(atmosphere, ocean, ice and land), Coastal and Shelf Sea Systems, Terrestrial Arctic Ecosystems and Permafrost, Marine and Polar Life, Aquaculture, Bionics. The projects are designed to support AWIs contribution

Press release

three languages (Photo: Alfred-Wegener-Institut) Siberian permafrost ecosystems in transition - over 25 years of joint research Siberian permafrost and the ecosystems there are of global importance due to [...] Institute Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven and Potsdam Melnikov Permafrost Institute, Siberian Branch, Russian Academy of Science (MPI SB RAS), Yakutsk German Centre for [...] with the climate. For more than 25 years we have been researching the interrelationships between permafrost, biodiversity and climate in close and friendly cooperation. With joint Arctic expeditions, jointly

Contact Directorate's Office Dr Corinna Kanzog Helmholtz Junior Research Groups Observation of permafrost on Herschel Island (Photo: Boris Radosavljevic) With the Helmholtz Junior Research Groups, the

Karen Wiltshire’s research focuses on e.g. the ecosystems of the North Sea and Wadden Sea, and the permafrost coasts of Siberia. Furthermore, she coordinates Helgoland & Sylt Roads, one of Europe’s most important

ground surface conditions is crucial for monitoring the thermal state of permafrost and dynamics in active layer thickness. Permafrost degradation affects ecosystems, communities and industrial sites in large [...] the evolution of permafrost under these conditions is of great importance. Due to an often-prevailing harsh climate in these vast areas, observational data sets are sparse. Permafrost itself is a sub-surface [...] which seasonal snow cover has on the ground surface, strongly affects the permafrost’s thermal regime and active 1Permafrost is defined as any material beneath the ground surface that remains frozen for

ten times that of the equator. Thawing permafrost Two-thirds of Arctic coasts are not rock, but rather permanently frozen soft soil – better known as “permafrost”. Approximately half of the Earth´s carbon [...] carbon are stored underground, and this is mainly contained in the permafrost soils of the northern hemisphere. When permafrost thaws, also as a result of climate change, car- bon dioxide and methane are [...] for example submarine permafrost. Rising wa- ter temperatures could also cause this ice mass to thaw. In the western Laptev Sea in Siberia, for instance, the submarine permafrost currently has a temperature

(Photo: Julia Boike) Observational data density in the permafrost region is low. At the Bayelva site close to Ny-Ålesund, Svalbard, the mean permafrost temperature is −2.8 °C, with a zero-amplitude depth [...] layer, temperature down to 9 m in the permafrost. Since the data provide observations of temporally variable parameters that mitigate energy fluxes between permafrost and atmosphere, they are suitable for [...] for use in integrating, calibrating and testing permafrost as a component in earth system models. Science: Prof. Dr. Julia Boike Technique: Niko Bornemann Data and Publications: LTO-Trendviewer LTO-Data

(Photo: Julia Boike) Observational data density in the permafrost region is low. At the Samoylov site in the Lena River Delta, Siberia, the mean permafrost temperature was −8 °C, with a zero-amplitude depth [...] layer, temperature down to 26 m in the permafrost. Since the data provide observations of temporally variable parameters that mitigate energy fluxes between permafrost and atmosphere, they are suitable for [...] for use in integrating, calibrating and testing permafrost as a component in earth system models. Science: Prof. Dr. Julia Boike Technique: Niko Bornemann Data and Publications: LTO-Trendviewer LTO-Data

Upscaling of permafrost region field measurements with remote sensing Generating permafrost remote sensing datasets suitable for model parametrization and validation Making geospatial permafrost datasets available [...] and other permafrost-region disturbance dynamics Mapping periglacial geomorphology, land surface changes, and surface deformation Advancing machine learning and deep learning for permafrost region remote [...] Laboratories Sedimentology Aim: Study of transport and accumulation processes of permafrost-related deposits Classification of sediment sequences in general Parameters: Sediment structure description