Coastal permafrost erosion, organic carbon and nutrient release to the arctic nearshore zone (COPER) Permafrost Erosion Arctic permafrost coasts, which account for 34% of the coasts of the Earth, are extremely [...] change, because the frozen bluffs, upon contact with seawater, lose the cohesion provided by the permafrost matrix and are instantly washed away by incoming waves. With warming in the Arctic expected to [...] e the spatial variability of particulate and dissolved organic carbon and nutrient contents in permafrost sediments and ground ice as well their sediment characteristics through cross-shore sampling transects

AWI EXPERT Ph ot o: Ja n Pa ul s / A lf re d W eg en er In st it ut e Hugues Lantuit is a permafrost researcher at the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI) and [...] and the AWI research group Arctic Coastal Erosion, which he leads, mainly study the erosion of permafrost coasts and its impact on the environment as well as on local coastal communities. The team regularly [...] Hugues Lantuit is the co-founder of the Association of Polar Early Career Scientists (APECS) and the Permafrost Young Researchers Network (PYRN). Both organizations are now over ten years old and bring together

for his doctoral thesis, which represents a valuable contribution toward refining simulations of permafrost development: in it, he demonstrates the importance of small-scale landscape characteristics, since [...] a result of thawing. In the future, his findings could help provide a more realistic picture of permafrost thawing.

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

Permafrost
The frozen permafrost in the Arctic is thawing on an alarming scale. By analysing an annual record of satellite images, researchers at the Alfred Wegener Institute have now confirmed these

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.

Expedition Sobo-Sise and Peninsula Bykovsky 2014 description of a permafrost core field camp on Sobo-Sise inspection of a possible sampling site romantic midnight atmosphere on the shore of the river Lena [...] team on Bykovsky drilling of a hole for temperature measurement Pingo on Bykovsky drilling in permafrost on Bykovsky ice sample Team Ergebnisse Aktuelles Fernerkundung Kohlenstoff Expeditionen PETA-CARB

inundation of coastal permafrost areas and their role in the permafrost carbon climate feedback.

Methane Emissions from Arctic Wetlands (AirMeth) Fig.6: Polar5 flying at low lever over Arctic permafrost. (Photo: Alfred-Wegener-Institut) The atmospheric concentration of methane, a potent greenhouse [...] pattern is shown in Fig. 3. Starting from Barrow, long low level flight legs are flown over the permafrost wetland with ascents and descents interspersed for vertical soundings of the boundary layer structure [...] east to west during which the methane concentration accummulates in the boundary layer. Fig.1: Permafrost wetland of the Arctic Coastal Plain near Barrow (Alaska) (Photo: Alfred-Wegener-Institut) Fig.2:

Methane Emissions from Arctic Wetlands (AirMeth) Fig.6: Polar5 flying at low lever over Arctic permafrost. (Photo: Alfred-Wegener-Institut) The atmospheric concentration of methane, a potent greenhouse [...] pattern is shown in Fig.3. Starting from Barrow, long low level flight legs are flown over the permafrost wetland with ascents and descents interspersed for vertical soundings of the boundary layer structure [...] east to west during which the methane concentration accummulates in the boundary layer. Fig.1: Permafrost wetland of the Arctic Coastal Plain near Barrow (Alaska) (Photo: Alfred-Wegener-Institut) Fig.2: