Permafrost
According to estimates, Alaska's thawing permafrost soils cost the USA several 100 million dollars every decade – primarily because airports, roads, pipelines and settlements require relocation

special focus on the interaction of permafrost landscapes with recent climate warming and its consequences. Numerous long-term measuring stations for monitoring permafrost conditions, micrometeorology, the [...] largest nature reserves. This unique region is crucial for understanding the processes that influence permafrost in the Siberian Arctic. The station, operated by the Trofimuk Institute of Oil and Gas Geology [...] Marine Research, the Arctic and Antarctic Research Institute in St. Petersburg and the Melnikov Permafrost Institute, Siberian Department, Russian Academy of Sciences in Yakutsk. The aim of the fieldwork

Abromeit, Expedition Reporter for GEO Magazine, out at the Bayelva Permafrost Long-Term Observatory to collect data from the permafrost measuring instrument. Charlotte Havermans researcher from Alfred- [...] AWIPEV was formerly the Koldewey Station. Julia Boike, permafrost researcher, and Bill Cable, engineer, check instruments at the Bayelva long-term permafrost observatory. Bettina Haupt, station leader, launches [...] radiation and increasing ocean acidification. The geosciences, on the other hand, focus on changes in permafrost soils and glacier systems. Current Data AWI scientists carry out regular measurements. These are

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:

order to identify and quantify potential risks for ecosystems and infrastructure emerging from permafrost degradation. Many landforms throughout the Arctic such as thermokarst lakes, thermoerosion gullies [...] the Arctic. In remote and vast Arctic areas satellite and aerial imagery provide insights into permafrost thaw processes on a regional scale which we would not gain from measurements at the surface. Remote [...] sensing component of the project, therefore, addresses the following research questions: 1. How do permafrost erosion features respond to changes in meteorological conditions? 2. What are the factors controlling

further develop the CryoGrid permafrost model and apply it to thermokarst processes in ice-rich permafrost. He also deals with the question of the extent to which the permafrost region in the northern hemisphere [...] help provide a more realistic picture of permafrost thawing. AWI press release original press release Paper entitled "Sensitivity of ecosystem-protected permafrost under changing boreal forest structures [...] the workshop were the impacts of rapid permafrost degradation to the infrastructure and the results, potentials, objectives and plans on modelling of permafrost processes. Furthermore there were sessions

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

water and sediment samples. Correlations between permafrost distribution and sediment characteristics will help determine the role of subsea permafrost in ecosystem dynamics. Furthermore, the project will [...] this project is to determine the impact of changing land-ocean matter fluxes and coastal subsea permafrost on nearshore ecosystems and biodiversity in the Beaufort Sea. This project will build on recent [...] zone, focusing on how it is impacted by climate change. Investigate the role of recently submerged permafrost in sediment-water gas exchange. In this project, we plan to conduct two campaigns in the spring

(Graphic: Alfred-Wegener-Institut) Global warming and the thawing of permafrost not only lead to destabilization of the soil in the permafrost regions of the Arctic, but also to a tendency to increasingly delimit [...] risk assessment is therefore crucial from an economic as well as ecological point of view. The permafrost model CryoGrid, which has been further developed as part of PermaRisk, is intended to help predict