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The Cryosphere An interactive open-access journal of the European Geosciences Union
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Volume 11, issue 1
The Cryosphere, 11, 1–16, 2017
https://doi.org/10.5194/tc-11-1-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
The Cryosphere, 11, 1–16, 2017
https://doi.org/10.5194/tc-11-1-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 02 Jan 2017

Research article | 02 Jan 2017

Strong degradation of palsas and peat plateaus in northern Norway during the last 60 years

Amund F. Borge et al.

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Aalto, J. and Luoto, M.: Integrating climate and local factors for geomorphological distribution models, Earth Surf. Proc. Land., 39, 1729–1740, 2014.
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Åkerman, H. J. and Johansson, M.: Thawing permafrost and thicker active layers in sub-arctic Sweden, Permafrost Periglac., 19, 279–292, https://doi.org/10.1002/ppp.626, 2008.
Aune, B.: Temperaturnormaler. Normalperiode 1961–1990, DNMI KLIMA Report 02/93, Norwegian Meteorological Institute (MET), Oslo, Norway, 63 pp., 1993.
Barcan, V. S.: Stability of palsa at the southern margin of its distribution on the Kola Peninsula, Polar Science, 4, 489–495, https://doi.org/10.1016/j.polar.2010.07.002, 2010.
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Short summary
Palsas and peat plateaus are permafrost landforms in subarctic mires which constitute sensitive ecosystems with strong significance for vegetation, wildlife, hydrology and carbon cycle. We have systematically mapped the occurrence of palsas and peat plateaus in northern Norway by interpretation of aerial images from the 1950s until today. The results show that about half of the area of palsas and peat plateaus has disappeared due to lateral erosion and melting of ground ice in the last 50 years.
Palsas and peat plateaus are permafrost landforms in subarctic mires which constitute sensitive...
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