Fig. 4: Evolution of Arctic amplification in CESM2 LE.
From: The role of sea ice in present and future Arctic amplification
a Ratio of the Arctic-mean annual-mean SAT change to global-mean annual-mean SAT change in the 10-member CESM2 LE extended simulations, with the x-axis representing the first year of various 60-year periods. The SAT changes are computed by subtracting the first 20-year average from the last 20-year average over a given 60-year period. The box covers the inter-quartile range with the line inside the box representing the median value across the ensemble members and whiskers denoting the maximum and minimum values. b Ensemble-mean ratio of the corresponding Arctic-mean monthly-mean SAT change to global-mean monthly-mean SAT change. In (b), the y-axis denotes month from January to December. Stippling denotes cases where the ensemble-mean ratio minus 1 is smaller than two standard deviations across the ensemble members. Regions with the ensemble-mean ratio smaller than 1 are also stippled. Note non-linear colour scales.
