AirClim computes the global near surface temperature change induced by carbon dioxide (CO2), water vapor, nitrogen oxides (NOx) and line-shaped contrails from subsonic and supersonic aircraft. AirClim is designed to take the amount and location of the emissions into account and uncertainty ranges are considered for lifetimes, radiative forcing calculations and efficacies. AirClim comprises a linearization of atmospheric processes from the emission to radiative forcing, and near surface temperature change. As a result, AirClim is a simple and numerically efficient software tool. AirClim has been applied to a range of applications with various technology options with subsonic and supersonic aircraft for the next century.
Fig. 10 of the paper shows the impact of subsonic aviation for the years 2000, 2100, and 2250 applying the metrics radiative forcing and near surface temperature change. Further metrics may be added. Until 2100, the climate impact by CO2 and NOx-emissions from aviation are of similar magnitude in terms of near surface temperature changes.