This dataset is based on the global off-line 3-D chenmical transport model (TOMCAT/SLIMCAT) forced with ECMWF reanalyses (ERA-Interim and ERA5) to compare the performance of the stratospheric ozone simulations. Each field is separately saved as NETCDF file. Each field is show on geographic coordinates, which can be longitude, latitude, vertical hybrid-pressure level (for zonal mean fields, such as ozone, temperature and age-of-air). The dimensions in each field are: lat --> latitude lon --> longitude lev --> hydrid pressure level time --> months of the simulation The output of total column ozone from the TOMCAT/SLIMCAT simulations forced with ERA-Interim and ERA5 for Figures 1-5 are in files: Fig1_2_3_4_5_toz_A_ERAI.nc Fig1_2_3_4_5_toz_B_ERA5.nc The output of zonal mean ozone profiles from the TOMCAT/SLIMCAT simulations forced with ERA-Interim and ERA5 for Figures 7, 9 and the supplementary figures S1-3 are in files: Fig6_7_9_S1_2_3_O3_mm_A_ERAI.nc Fig6_7_9_S1_2_3_O3_mm_B_ERA5.nc The output of zonal mean temperature from the TOMCAT/SLIMCAT simulations forced with ERA-Interim and ERA5 for Figure 8 are in files: Fig8_te_mm_A_ERAI.nc Fig8_te_mm_B_ERA5.nc The output of zonal mean age-of-air from the TOMCAT/SLIMCAT simulations forced with ERA-Interim and ERA5 for Figures 10-12 are in files: Fig10_11_12_Age_mm_A_ERAI.nc Fig10_11_12_Age_mm_B_ERA5.nc The output of the zonal mean ozone, temperature and age-of-air from the ERA5.1 reanalysis corrected simulations during the period from 2000 to 2006 in all Figures above using ERA5 are in files: ERA5_1_O3_2000_18.nc ERA5_1_te_2000_18.nc ERA5_1_Age_2000_18.nc