the research project PermaSAR and the main focus is on landsurface subsidence or heave caused by permafrost processes such as thawing and freezing. Field campaigns are conducted in collaboration with the

20-25min): Permafrost Degradation and Infrastructure Modeling Permafrost Landscape Dynamics Housing and infrastructure related problems in Greenland Modeling Gravel and Ice Roads on Permafrost Lunch: 12:00 [...] Tundra Travel Detecting Permafrost Dynamics and Infrastructure from Space Permafrost Landscape Dynamics and Indigenous Land Use Modeling Biogeophysical Processes in Permafrost Environments Lunch: 12:00–12:30: [...] 12:00 – 12:30: Breakout Sessions 12:30 - 14:30: Modeling Permafrost - Infrastructure Interactions Permafrost Degradation Features Ground Ice and Hydrology Breakout Sessions Summary 14:30 – 15:00 Open Poster

Background: Methods and Preliminary Results: Simulating rapid permafrost degradation and erosion processes under a warming climate Model setup:Permafrost under a warming Climate: Current State and Further Development [...] slump dynamics. Current distribution of permafrost on the northern hemisphere. Current Land Surface Models (LSMs) used to simulate the degradation of permafrost under a warming climate only consider o [...] abundant form of thaw in many regions. Photographs showing typical features of permafrost degradation in the Arctic. Permafrost thaw is usually associated with intensive erosion and mass wasting. Schematic

warming and the Arctic K 1 2 0 -1 -2 Global permafrost distribution (NASA: Scientific Visualization Studio based on IPA map) Mu(d)ch about Permafrost Global permafrost distribution (NASA: Scientific Visualization [...] underlain by permafrost. ● Permafrost controls essential ecosystem functions such as water and nutrient cycles. ● About 1500 Pg organic carbon are stored in the upper meters of permafrost. ● The Arctic [...] River Delta State of the art of modeling permafrost CLM4.5 projection following the RCP8.5 scenario Koven et al. (2015) State of the art of modeling permafrost CLM4.5 projection following the RCP8.5 scenario

Beck, I. et al. (2015): Assessing Permafrost Degradation and Land Cover Changes (1986 - 2009) using Remote Sensing Data over Umiujaq, Sub-Arctic, Québec, Permafrost and Periglacial Processes , 26 (2) [...] pp. 129 -141. Boike, J. , et al. (2013): Baseline characteristics of climate, permafrost and land cover from a new permafrost observatory in the Lena River Delta, Siberia (1998-2011), Biogeosciences, 10 [...] al. (2012): Using ground data from the Global Terrestrial Network of Permafrost (GTN-P) for the Evaluation of the ESA DUE Permafrost remote sensing derived Products Land Surface Temperature and ASCAT Surface

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

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

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

track across the street, Claire thinks it is a toss-up for the winner. We also tried to locate our permafrost auger, which we shipped to Kotzebue in the first week already. On the other hand, this week blessed

Wednesday afternoon we visited Miriam’s old Kenai-permafrost research site. After a 45 minute drive to the interior of the peninsula, we arrived at a small permafrost peat plateau covered by black spruce and [...] protected permafrost originates from the younger Dryas and was protected by the peat layer. The peat formed, froze and expanded and therefore rose above the wetland level forming these permafrost remnants [...] remnants above the wetlands. Meanwhile, this site is heavily affected by thawing permafrost, too and undergoes rapid degradation. Corona safe group photograph with Miriam on the left side Matthias and Miriam