of images from Mann et al. (2004) . Screenshot SHERPA (Photo: Alfred-Wegener-Institut) Segmented diatom valve (Photo: Alfred-Wegener-Institut)

work processes to students in the lab. (Photo: Sina Löschke) The Alfred Wegener Institute (AWI) promotes students already at the start of their academic career. Through close connections of our scientists

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 may degrade in [...] column. Scheme of the permafrost carbon feedback loop (Photo: Alfred Wegener Institut) Today, we know that syngenetic freezing of organic matter over a period of thousands of years sequestered and

Partners HB-Cluster: • Alfred Wegener Institute for Polar and Marine Research • University of Bremen, Department of Geosciences • MARUM, Center for Marine

REKLIM website . Circumpolar Map of Northerm Hemisphere (Graphic: Alfred Wegener Institut) Project collaborators Lars Max Ralf Tiedemann Figure 1: Overview map of high-latitude Northern Hemis-phere showing

(modified from Kipf et al., Gondwana Research, 2014). (Photo: Alfred-Wegener-Institut) Geodynamic and tectonic processes played a dominant role in forming the present topographic relief of West Antarctica

Permafrost coring in the Fish Creek Delta, North Alaska (Photo: Alfred Wegener Institut) Arctic permafrost landscapes change rapidly under the influence of natural and anthropogenic disturbances. My [...] their vulnerability to mobilization Alaskan Yedoma cliff (Photo: Alfred Wegener Institut) Arctic landscapes underlain by permafrost are threatened by climate warming and may degrade by gradual active [...] by thermal erosion thermoerosional valley Kurungnakh (Photo: Alfred-Wegener-Institut) Thermo-erosional valleys are widely distributed in ice-rich permafrost deposits of arctic lowlands, but have not

thickness (April 2015) obtained from CryoSat-2 data (Graphic: Alfred Wegener Institut) Contact: Dr. Stefan Hendricks The inaccessibility and sheer size of sea ice covered regions in the Arctic and [...] ice floes above the sea surface with radar altimeters (Graphic: Alfred Wegener Institut)

Atlantic/Arctic Ocean Sea Ice Model (NAOSIM) developed at the Alfred Wegener Institute (AWI). We are currently working to apply the systems to Finite-volumE Sea ice-Ocean Model (FESOM2), also developed [...] , black: model simulation with data assimilation. (Graphic: Alfred-Wegener-Institut) Spatial pattern of sea ice motion in August 2006: Left panel: model simulation without data assimilation, center [...] simulation with data assimilation, right panel: observation. (Photo: Alfred-Wegener-Institut)

Example of Microstructure Mapping image (Photo: Ilka Weikusat, Alfred-Wegener-Institut) An essential part of ice core research at the AWI consists of mapping the microstructural parameters (grain size