On June 12, 2025, the 4th virtual training session by GRASP Earth, organized within the framework of the ATARRI project, was successfully conducted with the atmospheric cluster team of the ERATOSTHENES Centre of Excellence. This session marked a continuation of the collaborative efforts to strengthen aerosol remote sensing capabilities.
During the training, selected case studies previously processed with the GRASP algorithm were presented and thoroughly discussed with GRASP experts. These discussions provided valuable feedback and highlighted best practices, challenges, and opportunities for improvement. The session served as a platform to evaluate the current application of the GRASP algorithm using Synergy data — specifically from the CIMEL sun photometer (AERONET) and the PollyXT Polarization Raman lidar operated by the Cyprus Atmospheric Remote Sensing Observatory.
In addition, the team collaboratively planned the next steps for more advanced utilization of the GRASP algorithm. These include optimizing input configurations, refining retrieval approaches, and exploring the algorithm’s full potential for enhanced characterization of aerosol microphysical properties. The training significantly contributed to building expertise and shaping the roadmap for future research and operational implementation.