Hugues Lantuit

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

MOMENT

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

How Arctic lakes are accelerating climate change

Permafrost
In the future, climate change could abruptly increase the amount of methane released by lakes in the permafrost regions of the Arctic. The explanation: because of thawing permafrost, these

Alaska-2016-08

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

Bykovsky-April-2017

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

The sleeping giant is waking

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

Symposium_program.pdf

project KoPf - Carbon in permafrost Moderator T. Eckhardt 09:30-09:40 Eva-Maria Pfeiffer The KoPf project - Carbon in permafrost regions 09:40-10:00 Victor Brovkin Permafrost carbon dynamics in deglaciation [...] carbon turnover in eroding permafrost deposits of Kurungnakh Island, northeast Siberia 11.00-11.20 Evgeny Abakumov Molecular composition of soil organic matter of selected permafrost affected soils of the Russian [...] Sentinel-2 data for Arctic permafrost regions Josefine Walz Soil organic matter decomposition in Siberian tundra soils Sizhong Yang Microbial response to long-term permafrost thaw Janet Rethemeyer Tracing

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Poster_Permarisk_Bonn_May18_final2.pdf

Spaceborne platforms Kartierung und Fernerkundung Permafrost in einem sich erwärmenden Klima Deadhorse, Prudhoe Bay Churchill, Manitoba Lena Delta, Sibirien Permafrost in Landoberflächen-Modellen Modellierung Photo: [...] of permafrost temperatures in a tundra lowland landscape. Remote Sensing of Environment 135, 12–24. Westermann et al., 2016: Simulating the thermal regime and thaw processes of ice-rich permafrost ground [...] Churchill, einem Zentrum für arktischen Tourismus, leben um die 900 Einwohner. Die Stadt ist auf Permafrost gebaut. Mit unseren Arbeiten wollen wir dazu beitragen, geeignete Anpassungsstrategien für die

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Energy and Waterfluxes

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

Labs

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