These difference climatologies were created in a similar way to the climatologies of MOZAIC described on the previous pages. The MACC reanalysis (fbov) was interpolated the the MOZAIC aircraft flight trajectories for the years 2003-2008.
CO is underestimated and ozone is overestimated in the upper troposphere. In the lower stratosphere, the reverse is true; CO is overestimated and ozone is underestimated.
A full description of the differences between the model and the oberservations and the effect of the assimilation can be found in Gaudel et al. 2015.