Given the important role of the Antarctic food web in the global ocean, our project has a large societal relevance enabling us to predict the consequences of global warming for the Southern Polar Ocean [...] the effects of climate changes on the ecosystem of the Southern Ocean and support a more adaptive risk assessment of the krill fishery in the Southern Ocean. Participants Prof. Dr. Bettina Meyer (AWI/ [...] cycling changes in light conditions (photoperiodism). As the Arctic Ocean is warming, zooplankton are undergoing habitat range extensions polewards. This will result in exposure to new and more extreme

in various research areas: Climate and Geoscience (atmosphere, ocean, ice and land), Coastal and Shelf Sea Systems, Terrestrial Arctic Ecosystems and Permafrost, Marine and Polar Life, Aquaculture,

with native organisms. Effects of global change on the ecology of Arctic coasts Currently, global warming especially causes strong effects on Arctic ecosystems. We study the consequences of increasing water temperatures on species interactions in Arctic benthic coastal communities. From these investigations we predict future scenarios for a warmer marine Arctic ecosystem and its [...] from the Interreg North-West Europe Programme. Exciting results Arctic burrowing Effects of Arctic lugworms Find out more Marine heatwaves Do you remember? Find out more Team PIs: Dr. Christian Buschbaum

long-term measurements in Antarctica, ( Neumayer_III ), in the Arctic (AWIPEV ) and on the oceans ( Polarstern ) automatic weather stations (AWS) are in use. The numbers of the AWS-systems and their

Marine Geology curates and archives sediment cores from both polar oceans which were taken by RV Polarstern since 1983. The collection comprises more than 4000 cores from gravity, piston, kastenlot and [...] the AWI repository. Lacustrine sediments cored from lakes in the Arctic and Antarctic are archived by the section Polar Terrestrial Environmental Systems at AWI Potsdam. Cores are stored at 4°C and an

Helgoland-UWO - 54° 11.700'N / 7° 52.600'E – Fig. 1) and in the Arctic Ocean in Spitzbergen ( Svalbard-UWO - 78° 55.200 / 11° 54.00 – (WGS84) - Fig. 2). The systems were developed in close cooperation

? To FAQ element Can permafrost only be found on land? Since the ocean floor in the Arctic is insulated by water and sea ice, one might assume there was no permafrost there. But guess again: at the bottom [...] erosion has worsened in the Arctic over the past few decades – due to the reduced sea-ice cover on the Arctic Ocean in summer, to higher water and air temperatures, [...] ? The permafrost regions of the Arctic are hardly an uninhabited no man’s land: in 2017, an estimated 2.3 million people lived there. More than half of all Arctic communities

of variables that describe the state of the atmosphere, land, ocean and the cryosphere. Sea ice is listed as one of the 13 Essential Climate Variables and the aim of the sea ice CCI project group is [...] ice concentration sea ice thickness sea ice drift that include Arctic and Antarctic sea ice and the respective uncertainties. The data sets both parameters will consist of a merged multi-mission data [...] ERS-1, ERS-2, EnviSat and CryoSat-2 radar altimeter missions of Arctic and Antarctic sea ice. The production of a time-series of Antarctic sea-ice thickness is based on a comparative study between radar

Long-term Observation of Surface Radiation in the Arctic (AWIPEV Research Base in Ny-Ålesund, Spitsbergen) Pyranometer in Ny-Ålesund. (Photo: Alfred-Wegener-Institut) Ny-Ålesund is situated 78.9° N north of the arctic circle. During the polar night from 24. october to 18. february, sun doesn't appear, while there is no sun set during the polar day [...] thermal conditions and the circulation of the atmosphere and the ocean, shaping the main characteristics of the Earth's climate. The radiation budget components at the surface are measured in Ny-Ålesund

Earth System Model. For example changes in oceanic gateways such as the Pacific-Atlantic connection and the Atlantic-Indian Ocean gateway via the Mediterranean are thought to represent [...] establishment of a modern-like three-layer 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 Pliocene Temperature Gradients , Paleoceanography and Paleoclimatology, 37 (2) . doi: 10.1029/2020PA003953