . SORC’s and IBCSO’ s responsibility is to produce the best possible authoritative map of the Southern Ocean, the South Atlantic, South Pacific, and South Indian Ocean south of 50°S. The maps we produce are all publicly available in PANGAEA

southward, where they absorb heat and moisture over the open ocean. This perspective explains two different types of atmospheric conditions observed in winter during Arctic expeditions like MOSAiC: [...] change in the Arctic. On the one hand it is close to the Atlantic water inflow to the Central Arctic Ocean, and on the other hand it is located along [...] coordination of the station. Antarctic To be filled! Text is missing Arctic Ocean (Central Arctic) FS Polarstern MOSAiC (Photo: M. Gutsche) The polar oceans in the Arctic and around Antarctica, characterized

we determine the δ 18 O values in ice and water samples from the Arctic and Antarctic, as well as the δ 13 C values of dissolved inorganic carbon in the water of the polar oceans. In addition, our [...] δ 18 O (seawater) Capturing modern hydrological processes in the ocean (T,S, stratification); T-S-signatures of different water masses MAT253 + EA IsoLink CN (is in acquisition; available from autumn [...] the supply of nutrient silicon and its use in polar and subpolar ocean regions (e.g. Southern Ocean, North Pacific) can be reconstructed on geological time scales. For the measurements, pure diatom-,

The winter growth period for sea ice in the Arctic Ocean is now over, with levels at a record low. The winter ice extent on 21 March 2025 was lower than at any time since continuous [...] kilometres below the long-term average. As in February 2025, average Arctic sea ice cover remained at an all-time low for the entire month of March, equalling the previous low set in 2017.