Winters in Siberian permafrost regions have warmed since millennia

Press release

Why permafrost might thaw sooner than expected

Permafrost
Experts from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), the Humboldt-Universität zu Berlin (HU) and the University of Oslo have determined that much [...] much of the permafrost that is currently still very cold might disappear by the end of the century. What’s new about their simulations: the inclusion of thermokarst processes. The outcomes of the study

Where is the world’s permafrost thawing?

first online data portal on global permafrost. In the Global Terrestrial Network for Permafrost (www.gtnp.org) researchers first collect all the existing permafrost temperature and active thickness layer [...] layer data from Arctic, Antarctic and mountain permafrost regions and then make it freely available for download. This new portal can serve as an early warning system for researchers and decision-makers

When the Arctic coast retreats, life in the shallow water areas drastically changes

Coastal erosion in the Arctic
The thawing and erosion of Arctic permafrost coasts has dramatically increased in the past years and the sea is now consuming more than 20 meters of land per year at some

What dangers lie in industrial contaminated sites in permafrost?

Industrial waste lurks in thousands of sites in the Arctic permafrost regions – some of it is highly toxic. If the permafrost thaws increasingly deeper due to the massive warming of the Arctic deeper and [...] is part of the joint project "ThinIce" (Thawing industrial legacies in the Arctic - a threat to permafrost ecosystems), which is funded by the German Federal Ministry of Education and Research with 1.9

Westermann_2016.pdf

strongly. 2.7 CryoGrid 3 Xice – a simple representation of permafrost thaw processes in ice-rich permafrost Excess ground-ice melt: in many permafrost landscapes, ground layers super-saturated with ice occur [...] n CryoGrid 3 Xice -- a simple representation of permafrost thaw processes in ice-rich permafrost Study area The Lena River delta The Samoylov permafrost observatory CryoGrid 3 runs for the Lena River delta [...] phenomena in fu- ture projections of permafrost thaw and subsequent climatic- triggered feedbacks. In this study, we present a new land- surface scheme designed for permafrost applications, Cryo- Grid 3, which

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Watching the Arctic Thaw in Fast-forward

Permafrost
The frozen permafrost in the Arctic is thawing on an alarming scale. By analysing an annual record of satellite images, researchers at the Alfred Wegener Institute have now confirmed these

WP4 engl

in WP5. Methods will include quantification of land to ocean carbon transport from glacier and permafrost melting and analysis of POC degradability and POC/DOC concentration and composition, organic matter

Volker_Rachold_AWI-Expert_UK.pdf

research centre in Potsdam, where he focused on geochemical investigations of Siberia’s rivers, permafrost and Laptev Sea coast. During this time, he led eight German-Russian Siberian expeditions. In 2002

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Underestimated Heat Storage

quantity of heat stored on land, showing the distribution of land heat among the continental ground, permafrost soils, and inland water bodies. The calculations, published in Earth System Dynamics , show that