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TitlePermafrost is warming at a global scale
AuthorBiskaborn, B K; Smith, S LORCID logo; Noetzli, J; Matthes, H; Vieira, G; Streletskiy, D A; Schoeneich, P; Romanovsky, V E; Lewkowicz, A G; Abranov, A; Allard, M; Boike, J; Cable, W L; Chrisiansen, H H; Delaloye, R; Diekmann, B; Drozdov, D; Etzelmüller, B; Grosse, G; Guglielmin, M; Ingeman-Nielsen, T; Isaksen, K; Ishikawa, M; Johansson, M; Johansson, H; Joo, A; Kaverin, D; Khodolov, A; Konstantinov, P; Kröger, T; Lambiel, C; Lanckman, J -P; Luo, D; Malkova, G; Meiklejohn, I; Moskalenko, N; Oliva, M; Phillips, M; Ramos, M; Sannel, A B K; Sergeev, D; Seybold, C; Skryabin, P; Vasiliev, A; Wu, Q; Yoshikawa, K; Zheleznyak, M; Lantuit, H
SourceNature Communications vol. 10, no. 264, 2019 p. 1-11, Open Access logo Open Access
LinksSupplementary Data - Données supplémentaires
Alt SeriesNatural Resources Canada, Contribution Series 20170339
PublisherSpringer Nature
Mediapaper; on-line; digital
File formatpdf; html
ProvinceCanada; British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut; Canada
NTS1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65; 66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560
Lat/Long WENS-180.0000 180.0000 90.0000 -90.0000
Subjectssurficial geology/geomorphology; environmental geology; Nature and Environment; permafrost; ground ice; climate; soils; organic carbon; ground temperatures; snow; statistical analyses; Global Terrestrial Network for Permafrost; Climate change; permafrost thaw; Trends
Illustrationstime series; geoscientific sketch maps; plots; schematic representations
ProgramClimate Change Geoscience Permafrost
Released2019 01 16
AbstractPermafrost warming has the potential to amplify global climate change, because when frozen sediments thaw it unlocks soil organic carbon. Yet to date, no globally consistent assessment of permafrost temperature change has been compiled. Here we use a global data set of permafrost temperature time series from the Global Terrestrial Network for Permafrost to evaluate temperature change across permafrost regions for the period since the International Polar Year (2007-2009). During the reference decade between 2007 and 2016, ground temperature near the depth of zero annual amplitude in the continuous permafrost zone increased by 0.39 ± 0.15 °C. Over the same period, discontinuous permafrost warmed by 0.20 ± 0.10 °C. Permafrost in mountains warmed by 0.19 ± 0.05 °C and in Antarctica by 0.37 ± 0.10 °C. Globally, permafrost temperature increased by 0.29 ± 0.12 °C. The observed trend follows the Arctic amplification of air temperature increase in the Northern Hemisphere. In the discontinuous zone, however, ground warming occurred due to increased snow thickness while air temperature remained statistically unchanged.
Summary(Plain Language Summary, not published)
A global data set of permafrost temperatures has been analysed to determine the change in permafrost temperatures that has occurred since the establishment of a standardized baseline during the International Polar Year (IPY, 2007-09). Permafrost has warmed since IPY throughout most of the permafrost regions at an average rate of about 0.3°C per decade. Greater warming has been observed in the high arctic compared to other regions. The warming since IPY appears to be consistent with that observed for the longer-term records that are available for some sites. Given current climate warming scenarios, it is anticipated that permafrost will continue to warm. These anticipated changes in permafrost conditions will have implications for both natural and human systems.

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