ACTRIS in the Earth system landscape: interoperable observations from research to services

Environmental challenges require Research Infrastructures (RIs) that combine long-term observations with innovation in technologies and services. The Aerosol, Clouds and Trace Gases Research Infrastructure (ACTRIS) addresses this need within the atmospheric domain by integrating advanced observational platforms with user-oriented, interoperable services that enhance scientific and societal impact.

ACTRIS supports technological innovation through state-of-the-art in situ and remote sensing instrumentation, mobile platforms and atmospheric simulation chambers. These Exploratory and Observational Platforms enable process-oriented studies, instrument and methodological developments, while FAIR, long-term and high-quality datasets contribute to international frameworks, ensuring scientific robustness and continuity. ACTRIS observations are also key in the development, evaluation and validation of climate and atmospheric composition models, such as those used by the Copernicus Atmosphere Monitoring Service (CAMS), as well as in the calibration and validation of satellite missions, including EarthCARE.

In parallel, ACTRIS offers virtual, physical and hybrid Trans-National Access (TNA) to advanced facilities, data and expertise, fostering collaboration, experimentation and co-creation across Europe. Engagement within the ENVRI community and the ERIC Forum further supports shared innovation pathways and user-oriented approaches.