support the development of strategies for adaptation and mitigation. Topic 2: Oceans and Cryosphere in Climate How do oceans and the cryosphere drive climate change, and how can we better predict future [...] profound changes, with significant impacts on humanity. Central to these changes are the polar regions, oceans, and coastal and shelf seas, which play crucial roles in regulating the Earth's climate and supporting [...] ty and have a critical influence on both regional and global climate by affecting sea-ice cover, ocean circulation, atmospheric conditions and finally coastal areas. The Alfred Wegener Institute (AWI)

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. Participants Prof. Dr. Bettina [...] in a warming Southern Ocean (PEKRIS II) Project description Antarctic krill ( Euphausia superba ) is a key structural element for the functional biodiversity of the Southern Ocean ecosystem and an important [...] 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/ICBM) (Principal

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, Bionics

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 [...] in financial support 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 [...] benthic coastal communities. From these investigations we predict future scenarios for a warmer marine Arctic ecosystem and its species communites. Evolutionary Ecology Species invasions as a tool to study rapid

(AWS) In addition to the 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

Polarstern Core Repository The section 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 [...] Roberts Project are also maintained by 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

North Sea North off Helgoland ( 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

sea-ice cover on the Arctic Ocean in summer, to higher water and air temperatures, and to rising sea levels. Less sea ice means e.g. that winds produce larger waves, which batter Arctic coasts. On average [...] further thawing be prevented? 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 [...] latitudes of the Arctic and Antarctic, a minor rise is enough to set off thawing. To FAQ element Why are permafrost coasts increasingly collapsing? Coastal erosion has worsened in the Arctic over the past

production of data set time series 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 [...] group is to produce datasets of sea 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 [...] thickness time series from data of the 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

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 [...] fundamental role in determining the 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