arctic tundra is an unglaciated, treeless landscape characterized by the presence of continuous permafrost. The tundra is vegetated by low vegetation such as grass and sedges, herbs, little bushes, lichens [...] opportunity to receive information about the state of the tundra in large areas near real time. Permafrost in Greenland Geocoded TerraSAR-X scene of Zackenberg valley (© DLR 2013) (Photo: Alfred Wegener

/ NSIDC) (Photo: Alfred Wegener Institut) Remote sensing technology for the polar regions Permafrost Permafrost landscape in the Lena delta (© NASA / Landsat , 2000) (Photo: Alfred Wegener Institut) Charting

the working group Wolfgang Dierking Website Stefanie Linow Topics Sea ice drift and deformation Permafrost Polynias Ice shelf and icebergs Snow accumulation What is remote sensing? Typical for remote sensing [...] research? In our group we focus on the ice sheets of Antarctica and Greenland, on sea ice, and on permafrost regions. Typical questions are: Which sea ice types can be separated in radar images? How do polynyas [...] and deformation? Which sensor combinations are optimal for classification of land cover units in permafrost regions? How can we retrieve snow accumulation rates from satellite data? The results of our analyses

Global Terrestrial Network for Permafrost (GTN-P) Link to GTN-P Project Website

Guido Grosse Arctic permafrost landscape dynamics and Earth System feedbacks Permafrost coring in the Fish Creek Delta, North Alaska (Photo: Alfred Wegener Institut) Arctic permafrost landscapes change rapidly [...] of rapid permafrost thaw processes. I am also overseeing the establishment of the new Arctic Permafrost Geospatial Center (APGC) that is planned as a focus point for distribution of permafrost-related [...] Geo-informatics, land-surface dynamics, permafrost Dr. Josefine Lenz Working title of PhD project: Permafrost and landscape dynamics in Central Beringia Permafrost landscapes are very dynamic and influenced

thawing in permafrost regions, e.g. in Sibiria. CH4 introduces a significant feedback mechanism to the climate change problem, as global warming leads to a poleward retreat of vast permafrost regions in

Expedition Central Yakutia 2015 Permafrost core description Coring Permafrost Coring permafrost Packing permafrost cores Coring through a frozen thaw lake Ice road down the river Lena Pingo in Central

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

Networks Permafrost Carbon Network: www.permafrostcarbon.org IPA Action Group Yedoma Carbon: ipa.arcticportal.org/images/stories/AG_reports/AG4_for_website.pdf PYRN (Permafrost Young Researchers [...] Institute of Earth Sciences Russia Northeast Science Station, Cherskii Dr. Sergei Zimov Mel'nikov Permafrost Institute, Russian Academy of Sciences, Siberian Branch, Yakutsk Dr. Alexandr Fedorov, Dr. Pavel

Permafrost carbon Sampling a Yedoma cliff, Sobo Sise island, Lena Delta (Photo: Alfred Wegener Institut) Arctic landscapes, especially those underlain by permafrost, are threatened by climate warming and [...] cycle as greenhouse gases, which accelerate warming and inducing more permafrost thaw and carbon release. This loop is called permafrost–carbon feedback, and as this effect is strengthening itself, it is [...] ked a large amount of carbon. To assess the concern of a permafrost carbon feedback and to develop a better understanding of future permafrost-carbon dynamics, the PETA-CARB project aims at quantifying