Threshold in North Atlantic-Arctic Ocean circulation controlled by the subsidence of the Greenland-Scotland Ridge , Nature Communications, 8 (15681), pp. 1-13, doi: [...] , R., Fahl, K., Gierz, P. , Niessen, F. and Lohmann, G. (2017): Arctic Ocean sea ice cover during the penultimate glacial and the last interglacial , Nature Communications, 373, doi: 10.1038/s41467-017 [...] 2016), Evidence for ice-free summers in the late Miocene central Arctic Ocean , Nature Communications, 7, pp. 1-13, doi: 10.1038/ncomms11148 . Abelmann, A., Gersonde, R. , Knorr, G. , Zhang, X. , Chapligin

and the temporal variability in two permafrost regions along the Arctic Ocean. My study areas are the Lena Delta and Bykovsky Peninsula in Siberia, and a transect from Teshekpuk Lake to Toolik in Alaska [...] (Photo: Josefine Lenz) Global warming will continue to warm the Arctic resulting in the degradation of permafrost soils. This leads to large-scale ground subsidence. Vast regions of the Arctic are covered [...] Frank Günther Keywords: thermokarst dynamics, thaw subsidence, arctic coastal erosion, photogrammetry, remote sensing

Polar bear mother and cup in the Arctic ocean Automatic Marine Mammal Mitigation by Infrared Imaging Use of loud seismic airguns and naval sonars in marine surveys is feared [...] 1563h operational Operation of FIRST-Navy infrared imager in the Arctic Ocean. (+) Successful operation of sensor for entire expedtion without any member of the IR team on board. (-) ANT 29.2 Nov 2012 - [...] in off-shore seismic and renewable energy construction settings. Arctic Ocean PS101 Sep-Oct 2016 Ship based operation of FIRST-Navy infrared imager on RV Polarstern. (+) Operational use to support

function and distribution of organic compounds in the changing polar ocean. We aim to understand the function of marine organic compounds, both, as diagnostic markers to decode biogeochemical processes and [...] we are investigating the influence of Atlanticification on the Arctic ecosystem around Spitsbergen. To this end, we are studying four fjords with varying degrees of Atlanticification influence, from [...] future biological carbon pump Subtopic 6.4 Use and misuse of the ocean: Consequences for marine ecosystems Publications of the Section Biological carbon pump Influence of seawater chemistry on community

means that they transport more ice from the land’s interior to the ocean, which in turn causes the sea level to rise. Furthermore, the surface of Greenland’s ice sheet is melting more extensively and is [...] Now (Video) | 14.09.2020 Climate Crisis: Ice breaks away from Arctic's largest remaining shelf Find out more > Dialogue & Lectures Lecture | 04.03.2022 The Complex Life of Ice Sheets TEDx Talks Talk [...] 06.03.2017 How the Greenland Ice Sheet is loosing mass forced by the ocean Summit on Climate Change Policy advice

Klieschen Taucheinsatz ArcWatch Interaction and feedbacks between ocean structure and dynamics, sea ice physics, biogeochemistry, and biodiversity of the Arctic Ocean. Organic compounds in the Arctic Ocean and the deep Atlantic Ocean are derived from marine algae and from a substantial input by the large Arctic Rivers. For us, ArcWatch [...] elucidate, if the amount of dissolved organic compounds in the Arctic Ocean changed over the last decades. We also aim at quantifying the contribution of terrestrial organic matter because it represents

have shown that garbage can be found throughout the world’s oceans. Even in the most remote parts of the ocean, like the polar regions or the bottom of the deep sea, we can find large amounts of [...] plastic debris end up? A great deal of the debris in and on the ocean ends up on beaches or the ocean floor. Especially deep-sea trenches have essentially become deposition sites for large amounts of debris. Currents transport plastic debris through the ocean, allowing it to accumulate even in remote areas like the Arctic. Unlike beach debris, the plastics in the ocean cannot be readily

and biogeochemical processes in the atmosphere, cryosphere, and ocean. Understanding these processes – especially in the rapidly changing polar regions where the changes have far-reaching implications [...] simulate. We operate cutting-edge measurement systems across the Arctic and Antarctic, using research vessels, such as the icebreaker Polarstern , observatories, aircrafts, and satellites to capture the evolving dynamics of the ocean, atmosphere, sea ice, and ice sheets. At the same time, we push the boundaries of climate modeling – one of our key strengths – by

Children ask questions" on the subject of "Climate change in the Arctic" , some PETA CARB members can be seen and heard. 2018-10-20 Based on an interview with PETA-CARB researcher Guido Grosse the newspaper [...] "WissensWerte" by rbb INFORadio about permafrost research in Arctic. 2015-11-27 On Arctic Dispatch News there is an article about our yedoma erosion study: "Speedily eroding North Slope river bluff offers window into ice age past" 2015-11-07 On Arctic Dispatch News there is another article about a North Slope tundra fire, a study Guido contributed to: "Study: Big North Slope tundra

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 life. The polar regions, in [...] on both regional and global climate by affecting sea-ice cover, ocean circulation, atmospheric conditions and finally coastal areas. The Alfred Wegener Institute (AWI) is fully committed to addressing [...] 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 climate and