Fig. 3: D&A analysis for the 1965 to 2014 time series of AI anomalies. | npj Climate and Atmospheric Science

Fig. 3: D&A analysis for the 1965 to 2014 time series of AI anomalies.

From: Human-caused long-term changes in global aridity

Fig. 3

The scaling factors and observed and attributable trends for global- (a, b), NH- (c, d), and SH-averaged (e, f) AIs were estimated using the OLS D&A method and the average of observations. The scaling factors were estimated one by one (1-forcing) and jointly (2- and 3-forcing). Error bars show 90% confidence intervals for the scaling factors. “ALL” used all the available CMIP6 models, “Limited” used the models that have both piControl and target forcing (e.g., ALL and ANT) simulations, “3-member” used models with large ensembles (≥3 members), and “Uniform” used models that have piControl and all the forcings (ALL, GHG, AER, NAT) simulations. The 3-member case was only displayed for the ALL forcing because it was identical to the All case for the other forcings.

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