ScIce-2025 – Database of Light Backscattering Matrices for Randomly Oriented Ice Crystal Particles of Cirrus Clouds

This report introduces ScIce-2025 – a database of light backscattering matrices for randomly oriented ice crystal particles of cirrus clouds. It contains the full spectrum of observed particle sizes (0.1–10,000 μm) and was obtained for three key lidar wavelengths (0.355, 0.532, and 1.064 μm). The database was generated using three fundamentally different light-scattering approaches: a rigorous numerical method, a physical optics method, and a geometric optics approximation. ScIce-2025 provides critical support for developing advanced lidar data interpretation algorithms, enabling more accurate analysis of cirrus clouds in both ground-based and space-based lidar observations.