Recent ozone investigations over Bulgaria by remote sensing: Ground-based and satellite data

Ozone behaviour in the planetary boundary layer (PBL) has been analyzed by using data obtained with remote-sensing technique - ground-based aerosol LIDAR (LIght Detection And Ranging), which give information about the evolution of the PBL. The surface ozone concentrations have been measured with a fast and sensitive ozone monitor, based on chemiluminescent method for ozone detection. The investigation shows that the simultaneous observations of the surface ozone and of the boundary layer dynamics provide the opportunity accurately to establish relation between the BL structure and the features of ozone variations. In particular, the influence of the residual layer on the ozone values near the ground is demonstrated.