Samoylov, Lena Delta, Sibiria On Samoylov Island in north-west Siberia, we operated three automatic stations (Samoylov Ground and Climate Station, Polygon Sea Station, open eddy covariance system) until 2021 [...] Trail Valley Creek, Mackenzie Delta, Canada Trail Valley Creek is located around 50 km North of Inuvik in the North-Western Territories in Canada. It is the testsite for the research project PermaSAR and [...] currently underway in test areas near Ny Alesund on Spitsbergen (Norway) and in Trail Valley Creek (north of Inuvik, Canada). In the past, projects have also been carried out on Samoylov Island in the Siberian

constant distance from the surface (e.g. underside of sea ice) or bottom. AWI has developed a “depressor” that allows operation in medium-severity sea ice conditions. It can also be deflected horizontally [...] with light to moderate sea ice cover. It was used for the first time during the Polarstern PS131 expedition and allowed the collection of valuable data in the marginal ice zone north of Svalbard. Further

research. Historical and reanalysis data help us to explore links between atmospheric circulation and sea surface temperature patterns that shape a substantial portion of nature variability like the El Nino [...] et al. ‘Revisiting climate impacts of an AMOC slowdown: Dependence on freshwater locations in the North Atlantic’, Science Advances , 10(47) (2024). doi:10.1126/sciadv.adr3243. Wirtz, K.W., Antunes, N. [...] 1038/s41467-024-54474-w. Hörhold, M., Münch, T., Weißbach, S. et al. Modern temperatures in central–north Greenland warmest in past millennium. Nature 613 , 503–507 (2023). doi: 10.1038/s41586-022-05517-z

summer insolation forces meltwater discharge from the ice sheets into the polar seas which subsequently enhances formation of sea ice during the winter. In the second case, growth of continental ice enhances [...] Heinrich events and their signature in the North Atlantic. Dear Hartmut, we have largely benefited from your unexpected finding of ice rafted debris in the North Atlantic Ocean. It inspired many researchers [...] our section. Go to: Home Research focus Tools Projects Publications Teaching & Outreach Team Deep-sea sediment cores recovered from the Northeast Atlantic Ocean were examined in order to elucidate the

interglacial period when polar surface temperature and global sea level were higher than today. This project aims to quantify processes that lead to sea level rise during climate warming. This requires integrating [...] extremes as well as sea level change for the benefit of society. We are involded in the subtopics: Subtopic 2.1 Warming climates Subtopic 2.2 Variability and extremes Subtopic 2.3 Sea level change Subtopic [...] l Oscillation (AMO) significantly influences global climate patterns through its impact on North Atlantic Sea surface temperatures, yet the mechanisms driving its representation in climate models, particularly

research fleet for coast research Find out more News News, events and activities Find out more AWI North Sea Office Communication of scientific knowledge Find out more Guest Research & Student Courses Research [...] laboratory Find out more Long-term Observations (LTO) Analysis of long-term ecological changes in the North Sea Find out more [...] Polar and Marine Research. Researchers at the BAH investigate the ecology of our coastal and shelf-sea systems. With the time series "Helgoland Roads", researchers at the AWI´s Helgoland facilities are

in the North Sea Find out more Long-term Observation Long-term observation since 1962 at Helgoland Roads Find out more Wadden Sea Station Sylt AWI Sylt: Research opportunities in the field, at sea and in [...] them available to the international scientific community. The Marine Station Helgoland and the Wadden Sea Station Sylt are a hub for national and transnational access for visiting scientists in the German [...] Research and Education Research as a guest and run courses at the Marine Station Helgoland or the Wadden Sea Station Sylt Find out more Research Vessels and Scientific Diving Information on Research Vessels and

five million people who live atop the permafrost. Entire sections of coastline are washed away by the sea, while elsewhere the ground collapses, which can mean massive damage to buildings and other types of [...] there do to prepare? After all, their future is on the line. But the changes underway in the High North could also spell danger for other regions around the world – because the thawing soils are releasing

upper reaches; with every high tide, additional material is washed in from the direction of the North Sea. In extreme cases, this can cause the height of the riverbed to rise by several metres in just a

temperatures for multiple years along the Greenwich meridian from North (left) to South (right). Vertical extent from the sea surface (top) to the sea floor (white). Fig. 8: Ocean temperatures near the ocean bottom [...] dense waters are formed by cooling and salinification (through formation of sea-ice). The dense water formed in the Weddell Sea makes a major contribution to the Antarctic Bottom Water (AABW), which fills [...] Total CO2 (NCT) and Oxygen within the Weddell Sea at the Prime Meridian. Displayed are linear trends in the Antarctic Surface Water (top) and Weddell Sea Bottom Water (WSBW, bottom). Statistically significa