Permafrost is warming at a global scale


Contact
Boris.Biskaborn [ at ] awi.de

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.



Item Type
Article
Authors
Divisions
Primary Division
Programs
Primary Topic
Research Networks
Peer revision
Scopus/ISI peer-reviewed
Publication Status
Published
Eprint ID
49253
DOI 10.1038/s41467-018-08240-4

Cite as
Biskaborn, B. K. , Smith, S. L. , Noetzli, J. , Matthes, H. , Vieira, G. , Streletskiy, D. A. , Schoeneich, P. , Romanovsky, V. E. , Lewkowicz, A. G. , Abramov, A. , Allard, M. , Boike, J. , Cable, W. L. , Christiansen, H. H. , Delaloye, R. , Diekmann, B. , Drozdov, D. , Etzelmüller, B. , Grosse, G. , Guglielmin, M. , Ingeman-Nielsen, T. , Isaksen, K. , Ishikawa, M. , Johansson, M. , Johannsson, H. , Joo, A. , Kaverin, D. , Kholodov, 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. and Lantuit, H. (2019): Permafrost is warming at a global scale , Nature Communications, 10 (1), pp. 1-11 . doi: 10.1038/s41467-018-08240-4


Share


Citation

Research Platforms

Campaigns

Funded by
info:eu-repo/grantAgreement/EC/H2020/773421


Actions
Edit Item Edit Item