On March 28, 2025, in the framework of the ATARRI project the to the atmospheric cluster of the ERATOSTHENES Centre of Excellence team was successfully implemented. This initial training focused on the fundamentals of the GRASP algorithm, including the structure and configuration of input files and the processing of photometer data, specifically from the CIMEL sun photometer of the AERONET network. Participants gained a solid understanding of the GRASP code framework and essential setup procedures. This session laid the groundwork for future trainings and marked a significant step toward building the team’s technical expertise in aerosol retrieval techniques.
