Fig. 2: Clear-sky hemispheric albedo asymmetry changes in historical CMIP6 runs. | Communications Earth & Environment

Fig. 2: Clear-sky hemispheric albedo asymmetry changes in historical CMIP6 runs.

From: Anthropogenic aerosol and cryosphere changes drive Earth’s strong but transient clear-sky hemispheric albedo asymmetry

Fig. 2

Average of the Northern Hemisphere minus Southern Hemisphere total clear-sky reflection (ΔRclr) and its atmospheric and surface contributions for the 2000–2015 period in the historical runs (a–c), 1850–1865 period in the historical runs (d–f), and 2000–2015 in the hist-piAer runs (g–i). Each model is shown as a colored bar: red for GFDL-ESM4 (GFDL), orange for GISS-E2-1-G (GISS), yellow for IPSL-CM6A-LR (IPSL), green for MIROC6 (MIROC), blue for MRI-ESM2-0 (MRI), indigo for NorESM2-LM (NorESM), and violet for UKESM1-0-LL (UKESM). Error bars for each model represent 95% confidence in the mean value. Diamond markers in d–i represent each model’s 2000–2015 historical run mean value for reference. CERES mean values are shown as gray lines with shading representing the 95% confidence interval. j–l Example time-series of historical (orange lines) and hist-piAer (blue lines) total (j), atmospheric (k), and surface (l) reflection asymmetries from the GISS-E2-1-G model and observed CERES mean values (black lines). Light gray shading in j–l represents the time period in which reliable space-based estimates of Earth’s albedo have been available.

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