Airborne Observations In, Below and Above Arctic Clouds Map of the areas for aircraft operation illustration the coordination activities at Polarstern and Ny Alesund (Photo: [...] embedded in the Transregional Collaborative Research Centre TR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms (AC)³. The general goals of both aircraft [...] better understand and quantify the role of clouds in the lower Arctic atmosphere. A special focus is on the amplified climate change in the Arctic. To that aim measurements during ACLOUD and AFLUX were

atmospheric processes and their interactions with sea ice and ocean in the global context. We combine long term observations from ground stations and innovative measurements from airborne platforms [...] processes in regional to global scale climate models. We run the Arctic research station AWIPEV on Svalbard and the meteorological and atmospheric observatory at the Antarctic research station Neumayer

whose shared aim is to investigate the evolution of the central Arctic Ocean during past warm and super-warm climate states and to better understand how major bathymetric structures — the Lomonosov Ridge [...] Alpha Ridge, and the Morris Jesup Rise and Spur — have influenced ocean circulation, sedimentation, and sea-ice conditions through time. The Arctic Ocean responds disproportionately strongly to global [...] archives are, however, lacking from large parts of the central Arctic Ocean, in particular from the so-called Last Ice Area (LIA) off northern and northeastern Greenland and along the Lomonosov and

Forschung, BMBF ), intend to assess the influence of sea-ice and ocean dynamics in the Laptev Sea and to investigate the ecological consequences of environmental changes in key regions of the transpolar drift, and to study effects of ocean acidification on marine organisms and their habitats. Furthermore, the Deep-Sea Research Group leads the Helmholtz infrastructure project FRAM (Frontiers in Arctic marine Monitoring) and is also partner of the Helmholtz alliance ROBEX (Robotic Exploration of Extreme Environments) of the Helmholtz

Dr. Stijn De Schepper What are the global impacts of an ice-free Arctic? How will the Arctic develop with increasing climate warming? What does an ice-free Arctic mean for our environment and our society [...] as the surface uplift of the Andes, but also by changes in the oceanic circulation of the adjacent Pacific Ocean. The timing, forcings, and feedbacks of land-ocean coupling and their impact on the past [...] regional monsoons. Contact: Jian Shi Changes of water isotopes in Arctic Sea ice, Ocean and atMosphere (CiASOM) The MOSAiC drift experiment offered the unique possibility to tackle the main hydrological

A. (2025) Assessment of transparent exopolymer particles in the Arctic Ocean implemented into the coupled ocean-sea ice-biogeochemistry model FESOM2.1-REcOM. Geoscientific Model Development (GMD) https [...] A survey of carbon monoxide and non-methane hydrocarbons in the Arctic Ocean during summer 2010: assessment of the role of phytoplankton, Biogeosciences Discuss., 9, 4727-4792, doi:10.5194/bgd-9-4727- [...] Heft 6, 81. Cherkasheva, A., Bracher, A., Melsheimer, C. (2010). Arctic marine primary production with respect to changes in sea ice cover., Proceedings “Oceans from Space” Venice (Italy), 26-30 April

the energy and momentum exchanges across the atmosphere-ice-ocean interfaces and actively contributes to the sea ice mass balance. The Antarctic sea ice is characterized by a year-round snow cover [...] and oceanic processes on the evolution of Antarctic sea ice and its role within the climate system From pole to pole Cross-pole process [...] signatures of snow, sea ice, and surface seawater in the central Arctic Ocean during the MOSAiC expedition, Elementa: Science of the Anthropocene, 12, doi.org/10.1525/elementa.2023.00078 , 2024.

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

Institut) What is submarine permafrost? Subsea permafrost in the Arctic is generally relict terrestrial permafrost, inundated after the last glaciation and now degrading under the overlying shelf sea. [...] the distribution of submarine permafrost for most of the shallow Arctic Shelf, over 80% of which lies offshore of Eastern Siberia. Degradation rates of the ice-bearing permafrost following inundation have [...] Projects EU Nunataryuk BMBF MOSES BMBF / NERC CACOON FLO CHAR Arctic Coastal Dynamics (ACD)

permafrost erosion, organic carbon and nutrient release to the arctic nearshore zone (COPER) Permafrost Erosion Arctic permafrost coasts account for 34% of the coasts of the Earth and are extremely [...] are instantly washed away by incoming waves. With warming in the Arctic expected to be roughly two to four times as high as the global mean, sea ice extent is expected to decline dramatically and induce [...] studies are therefore necessary to understand the response of Arctic coasts to environmental forcing and to better quantify the amount of sediment and organic matter released by coastal erosion. The