Fig. 2: Reconstruction and attribution of winter Arctic tropospheric temperature (T) trends during 1980-2024. | Communications Earth & Environment

Fig. 2: Reconstruction and attribution of winter Arctic tropospheric temperature (T) trends during 1980-2024.

From: Changes in sea ice concentration explain half of the winter warming of the Arctic surface

Fig. 2

a Observed (black dot) and regressed (red circle) trends (K decade-1) of area-averaged DJF-mean T over the Arctic (poleward of 70°N). All of trends are statistically significant at the 99% confidence level. b Contribution (%) of PET (black), PET-adjusted SIC (blue), and CO2 (red) indices to regressed T trends.

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