Permafrost
For years now, scientists have been investigating how the gradual thawing of near-surface permafrost, which takes place in the uppermost layers of Arctic soils and in the course of decades [...] another phenomenon, which has only been sporadically investigated: the abrupt thawing of ice-rich permafrost, which can transform entire landscapes in only months of years through subsidence, the formation

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

Potsdam. Permafrost Arctic Coastal Processes Arctic Coastal Geochemistry The permafrost coasts of the Arctic make up 34 per cent of the world's coastline and represent a key interface for human-environmental [...] Thaw on the Arctic permafrost coasts Prof. Dr. Hugues Lantuit, head of the Arctic coastal erosion research group at the Alfred Wegener Institute and professor for polar coasts at the University of Potsdam [...] high biodiversity and productivity and support indigenous lifestyles. At the same time, Arctic permafrost coasts are a particularly heat-sensitive area. Rising air and water temperatures as well as increasing

sea ice, thawing of permafrost is mostly taking place in the hidden depths of the ground. By causing profound ecological upheaval and destabilizing infrastructure, thawing permafrost has a direct impact [...] Landscapes is indicated by altering polygonal structures and permafrost thaw. Polygons in Northwest Canada indicating the presence and state of permafrost City of Aklavik in the Mackenzie Delta, September 2022 [...] Education and Research (BMBF) is gathering reliable and up-to-date data on the state and rate of permafrost thaw to provide better insights on landscape disturbances and the impact on people living in the

the collected soil samples. Project Information Contact www.moment-permafrost.uni-hamburg.de/en/kontakt.html Website www.moment-permafrost.uni-hamburg.de/en.html Project Duration November 2022 until October [...] MOMENT The project " Permafrost Research Towards Integrated Observation and Modelling of the Methane Budget of Ecosystems," abbreviated as MOMENT, aims to reduce uncertainties in future greenhouse gas [...] This requires a comprehensive qualitative and quantitative understanding of the methane cycle in permafrost regions. In the Blæsedalen Valley on Disko Island, West Greenland, various studies on the current

Expedition Bykovsky Peninsula 2017 Degradation of sub-aquatic permafrost can, impact offshore infrastructure, affect coastal erosion and release large quantities of methane, which may reach the atmosphere [...] injections into the sediment. The relative importance of these controls on the rate of sub-aquatic permafrost degradation, however, remains poorly understood. Therefore, the overarching science goal for the [...] the 2017 Bykovsky Spring Expedition was to evaluate the nature and distribution of subaquatic permafrost and taliks in multiple cryostratigraphic settings with drilling, sampling, near-surface geophysics

Frozen organic matter in a permafrost core Validation flight over Kobuk river valley Sunset at Kotzebue, Alaska Sunset at Kotzebue, Alaska Ingmar on his way to the next permafrost coring location carriyng [...] features in the Kobuk Valley National Park Matthias and Guido sampling permafrost cores in the Kobuk Delta Jens describing a permafrost exposure on the Baldwin Peninsula while Bill from the U.S. Fish and [...] and Wildlife Service is taken care of the bear safety Ben Jones and Josefine coring permafrost with the SIPRE corer in the Noatak Delta Being around 12 years old, the Selawik Slump is already stabilized and

Permafrost
The fate of permafrost - soil that is frozen for 2 or more years - is of huge importance for the global climate because of the large amounts of organic carbon stored in it, which can be released

Upscaling of permafrost region field measurements with remote sensing Generating permafrost remote sensing datasets suitable for model parametrization and validation Making geospatial permafrost datasets available [...] and other permafrost-region disturbance dynamics Mapping periglacial geomorphology, land surface changes, and surface deformation Advancing machine learning and deep learning for permafrost region remote [...] Laboratories Sedimentology Aim: Study of transport and accumulation processes of permafrost-related deposits Classification of sediment sequences in general Parameters: Sediment structure description

fluxes at the plot and landscape scales in different permafrost affected ecosystems; Developing a process-oriented model for the typical Arctic permafrost system to predict subsurface processes (soil water [...] working on the following projects: MOMENT MOSES SIOS HEIBRiDS Climate and Permafrost Sonification Citizen Science Projekt Permafrost Thaw We cooperate with scientists around the world, including: Wilfrid [...] Laura Becker Moritz Rath Sofia Bauriedl Publications Projects BMBF MOSES Permafrost Thaw Action Group Common Grounds – Permafrost Sonification HEIBRiDS FLO CHAR PERMANOR EU PAGE21 PermaSAR