Articles | Volume 14, issue 4
Clim. Past, 14, 527–557, 2018
https://doi.org/10.5194/cp-14-527-2018
Clim. Past, 14, 527–557, 2018
https://doi.org/10.5194/cp-14-527-2018

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 et al.

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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.