Fig. 3: Modern sea-ice, mean annual and summer temperatures in the southern Lincoln Sea region.
From: Seasonal sea-ice in the Arctic’s last ice area during the Early Holocene
a Annual mean sea-ice concentration in the southern Lincoln Sea (grey) including the LOESS (locally weighted scatterplot smoothing) smooth (black) and the 95% confidence interval (dashed black) from the Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS), 1978–202165. b JJA and mean annual temperatures at a location proximal to 12-GC and 14-GC (82.5 °N, 55 °W, 0 m MSL) from the ERA5 reanalysis (2 m atmospheric temperatures)64 (light grey) and the respective LOESS smooth (black) including the 95% confidence interval (dashed black), 1979–2021. c JJA and mean annual temperatures proximal to the Agassiz ice cores (80.75 °N, 73 °W, 1740 m MSL) from the ERA5 reanalysis (2 m atmospheric temperatures)64 (light grey) and the respective LOESS smooth (black) including the 95% confidence interval (dashed black), 1979–2021. The average of JJA temperatures for the Early Holocene interval characterized by seasonal sea-ice (dashed pink) and the 95% confidence interval (light pink) are included in the plot of JJA temperatures at the Agassiz ice cap.
