Bovchaliuk V. Photometric and lidar studies of aerosols in the atmosphere over Ukraine

Single-scattering albedo and complex refractive index were analyzed to detect seasonal variations of microphysical parameters. Values and spectral changes of the single-scattering albedo and the complex refractive index correspond to a mixture of industrial aerosols, biomass burning, and dust. Scatter plots were constructed to determine aerosol types by seasons for their further classification. Lidar observations of aerosols altitude distribution were conducted for the first time. Retrieved aerosol parameters using GARRLiC algorithm agrees with the corresponding aerosol parameters retrieved using AERONET algorithm. The vertical distribution of the extinction coefficient was found. Direct radiation forcing (RF), calculated by both AERONET version and GAME algorithm, is negative. Thus, aerosols cause cooling of the atmosphere (troposphere), although during the winter months this value becomes positive. RF vertical distribution caused by aerosols is found based on lidar observations. Obtained results can be used in various fields of science, such as forecasting the meteorological conditions of pollution, to precise RF value of the earth's atmosphere in climatology.