Ground ice at Cape Marre-Sale, Yamal Peninsula, Russia (Daniel Fortier)

October 28, 2016 in post

Daniel

Cape Marre-Sale, Yamal Peninsula, Russia. Mike Angelopoulos, Daniel Fortier, E. Godin and Mark T. Jorgenson (Photo: Eva Stephani)

The origin of ground ice is important to understand how the landscape evolved in the past and will continue to change in response to climate change. Geocryolab members and colleagues worked on the origin of ground ice at Cape Marre-Sale. We proposed that buried glacial-related ice forms vast portion of the permafrost of these icy coastal cliffs.

Additional information: Fortier et al. 2012. Origin of massive ice at Cape Marre-Sale, Yamal Peninsula, Siberia, Russia: contrasting views: https://www.researchgate.net/publication/269710232_Origin_of_massive_ice_at_Cape_Marre-Sale_Yamal_Peninsula_Siberia_Russia_contrasting_views

Beaded stream, Yamal Peninsula, Siberia, Russia.

October 27, 2014 in post

Beaded stream is a type of periglacial stream which is characterized by its seesaw pattern and numerous ‘beads’. Beaded streams evolve over hundreds of years from the degradation of the upper portion of ice wedges due to water flow in ice wedge trough. The so-called beads are located at the junction of ice wedges. Beaded stream are expected to become more frequent in response to climate warming.

Glossary : http://nsidc.org/fgdc/glossary/

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(Photo D. Fortier © Geocryolab. If you’re interested to use this picture free of charge for research, publications or courses, please contact us)

 

Thermokarst lakes in Yamal Peninsula, Russia

December 16, 2013 in slideshow-en

Thermokarst - RU

 

 

 

 

 

 

 

 

 

 

 

 

 

Thernokarst lakes in the permafrost zone, Yamal Peninsula, Russia