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Title: Permafrost is warming at a global scale
Author: Biskaborn, Boris K.
Smith, Sharon L.
Noetzli, Jeannette
Matthes, Heidrun
Vieira, Gonçalo
Streletskiy, Dmitry A.
Schoeneich, Philippe
Romanovsky, Vladimir E.
Lewkowicz, Antoni G.
Abramov, Andrey
Allard, Michel
Boike, Julia
Cable, William L.
Christiansen, Hanne H.
Delaloye, Reynald
Diekmann, Bernhard
Drozdov, Dmitry
Etzelmüller, Bernd
Grosse, Guido
Guglielmin, Mauro
Ingeman-Nielsen, Thomas
Isaksen, Ketil
Ishikawa, Mamoru
Johansson, Margareta
Johannsson, Halldor
Joo, Anseok
Kaverin, Dmitry
Kholodov, Alexander
Konstantinov, Pavel
Kröger, Tim
Lambiel, Christophe
Lanckman, Jean-Pierre
Luo, Dongliang
Malkova, Galina
Meiklejohn, Ian
Moskalenko, Natalia
Oliva Franganillo, Marc
Phillips, Marcia
Ramos, Miguel
Sannel, A. Britta K.
Sergeev, Dmitrii
Seybold, Cathy
Skryabin, Pavel
Vasiliev, Alexander
Wu, Qingbai
Yoshikawa, Kenji
Zheleznyak, Mikhail
Lantuit, Hugues
Keywords: Canvis climàtics
Sòls gelats
Escalfament global
Climatic changes
Frozen ground
Earth temperature
Global warming
Issue Date: 16-Jan-2019
Publisher: Nature Publishing Group
Abstract: Permafrost 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.
Note: Reproducció del document publicat a:
It is part of: Nature Communications, 2019, vol. 10, num. 1, p. 264
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ISSN: 2041-1723
Appears in Collections:Articles publicats en revistes (Geografia)

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