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. 2020 Sep 3;244:117834. doi: 10.1016/j.atmosenv.2020.117834

Fig. 6.

Fig. 6

Timeseries of calculated ERF values and confidence intervals for annual aviation forcing terms from 2000 to 2018. The top panel shows all ERF terms and the bottom panel shows only the NOx terms and net NOx ERF. All values are available in the SD spreadsheet, in Table 2, Table 3, and in Fig. 3 for 2018 values. The net values are not arithmetic sums of the annual values because the net ERF, as shown in Fig. 3 for 2018, requires a Monte Carlo analysis that properly includes uncertainty distributions and correlations (see text).