Fig. 2: Second coupled pair of global SST (ERSSTv5) and Arctic SIC, T2M, and SLP (ERA5) October–March anomalies from 1950 to 2024. | npj Climate and Atmospheric Science

Fig. 2: Second coupled pair of global SST (ERSSTv5) and Arctic SIC, T2M, and SLP (ERA5) October–March anomalies from 1950 to 2024.

From: Drivers of winter Arctic sea ice variability

Fig. 2: Second coupled pair of global SST (ERSSTv5) and Arctic SIC, T2M, and SLP (ERA5) October–March anomalies from 1950 to 2024.The alternative text for this image may have been generated using AI.

The SST spatial structure of the second CCA pair (a), explaining 16.1% of variance, together with coupled Arctic SIC (c; 12.4% of variance), T2M (d; 8.4% of variance), and SLP (e; 3.9% of variance) fields north of 50° N for SIC and T2M, and north of 40° N for SLP. The correlation between their corresponding time series (b) is 0.93. Their correlation with AMO Index (red line) is 0.45 (95% confidence level).

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