Graphics Library >> Permafrost

Tag: Permafrost

The Arctic region
An in-depth map showing the Arctic region, showing the continuous and discontinuous permafrost lines, the phytogeographic Arctic boundary, the limit of the data that has been provided by Conservation of Arctic Flora and ...
01 Nov 2006 - by GRID-Arendal
Projected temperature increases in the Arctic due to climate change, 2090 (NCAR-CCM3, SRES A2 experiment)
Climate change, due to increased concentrations of greenhouse gases in the atmosphere, has lead to increased temperatures and large scale changes in the Arctic. The Arctic sea ice is decreasing, permafrost thawing and th...
11 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Tundra
Tundra ecosystems are dense in carbon. They have little potential to gain more carbon but a huge amount could be lost if the permafrost were to thaw. Prevention of climate change is currently the only failsafe method o...
11 Feb 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Permafrost loss in peatlands of northern Quebec, 1957-2003
Over recent years, the southern limit of permafrost in northern peatlands has retreated by 39 km on average and by as much as 200 km in some parts of the Canadian Arctic. Although regional warming by 1.32°C has accelerat...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Permafrost distribution in the Arctic
Most of the Arctic is covered by ice and snow for more than eight and even up to twelve months a year, but conditions are highly variable, ranging from snow several metres deep each winter to the polar deserts of norther...
11 Feb 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal