Articles | Volume 14, issue 4
https://doi.org/10.5194/cp-14-527-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/cp-14-527-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
24 Apr 2018
Research article |
| 24 Apr 2018
Spatio-temporal variability of Arctic summer temperatures over the past 2 millennia
Johannes P. Werner
CORRESPONDING AUTHOR
Bjerknes Centre for Climate Research and Department for Earth Science,
University of Bergen, P.O. Box 7803, 5020 Bergen, Norway
Dmitry V. Divine
Norwegian Polar Institute, Fram Centre, 9296 Tromsø, Norway
Department of Mathematics and Statistics,
University of Tromsø – The Arctic University of Norway, 9037, Norway
Fredrik Charpentier Ljungqvist
Department of History, Stockholm University, 106 91 Stockholm, Sweden
Bolin Centre for Climate Research, Stockholm University, 106 91 Stockholm, Sweden
Tine Nilsen
Department of Mathematics and Statistics,
University of Tromsø – The Arctic University of Norway, 9037, Norway
Pierre Francus
Centre – Eau Terre Environnement, Institut National de la Recherche Scientifique,
490 rue de la couronne, Québec, QC G1K 9A9, Canada
GEOTOP Research Center, Montréal, H3C 3P8, Canada
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Discussed (final revised paper)
Discussed (preprint)
Latest update: 27 Jun 2025
Short summary
We present a new gridded Arctic summer temperature reconstruction back to the first millennium CE. Our method respects the age uncertainties of the data, which results in a more precise reconstruction.
The spatial average shows a millennium-scale cooling trend which is reversed in the mid-19th century. While temperatures in the 10th century were probably as warm as in the 20th century, the spatial coherence of the recent warm episodes seems unprecedented.
The spatial average shows a millennium-scale cooling trend which is reversed in the mid-19th century. While temperatures in the 10th century were probably as warm as in the 20th century, the spatial coherence of the recent warm episodes seems unprecedented.
We present a new gridded Arctic summer temperature reconstruction back to the first millennium...
