Vertical profiles of global seasonal mean ozone in five distinct layers throughout the troposphere

Two datasets (and files) are provided. Both are vertical profiles of tropospheric ozone (O₃) in five distinct layers in the atmosphere: one in the boundary layer (below 800 hPa), two in the middle troposphere (800-600 hPa, 600-450 hPa), and two in the upper troposphere (450-320 hPa, 320-180 hPa). The first is derived with TROPOMI satellite observations and the second simulated with the GEOS-Chem chemical transport model (CTM).The satellite-derived data are obtained by cloud-slicing TROPOMI partial columns (stratosphere + troposphere) of O₃ retrieved above optically thick clouds (optical cloud fraction > 0.7) from June 2018 to May 2022 to obtain seasonal multiyear mean global gridded (1^o x 1^o) O₃.The second dataset is GEOS-Chem O₃ at the global 2^o x 2.5^o(latitude x longitude) resolution sampled at 12:00-15:00 local solar time (LST) to be centred at the TROPOMI overpass time (13:30 LST). The model data are also multiyear means, but for 2015-2019, due to the time-lag in availability of emission inventories of precursors of O₃. NaNs in the GEOS-Chem data are high-altitude mountainous regions in the lowest layers or above the tropopause in the highest layers.Development of a cloud-slicing algorithm for application to TROPOMI using synthetic data from GEOS-Chem, evaluation of the satellite-derived data against global and regional ozonesonde networks and application of the evaluated cloud-sliced data to assess current understanding of tropospheric O₃ as simulated with the GEOS-Chem model are detailed in the accompanying paper submitted for review to Wiley's Journal of Geophysical Research (JGR).