Anthropogenic impacts on particulate organic carbon cycling in the North Sea [Translate to English:] Automatisierte in-situ Messung durch ein benthisches Absatzgestell. (Photo: Alfred-Wegener-Institut) [...] APOC is to investigate the transport and accumulation of particulate organic carbon within the North Sea and how anthropogenic activities might alter the potential for carbon sequestration in marine sediments [...] hydrodynamics, but our ability to predict sedimentation processes is limited especially in the North Sea. Additionally, anthropogenic activities, such as bottom trawling, can alter POC sedimentation, releasing

understand natural fluctuations and directed climatic changes in benthic communities in the North Sea. In the German North Sea, the animal communities of the seafloor experience substantial interannual fluctuations

and distribution of benthic communities in the North Sea Our mission is to provide an improved understanding of the benthic communities of the North Sea, setting the basis for an ecological assessment [...] observe animal communities in and on the seafloor of the German Exclusive Economic Zone of the North Sea and its protected areas. Further, we investigate how the species communities recover after the exclusion

energy cycle in the ecosystems of the polar regions and of the shelf and coastal regions of the North Sea. Central research themes are (1) reactions of individuals, populations and communities on external [...] Biological Oceanography Sustainable Marine Bioeconomy Integrative Ecophysiology Shelf Sea System Ecology Deep-Sea Ecology and Technology

overview) Sea Ice Portal Marine Data Portal The sound of Polarstern (Kopie 11) News Investigating unexplored ocean currents to the north of Greenland The scarcely explored region to the north of Greenland [...] miles / 80 days Max. speed 16 knots Operation area Everywhere including pack ice zone Crew 44 Days on sea per year on average approx. 305 Shipyard Nobiskrug, Rendsburg and Howaldtswerke - Deutsche Werft Kiel [...] expeditions undertaken by the Polarstern since the end of May 2025. In the largely untraveled waters north and northeast of Greenland, a research team led by physical oceanographer Torsten Kanzow of the Alfred

2025 Our expedition comes to an end as we dock in Bremerhaven. How can we sum up our seven weeks at sea? Maybe like this: The CTD completed 127 casts, travelling about 253 kilometres through the water column [...] crew and scientists that defined this expedition. We return home with valuable data from a region north of Greenland that has been largely unexplored until now. © Romy Ilk Auction Night on Polarstern 23 [...] evening of September 17th, Polarstern turned into an auction house like no other. After weeks of life at sea, scientists, crew, and technicians gathered in the lounge to bid not just for objects, but for memories

in the North- and Baltic Seas was a collaborative project with the German Federal Maritime and Hydrographic Agency (BSH). The project focused on concentrations of algae and oxygen in the North Sea and Baltic [...] Agency (BSH) in the North and Baltic Seas. The data assimilation system uses PDAF and the operational model HBM coupled to the ecosystem model ERGOM and focused on the assimialtion of sea surface temperature [...] be improved by data assimilation, for example by utilizing satellite observations of sea surface temperature or sea surface height. Similarly, ocean-biogeochemical models can profit from the incorporation

Schroeder, A. Ridout, L. Nerger (2023) The effects of assimilating a sub-grid-scale sea ice thickness distribution in a new Arctic sea ice data assimilation system. The Cryosphere , 17, 2509–2532, ​ doi:10.519 [...] M., Nerger, L., Mu, L., Yang, Q., Liu, C. (2019) Using sea surface temperature observations to constrain upper ocean properties in an Arctic sea ice-ocean data assimilation system. J. Geophys. Res. Oceans [...] M., Losa, S.N., Ricker, R., Nerger, L., Liang, X. (2018) Improving sea ice thickness estimates by assimilating CryoSat-2 and SMOS sea ice thickness data simultaneously. Quarterly Journal of the Royal

carried out as part of the MOSAiC expedition at 88° northern latitude and revealed that even this far north, microalgae can build up biomass through photosynthesis as early as the end of March. At this time [...] found in the Central Arctic Ocean Single individuals of Atlantic cod and squid occur much further north than previously expected. Scientists participating in the international MOSAiC expedition with research [...] Central Arctic Ocean. They have now published three overview articles on the MOSAiC atmosphere, snow and sea ice, and ocean programs in the journal Elementa, highlighting the importance of examining all components

(one engine) Range Day tours Max. speed 10 knots Operation area around Sylt and North Sea / Helgoland Crew 2 Days on Sea per year (2013) Day tours at stations plans Shipyard Fassmer GmbH & Co. KG, Germany [...] Environmentally friendly research in the Wadden Sea The 21-metre-long Mya II is the newest member of the AWI research fleet and sails for the AWI Sylt in the Wadden Sea between Sylt and Rømø as well as up to the [...] the island of Helgoland in the North Sea. "It may be our smallest research vessel, but it is highly modern and very well equipped for coastal research." Prof. Dr Karin Lochte, Director of the Alfred Wegener