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. 2018 Jun 22;8:9535. doi: 10.1038/s41598-018-27770-x

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Decadal trends show increasing annual means for the Abisko area including annual air temperature (updated from Callaghan et al.³¹), autumnal active layer thickness (from 1978, updated from Akerman & Johansson¹⁷; bars represent standard deviations) and wetness data from Stordalen (based on three values from 1970, 1990 and 2008, updated from Malmer et al.¹⁸). Temperature data were collected at the Abisko Scientific Research Station, 10 km from Stordalen. Active layer thickness were measured in multiple mires in the Abisko area. The data on percent wetness from 2008 and ALT from 2007 is a contribution from this study.