The ACTRIS network is structured in National Facilities, made up of observation platforms and exploratory platforms, and in Central Facilities, fundamental for the provision of high-quality harmonized data, obtained both within Europe and at selected global sites, providing users with access to state-of-the-art, well-characterized and versatile facilities.
Currently, Spain contributes to the ACTRIS National Facilities with observation platforms distributed in the peninsula and the Canary Islands (three ground-based aerosol remote sensing stations, one ground-based cloud remote sensing station, seven in situ aerosol measurement stations) and with an exploratory platform (atmospheric simulation chamber). It also participates in the Central Data Centre and the Centre for Aerosol Remote Sensing Calibration (CARS). It is foreseeable that in the expected long life of ACTRIS ERIC, other organisations and facilities will contribute from Spain to the European infrastructure.