Today, the research vessel Polarstern will depart on a seven-week-long voyage to the Arctic, where the onset of summer also marks the beginning of the annual sea-ice melting. Over the past 40 years, the [...] zone, the team of researchers on board will investigate how heat fluxes and water layering in the ocean, as well as the characteristics of the ice, interact and influence melting. A further focus of the

north of Svalbard, as well as ocean/glacier interactions off the coast of Greenland. Central research questions included how the ice conditions, ocean heat fluxes and ocean stratification determine sea-ice [...] The Research Vessel Polarstern was in the Arctic for the past seven weeks. There, the summertime sea-ice extent declined by ca. 40 percent over the past 40 years – making it one of the most visible impacts

the Alfred Wegener Institute’s flagship has successfully completed more than 130 expeditions to the Arctic and Antarctic and offered a temporary home for thousands of researchers from Germany and around the [...] safely traversed 1.8 million nautical miles. The ship is currently on an expedition in the Southern Ocean.

in the Arctic: the AWI’s Hausgarten observatory in the Fram Strait, where experts from various disciplines are investigating all aspects of the ecosystem, from the water’s surface to the ocean depths, [...] in order to determine the impacts of climate change on biodiversity in the Arctic. After roughly a month underway, in mid-September Polarstern will reach the Norwegian port of Tromsø, where she’ll receive [...] her final preparations for the one-year-long MOSAiC expedition, prior to leaving for the Central Arctic on 20 September.

models simulating current and future changes in the Arctic Ocean. • decipher how climate change mechanisms in the North Atlantic and the Arctic Ocean are coupled. • assess plastic pollution in sea-ice, [...] Campaigns - Antarctic Campaigns - Arctic Expeditions 2025: Transits and Campaigns - Antarctic Campaigns - Arctic Expeditions 2026: Transits and Campaigns - Antarctic Campaigns - Arctic Expeditions 2027: Transits [...] the transition zone between the northern North Atlantic and the central Arctic Ocean, and to determine the factors controlling Arctic deep-sea biodiversity. • Permanent presence at sea, from surface to depth

forward to continuing the one-year-long MOSAiC expedition and its research on the ocean, ice and atmosphere in the Arctic. Earlier this week, their predecessors from Leg 3 returned to Bremerhaven on board

away from the coast (offshore). They have a strong influence on the heat and energy exchange between ocean and atmosphere since they are a gap in the insulating ice cover. In the polynias, water is cooled [...] regions Sea Ice Drift and Deformation Drift and deformation von sea ices Permafrost Charting the Arctic Tundra Ice Shelves and Icebergs Mass loss of the antarctic ice sheet Snow Accumulation Retrieval [...] and analysis of data from different satellite sensors as a contribution to polynia research in the Arctic and Antarctic) is funded by the Federal Ministry for Economic Affairs and Energy.

stratification in the Arctic Ocean during the Miocene , arktos . doi: 10.1007/s41063-020-00079-8 Lohmann, G. , Knorr, G. , Hossain, A. and Stepanek, C. (2022): Effects of CO2 and Ocean Mixing on Miocene and [...] in the ocean model FESOM. The figure shows a land-sea configuration during the Middle Miocene (~15 million years ago) as incorporated in a complex Earth System Model. For example changes in oceanic gateways [...] between classic hypotheses for glaciations that involve e.g. tectonic changes and associated changes in ocean circulation or declining atmospheric CO 2 in combination with the Earth’s orbital configuration. Research

Purser • AWI Science Award, 2023, Dr. Cara Nissen Diverse Grants und Projekte • ERC Starting Grant OceanPeak (Hauck), www.awi.de/ueber-uns/service/presse/presse- detailansicht/default-c1f8a44c21-1 [...] ): Year-round Ecosystem Study on Svalbard: Seasonally resolving ecosystem functioning in a warming Arctic www.fona.de/de/yesss-neues- forschungsprojekt-untersucht-ganzjaehrig-erwaermung-in-der-arktis

Christian.Haas@awi.de
+49(471)4831-2285
Klußmannstraße 3d, 27570 Bremerhaven