The extension of the Hybrid End-To-End Aerosol Classification (HETEAC) model with respect to stratospheric targets is presented. The methodology follows the HETEAC approach, i.e., a suitable set of basic feature types is defined to allow for scattering calculations. The most appropriate microphysical representation is selected based on the agreement between optical properties derived from scattering calculations and ground-based lidar observations. The extended HETEAC model (2.0), considers stratospheric features such as sulfate, volcanic ash, and smoke particles and also polar stratospheric clouds (PSCs). HETEAC 2.0 ensures consistency with the CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations) approach, which is of great importance for the harmonization of long-term satellite records.
Floutsi et al. (Thu,) studied this question.