Thawing permafrost and thicker active layers in sub-arctic Sweden
(2008) In Permafrost and Periglacial Processes 19(3). p.279-292- Abstract
- Observations of active-layer thickness from nine sites with up to 29 years of gridded measurements located in the Tornetrask region, northernmost Sweden, were examined in relation to climatic trends. Mean annual air temperatures in this area have warmed and recently rose above 0 degrees C. Active layers at all sites have become thicker, at rates ranging from 0.7 to 1.3 cm per year. This trend has accelerated in the past decade, especially in the westernmost site where rates have reached 2 cm per year and permafrost has disappeared at 81 per cent of the sampling points. Increased active-layer thicknesses are correlated with increases in mean summer air temperature, thawing degree-days and, in five of the nine sites, with increases in snow... (More)
- Observations of active-layer thickness from nine sites with up to 29 years of gridded measurements located in the Tornetrask region, northernmost Sweden, were examined in relation to climatic trends. Mean annual air temperatures in this area have warmed and recently rose above 0 degrees C. Active layers at all sites have become thicker, at rates ranging from 0.7 to 1.3 cm per year. This trend has accelerated in the past decade, especially in the westernmost site where rates have reached 2 cm per year and permafrost has disappeared at 81 per cent of the sampling points. Increased active-layer thicknesses are correlated with increases in mean summer air temperature, thawing degree-days and, in five of the nine sites, with increases in snow depth. Copyright (C) 2008 John Wiley & Sons, Ltd. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1246628
- author
- Åkerman, Jonas LU and Johansson, Margareta LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Abisko, subarctic Sweden, active-layer thickness, thawing permafrost
- in
- Permafrost and Periglacial Processes
- volume
- 19
- issue
- 3
- pages
- 279 - 292
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000259296600002
- scopus:52949118018
- ISSN
- 1099-1530
- DOI
- 10.1002/ppp.626
- language
- English
- LU publication?
- yes
- id
- e525d37b-947f-419e-a14f-b77cbef438bf (old id 1246628)
- date added to LUP
- 2016-04-01 11:46:12
- date last changed
- 2022-04-28 19:39:07
@article{e525d37b-947f-419e-a14f-b77cbef438bf,
abstract = {{Observations of active-layer thickness from nine sites with up to 29 years of gridded measurements located in the Tornetrask region, northernmost Sweden, were examined in relation to climatic trends. Mean annual air temperatures in this area have warmed and recently rose above 0 degrees C. Active layers at all sites have become thicker, at rates ranging from 0.7 to 1.3 cm per year. This trend has accelerated in the past decade, especially in the westernmost site where rates have reached 2 cm per year and permafrost has disappeared at 81 per cent of the sampling points. Increased active-layer thicknesses are correlated with increases in mean summer air temperature, thawing degree-days and, in five of the nine sites, with increases in snow depth. Copyright (C) 2008 John Wiley & Sons, Ltd.}},
author = {{Åkerman, Jonas and Johansson, Margareta}},
issn = {{1099-1530}},
keywords = {{Abisko; subarctic Sweden; active-layer thickness; thawing permafrost}},
language = {{eng}},
number = {{3}},
pages = {{279--292}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Permafrost and Periglacial Processes}},
title = {{Thawing permafrost and thicker active layers in sub-arctic Sweden}},
url = {{http://dx.doi.org/10.1002/ppp.626}},
doi = {{10.1002/ppp.626}},
volume = {{19}},
year = {{2008}},
}