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Validation Data

S5P TROPOMI L2_O3_PR ozone profile data are routinely compared to ground-based measurements acquired by instruments contributing to WMO’s Global Atmosphere Watch (GAW), the Network for the Detection of Atmospheric Composition Change (NDACC), Southern Additional Ozonesonde programme (SHADOZ), and Tropospheric Ozone Lidar Network (TOLNET): (1) balloon-borne ozonesondes, (2) tropospheric differential absorption ozone lidars (DIAL), and (3) stratospheric DIAL. The ground-based data are collected through ESA’s Validation Data Centre (EVDC) and the respective data host facilities of the ground-based networks. A map containing all station locations is shown below.