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

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

CCI+ Permafrost ESA CCI+ Permafrost The European Space Agency (ESA) Climate Change Initiative (CCI+) provides consistent time series for climate-research related applications. Within CCI+ Permafrost (2018-2021) [...] derived from satellite data. AWI Potsdam is responsible for the Permafrost_cci permafrost product validation. We are assembling the Permafrost_cci und REKLIM data collection of shallow ground temperature [...] Northern hemisphere Permafrost_cci permafrost probability and in situ ground temperature + environmental data collection from a wide range of measurement programs. (right) This Permafrost-cci and REKLIM data

seasonal temperature and precipitation dynamics as key driver of permafrost changes in East Siberia. To this end, caves and permafrost exposure will be studied in East Siberia along a transect from the [...] different types of relict permafrost ice, (iii) Deduce changes in seasonality, moisture dynamics, and continentality based on results from objectives 1 and 2, and corresponding permafrost response to climate [...] orientation of research projects include scientific applications of stable isotope methods in permafrost research, palaeoclimate studies, by also in the fields of limnology, hydrology, ecology and glaciology

seasonal temperature and precipitation dynamics as key driver of permafrost changes in East Siberia. To this end, caves and permafrost exposure will be studied in East Siberia along a transect from the [...] different types of relict permafrost ice, (iii) Deduce changes in seasonality, moisture dynamics, and continentality based on results from objectives 1 and 2, and corresponding permafrost response to climate [...] Marent , engineer Mikaela Weiner (CTA) Projects, Cooperations, Networking Reconstructing Siberian permafrost dynamics using stable and clumped isotopes (IsoPerm) (2021-2025) This joint project with Northumbria

nations. Find out more Ice Climate Arctic Permafrost The cold regions of our planet are home to massive areas in which the ground is permeated by frost: permafrost soil. However, climate change is steadily [...] steadily reducing the scope and scale of the permafrost – with a host of grave consequences. Find out more Sea Arctic Antarctic North Sea Marine plastic debris Even in the most remote parts of the ocean, like