The three files contain the results of TOMCAT chemistry transport model simulations, forced with ERA5 meteorology. All three files provide ozone time series with a 5° latitude, 20° longitude and 3.3 km vertical grid. The "control-run" contains the ozone time series from 1980 to 2022, it is the reference full-chemistry CTM simulation. The SEN-fDyn and SEN-noPSC are two sensitivity runs, with repeating forcing (i.e. fixed dynamics) and without Polar Stratospheric Clouds (PSC)-related heterogeneous chemistry. The TOMCAT simulations prese.pdf provides a presentation of the data sets including a comparison with satellite limb observations and ozone trend results.