Fig. 4: N2O lifetime trends. | Communications Earth & Environment

Fig. 4: N2O lifetime trends.

From: Semi-empirical estimates of stratospheric circulation and the lifetimes of chlorofluorocarbons and carbon tetrachloride

Fig. 4

A The N2O lifetime calculated using ACE-FTS N2O measurements and a photochemistry model from 2004 to 2021 and the corresponding decadal trend. B The same as panel A but for years 2004 to 2023. Note the difference in trend based on choice of end-year. Blue lines show the lifetime for each season, while the red lines show the running annual average.

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