Data from the EBAS database (https://ebas.nilu.no/), hosted by NILU, were integrated into the TOAR-II database. All available ozone time series were inserted, and further time series of ozone measuring stations relevant within the framework of TOAR were also included in the TOAR-II database. The data were connected to one or more of the following frameworks and programmes: the UN-ECE/CLRTAP European Monitoring and Evaluation Programme (EMEP), the WMO Global Atmosphere Watch World Data Centre for Reactive Gases (GAW-WDCRG) and the Aerosols, Clouds and Trace Gases Research Infrastructure (ACTRIS).
