ASP-Quality Assurance Procedures V05-09-2025

Detailed instructions are provided for the deployment, operation, quality control, and calibration of CIMEL photometers within the AERONET-ACTRIS network, for both stationary and mobile/marine sites. Through rigorous facility-based calibration, weekly local and remote QC, and network-level verification, every CIMEL CE318T photometer remains a reliable and accurate instrument for climate research, atmospheric monitoring, and environmental policy applications. This Guide summarizes the main relevant information all users / instruments PI must be aware of.