of permafrost characteristics. In addition to their remoteness and difficult accessibility, all of them are vulnerable to rapid external disturbances due to the presence of very ice-rich permafrost close [...] characteristics of the surrounding permafrost because of the high heat storage capacity of water. A comprehensive inventory of thermokarst lakes in ice-rich permafrost and the documentation of current lake [...] not only very exciting visually but convey important scientific information on the stability of permafrost and changes in the northern the carbon cycle. The Siberian and Alaskan key study regions of the

investigation into the rapidly changing permafrost regions in the northern hemisphere. The project seeks to answer pressing questions about the role of permafrost thaw in the global climate system, and [...] the people living in these regions. The culmination of this ambitious endeavour is the "Arctic Permafrost Atlas," a ground-breaking publication set to launch during the Arctic Circle Assembly on October

glaciers and sea ice, can be observed directly, most of the permafrost’s melting takes place deep below the surface. However, since the permafrost stores huge quantities of carbon, which is released in the [...] thawing will further worsen global warming. In order to collect reliable, up-to-date information on permafrost thawing, the joint project UndercoverEisAgenten was launched today.

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

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

(Photo: Julia Boike) Observational data density in the permafrost region is low. At the Samoylov site in the Lena River Delta, Siberia, the mean permafrost temperature was −8 °C, with a zero-amplitude depth [...] layer, temperature down to 26 m in the permafrost. Since the data provide observations of temporally variable parameters that mitigate energy fluxes between permafrost and atmosphere, they are suitable for [...] for use in integrating, calibrating and testing permafrost as a component in earth system models. Science: Prof. Dr. Julia Boike Technique: Niko Bornemann Data and Publications: LTO-Trendviewer LTO-Data

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

human activity in the Arctic takes place along permafrost coasts. These coasts have become one of the most dynamic ecosystems on Earth because permafrost thaw is now exposing them to rapid change: change [...] fates of organic matter released from thawing coastal and subsea permafrost; (2) assess what risks are posed by thawing coastal permafrost, to infrastructure, indigenous and local communities and people’s [...] system. NUNATARYUK is a H2020 project that investigates the impacts of thawing coastal and subsea permafrost on the global climate, and develops targeted and co-designed adaptation and mitigation strategies

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

and property of permafrost and can reflect as well as analyze them. Students will be able to describe the landscape development of permafrost regions and develop scenarios of how permafrost has changed in [...] how permafrost regions change in a rapidly warming Arctic and what the local to global feedbacks are. The students will learn about Arctic climate change, the cryosphere, and permafrost; Permafrost landscapes [...] into the formation, structure and change of permafrost landscapes. Basic knowledge of the material and substance turnover during thawing and freezing of permafrost soils is provided. The relationship between