operations at temperatures down to -50 degrees Celsius, and can even overwinter in the ice of the polar seas. Interesting facts Home port Bremerhaven Length 118 metres Width 25 metres Max. draught 11.20 metres [...] nautical miles / 80 days Max. speed 16 knots Ship's crew 44 Researchers and technicians 53 Days at sea per year (on average) approx. 305 Shipyard Nobiskrug, Rendsburg und Howaldtswerke - Deutsche Werft [...] 30 December 2025-02 January 2026 Polarstern on tour News How a heat wave in 2003 has changed the North Atlantic until today Extreme events change the ecology of oceans abruptly: For example, a marine heat

2023 (3rd place). The image is acquired with the MACS airborne system over Nioghalvfjedersbræ in North-East Greenland showing a supraglacial lake that has drained. The dark colors show sediments like dust [...] Richardson Medal for its academic and leadership activities in the design and production of future sea-level projections. The AWI ISMIP6 members are Thomas Kleiner and Angelika Humbert, who contributed

represent temporary perturbations, long-term trends, or a new equilibrium. The decrease of sea-ice extent and sea-ice thickness in the past decade is statistically significant. These alterations will directly [...] detection of expected changes in abiotic and biotic parameters in a transition zone between the northern North Atlantic and the central Arctic Ocean, the Alfred Wegener Institute established the LTER (Long-Term [...] Wlodarska-Kowalczuk, M., Klages, M. (2005): HAUSGARTEN: multidisciplinary investigations at a deep-sea, long-term observatory in the Arctic Ocean. Oceanography 18(3): 46-61, doi.org/10.5670/oceanog.2005

focus of the Alfred Wegener Institute in Bremerhaven is polar research and the exploration of the sea. Scientists of different disciplines work together multidisciplinary to investigate the climate, biosystems [...] (“Leherheide Ost”), 507 (“Spaden”), 508 (‘Leherheide’), 509 (“Imsum”) and the Moonliner ML heading north. Further information can be found here: AWI Guest House Bremerhaven Contact General questions via

mesocosm experiments with North Sea plankton to understand how global change impacts planktonic food webs on different organisational levels (individual, population, and community) North Sea plankton Asterionellopsis [...] interactions, and are characterized by strong spatio-temporal dynamics. The characterization of Shelf Sea food webs is our central aim. By using field and experimental approaches, we address the effects of

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 [...] ocean models 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

Nordsee 2025 Alexander Haumann and Rowan Brown are leading the Heincke student expedition to the North Sea with students from Munich, Düsseldorf, and Bremen. There is a new blog entry about this. Find out [...] Advanced seminar: Polar Regions in Transition (winter semester) Short field trip: Heincke Expedition North Sea (summer semester) Publications Olivier, L. , Haumann, F. A. (2025). Southern Ocean freshening stalls [...] budget. This important role arises from the vast exchange of water between the deep ocean and the sea surface that is unprecedented in the global ocean elsewhere. Over past decades, the Southern Ocean

composition and trophic interactions of the subpolar North Atlantic that these impacts last until today. Researchers led by the Thünen Institute of Sea Fisheries in Bremerhaven just described this. The study

sheet to warming and its potential to contribute to future sea level rise. Find out more Online news How a 2003 heat wave still changes the North Atlantic Extreme events change the ecology of oceans abruptly: [...] wave in 2003 had such strong effects on species composition and trophic interactions of the subpolar North Atlantic that these impacts last until today. Find out more Blog post Farewell to Antarctica The 45th [...] Laeisz shipping company have supported AWI research in the Arctic and Antarctic, both on land and at sea. Laeisz has operated the Polarstern since New Year's Eve 1995. On 15 January, the AWI honoured this

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