sea ice, thawing of permafrost is mostly taking place in the hidden depths of the ground. By causing profound ecological upheaval and destabilizing infrastructure, thawing permafrost has a direct impact [...] Landscapes is indicated by altering polygonal structures and permafrost thaw. Polygons in Northwest Canada indicating the presence and state of permafrost City of Aklavik in the Mackenzie Delta, September 2022 [...] Education and Research (BMBF) is gathering reliable and up-to-date data on the state and rate of permafrost thaw to provide better insights on landscape disturbances and the impact on people living in the

Yedoma Permafrost Landscapes as Past Archives, Present and Future Change Areas The Research Topic „Yedoma permafrost landscapes as past archives, present and future change areas” was published in Frontiers [...] this Yedoma Research Topic represent a broad view on current know-ledge in permafrost research with respect to Yedoma permafrost landscapes. Since about 150 years research was undertaken to highlight the [...] Frontiers in Earth Science in July 2022. Ice-rich permafrost deposits of late Pleistocene age (Yedoma Ice Complex) covered several million km² of the Arctic main land between the Taymyr Peninsula and the Yukon

and property of permafrost and can reflect as well as analyze them. Students will be able to describe the landscape development of permafrost regions and develop scenarios of how permafrost has changed in [...] understand how permafrost regions change in a rapdily warming Arctic and what the local to global feedbacks are. Learn about Arctic Climate Change, Cryosphere, and Permafrost; Permafrost landscapes, di [...] into the formation, structure and change of permafrost landscapes. Basic knowledge of the material and substance turnover during thawing and freezing of permafrost soils is provided. The relationship between

and Tiedemann, R. (2018): Deglacial mobilization of pre-aged terrestrial carbon from degrading permafrost , Nature Communications, 9 (1), p. 3666, doi: 10.1038/s41467-018-06080-w . Werner, M. , Jouzel [...] ions, 6 (6309), pp. 1-8, doi: 10.1038/ncomms7309 . Köhler, P. , Knorr, G. and Bard, E. (2014): Permafrost thawing as a possible source of abrupt carbon release at the onset of the Bølling/Allerød , Nature [...] C. Contoux, M. Chandler, N Tan, Q Zhang, S Hunter, Y Kamae 2023: Highly restricted near-surface permafrost extent during the mid-Pliocene warm period. Proceedings of the National Academy of Sciences, 120

Permafrost Modelling Profile Why do we need Permafrost Models? Permafrost models are important tools to investigate the role and the sensitivity of frozen ground under very complex environmental and climatic [...] Since permafrost is usually not visible at the earth’s surface and only few measurement sites exist, models are also important to investigate the current state of permafrost. Furthermore, permafrost models [...] the elements that we are able to simulate with our permafrost-land surface model. (Graphic: Alfred-Wegener-Institut) What are Permafrost Models? Permafrost models provide information on ground temperatures

effects and causing the permafrost to thaw in step with climate change. As such, taking decisive action today is all the more important if our goal is to preserve as much permafrost as possible. The study [...] Permafrost soils store large quantities of organic carbon and are often portrayed as a critical tipping element in the Earth system, which, once global warming has reached a certain level, suddenly and

inducing more permafrost thaw and carbon release. To assess the concern of a permafrost-climate feedback and to develop a better understanding of future permafrost-carbon dynamics, the Permafrost Biogeochemistry [...] drastic changes in Arctic permafrost landscapes, such as active layer deepening, thermal erosion and development of rapid thaw features. Organic matter stored frozen in permafrost deposits for thousands of [...] Characterizing the past, present and future changes of permafrost organic matter under warming climate and changing land use. Mission Statement: The Permafrost Biogeochemistry Working Group focuses its efforts

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

Award 2024 from the International Permafrost Association (IPA) to honor his outstanding lifelong commitment and accomplishments in permafrost research and for the permafrost research community.

Arctic climate and ocean dynamics - Earth system modelling - Terrestrial Arctic ecosystems and permafrost Biosciences: - Marine, coastal and shelf sea systems - Arctic ocean ecology and impacts - Aquaculture