sediments, documenting a former high stand of Lake Heihai. The fossil lake marls are affected by permafrost and disrupted by segregation ice. In the background, the glaciated peaks of the Kunlun Mountain

Permafrost
Beavers are highly effective ecosystem engineers: if a given landscape isn’t quite to their liking, they simply rearrange the terrain. And that’s what they’ve been doing for millennia in [...] to their findings, the animals could change entire ecosystems and contribute to the thawing of permafrost soils, as they report in the journal Global Change Biology.

Nature Communications Study
The loss of arctic permafrost deposits by coastal erosion could amplify climate warming via the greenhouse effect. A study using sediment samples from the Sea of Okhotsk [...] Okhotsk on the eastern coast of Russia led by AWI researchers revealed that the loss of Arctic permafrost at the end of the last glacial period led to repeated sudden increases in the carbon dioxide concentration

project KoPf - Carbon in permafrost Moderator T. Eckhardt 09:30-09:40 Eva-Maria Pfeiffer The KoPf project - Carbon in permafrost regions 09:40-10:00 Victor Brovkin Permafrost carbon dynamics in deglaciation [...] carbon turnover in eroding permafrost deposits of Kurungnakh Island, northeast Siberia 11.00-11.20 Evgeny Abakumov Molecular composition of soil organic matter of selected permafrost affected soils of the Russian [...] Sentinel-2 data for Arctic permafrost regions Josefine Walz Soil organic matter decomposition in Siberian tundra soils Sizhong Yang Microbial response to long-term permafrost thaw Janet Rethemeyer Tracing

apparent scars in the world’s permafrost regions. As the new global comparative study conducted by the international permafrost network GTN-P shows, in all regions with permafrost soils the temperature of the

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

Spaceborne platforms Kartierung und Fernerkundung Permafrost in einem sich erwärmenden Klima Deadhorse, Prudhoe Bay Churchill, Manitoba Lena Delta, Sibirien Permafrost in Landoberflächen-Modellen Modellierung Photo: [...] of permafrost temperatures in a tundra lowland landscape. Remote Sensing of Environment 135, 12–24. Westermann et al., 2016: Simulating the thermal regime and thaw processes of ice-rich permafrost ground [...] Churchill, einem Zentrum für arktischen Tourismus, leben um die 900 Einwohner. Die Stadt ist auf Permafrost gebaut. Mit unseren Arbeiten wollen wir dazu beitragen, geeignete Anpassungsstrategien für die

2016]. Methodology The study area close to Prudhoe Bay, Alaska lies within the zone of continuous permafrost and is char- acterized by high ground ice contents. The landscape displays vast natural and hu [...] Westermann, J. Boike, G. Kirillin, G. Grosse, S. Peng & G. Krinner [2016]: Rapid de- gradation of permafrost underneath waterbodies in tundra landscapes – Toward a representation of thermokarst in land surface

fluxes; permafrost modelling; CryoGrid3 Motivation State-of-the-art land surface models used for simulating permafrost dynamics generally focus on capturing gradual thaw only (i.e. describing permafrost thaw [...] lakes in permafrost environments, we discuss the importance of lake dynamics for affecting tundra landscape thermal regimes and future permafrost degradation. 5TH EUROPEAN CONFERENCE ON PERMAFROST Figure [...] n of permafrost soils. Using the process-based model CryoGrid-3 coupled to a model description of lake dynamics (FLake), we explore how the thermal and hydrological state of different permafrost landscapes

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