Floats are free drifting underwater buoys Fig. 1: The research vessel "Polarstern" in antarctic waters. The antenna of a deployed float is visible in the foreground. (Photo: Alfred-Wegener-Institut) Floats

CONTRASTS (PS149) Contrasts of sea ice regimes in the Arctic Ocean during melt season The Polarstern expedition CONTRASTS (2 July to 1 September 2025, also named PS149, ArcWatch-3) investigates the causes [...] The aircraft campaign IceBird summer 2025 complements with regional surveys. Sea ice station with Polarstern (example from MOSAiC 2020). The vessel is moored to the ice floe. Measurements are performed and [...] autonomous devices. (Graphic: Alfred-Wegener-Institut) On-route measurements and regional surveys With Polarstern, the helicopters and also the aircrafts on the IceBird summer expedition (from Station Nord), we

kehren wir nach Hause zurück. © Romy Ilk Auktionsabend auf der Polarstern 23. October 2025 Am Abend des 17. September verwandelte sich die Polarstern in ein Auktionshaus der besonderen Art. Nach wochenlanger [...] waren die handgefertigten Stücke aus der Werkstatt der Crew: Messingplatten mit der Silhouette der Polarstern, ein Stift aus Messingrohren und einzigartige Kunstwerke aus Ersatzteilen des Maschinenraums. In

understanding of the polar sea ice zones. Here at AWI, we are mostly using our own ice breaker RV Polarstern, but we are also involved in expeditions by partner institutes with their vessels. During these

Alfred-Wegener-Institut) Alexandra Kraberg Atmosphere Antarctic (Neumayer-Station III) Arctic (AWIPEV) Polarstern (Ice breaker) Automatic Weather Stations Geophysics Seismics (Neumayer-Station III) Magnetics

and are operated from the Neumayer - and AWIPEV Stations, as well as from the research icebreaker Polarstern . MOSAiC expedition The Multidisciplinary drifting Observatory for the Study of Arctic Climate [...] (MOSAiC) was a major year-long campaign in the Central Arctic Sea ice, using the research icebreaker Polarstern . MOSAiC was a large international effort spearheaded by the Atmospheric Physics Section at AWI [...] 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

(0)471 4831-1566 Project Polarstern II In May 2020 the AWI was appointed to conduct a new process for the acquisition of a new ice-breaking research and supply vessel Polarstern II by the board of trustees [...] of primary importance for AWI are bundled in the staff unit Project Polarstern II. Contact: Detlef Wilde Stabsstelle Projekt Polarstern II Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

Seafloor Tools for Integrative Management of Marine Protected Areas Seafloor of the Weddell Sea. RV Polarstern expedition PS118 (2019). (Photo: Autun Purser (AWI) (Photo: Alfred-Wegener-Institut) BEnToolsMaPs:

meteorological and aerosol/trace gas observatories in Antarctica and the meteorological observatory on Polarstern and frequently uses the Polar aircraft. We train machine-learning models to improve our understanding

secure the oceans as a sustainable resource. *** New training expedition Nov-Dec 2025 on board RV Polarstern *** Venue and Background The Nippon Foundation-POGO Centre of Excellence (NF-POGO CofE) provides