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Permafrost Map for ...
Permafrost Map for Norway, Sweden and Finland
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- Gisnås, Kjersti (author)
- University of Oslo
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- Etzelmuller, Bernd (author)
- University of Oslo
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- Lussana, Cristian (author)
- Norwegian Meteorological Institute
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- Hjort, Jan (author)
- University of Oulu
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- Sannel, A. Britta K. (author)
- Stockholm University,Stockholms universitet,Institutionen för naturgeografi
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- Isaksen, Ketil (author)
- Norwegian Meteorological Institute
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Westermann, Sebastian (author)
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- Kuhry, Peter (author)
- Stockholm University,Stockholms universitet,Institutionen för naturgeografi
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- Christiansen, Hanne H. (author)
- University Centre in Svalbard
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- Frampton, Andrew (author)
- Stockholm University,Stockholms universitet,Institutionen för naturgeografi
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- Åkerman, Jonas (author)
- Lund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science
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(creator_code:org_t)
- 2016-11-05
- 2017
- English.
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In: Permafrost and Periglacial Processes. - : Wiley. - 1045-6740 .- 1099-1530. ; 28:2, s. 359-378
- Related links:
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http://jultika.oulu....
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Subject headings
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- A research-based understanding of permafrost distribution at a sufficient spatial resolution is important to meet the demands of science, education and society. We present a new permafrost map for Norway, Sweden and Finland that provides a more detailed and updated description of permafrost distribution in this area than previously available. We implemented the CryoGRID1 model at 1km(2) resolution, forced by a new operationally gridded data-set of daily air temperature and snow cover for Finland, Norway and Sweden. Hundred model realisations were run for each grid cell, based on statistical snow distributions, allowing for the representation of sub-grid variability of ground temperature. The new map indicates a total permafrost area (excluding palsas) of 23 400km(2) in equilibrium with the average 1981-2010 climate, corresponding to 2.2 per cent of the total land area. About 56 per cent of the area is in Norway, 35 per cent in Sweden and 9 per cent in Finland. The model results are thoroughly evaluated, both quantitatively and qualitatively, as a collaboration project including permafrost experts in the three countries. Observed ground temperatures from 25 boreholes are within +/- 2 degrees C of the average modelled grid cell ground temperature, and all are within the range of the modelled ground temperature for the corresponding grid cell. Qualitative model evaluation by field investigators within the three countries shows that the map reproduces the observed lower altitudinal limits of mountain permafrost and the distribution of lowland permafrost.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Keyword
- Scandinavia
- permafrost map
- CryoGRID1
- permafrost modelling
- CryoGRID1
- Permafrost map
- Permafrost modelling
- Scandinavia
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Gisnås, Kjersti
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Etzelmuller, Ber ...
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Lussana, Cristia ...
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Hjort, Jan
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Sannel, A. Britt ...
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Isaksen, Ketil
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show more...
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Westermann, Seba ...
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Kuhry, Peter
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Christiansen, Ha ...
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Frampton, Andrew
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Åkerman, Jonas
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Physical Geograp ...
- Articles in the publication
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Permafrost and P ...
- By the university
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Stockholm University
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Lund University