Permafrost is a sub-ground phenomenon and therefore cannot be directly observed from
space. It is an Essential Climate Variable and associated with climate tip** points. Multi …

Amplification of global warming in Arctic and boreal regions is causing significant changes
to permafrost‐affected landscapes. The nature and extent of the change is complicated by …

The term thermokarst describes the processes and landforms that involve collapse of the
land surface as a result of the melting of ground ice. We review the literature that has …

Abstract Changes of permafrost not only affect regional and global water circulation, carbon
deposit and climate warming, but also influence ground ecological, geophysical, and …

Multitemporal interferometric synthetic aperture radar (InSAR) observations are used to
characterize spatial variations of the permafrost active layer and its temporal evolution in …

Unmanned Aerial Vehicle (UAV) systems, sensors, and photogrammetric processing
techniques have enabled timely and highly detailed three-dimensional surface …

In cold regions where soils freeze and thaw annually, the ground surface deforms due to the
density difference between groundwater and ground ice. Here we mapped thaw subsidence …

Observations of coastline retreat using contemporary very high resolution satellite and
historical aerial imagery were compared to measurements of open water fraction, summer …

Low-land permafrost areas are subject to intense freeze-thaw cycles and characterized by
remarkable surface displacement. We used Sentinel-1 SAR interferometry (InSAR) in order …

Ice-wedge networks underlie polygonal terrain and comprise the most widespread form of
massive ground ice in continuous permafrost. Here, we show that climate-driven thaw of …