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

, 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 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

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

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.

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

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)

of our planet was not only dictated by the coming and going of oceans and mountains, or the wandering of continents; it was also constantly shaped by natural climate change. From the past we can learn [...] with tundra, like what we now see in eastern Siberia. Today’s Arctic, with ice-covered Greenland, Siberian permafrost and sea ice at the North Pole, is a holdover of that glacial world. But for how [...] Diekmann Find out more > Dialogue & Lectures Lectures | 15.07.2018 Arctic Environments in Change Ecologic Arctic Summer College Policy advice

fast things changed, what forces drove them, how ice sheets and oceans responded – we would gain something invaluable: a longer perspective on what is possible. But how do we read a past that left no [...] – a measure of ocean acidity that is closely linked to atmospheric CO₂ levels. These are just two of the signals we work with, each opening a different [...] water masses from the Atlantic are pushing further north into the Arctic Ocean through the Fram Strait. This is a recent and ongoing phenomenon, and understanding its pace and extent requires archives with