| Abstract [eng] |
Aerosols due to their ability to scatter and absorb light play a significant role in climate radiative budged. The largest uncertainty of the Earth’s climate system radiative forcing assessment are assigned to aerosols and clouds. This uncertainty is a result of complex chemical and physical processes in the atmosphere, which remain not fully understood to this day. In order to investigate aerosols impact on climate it is crucial to broaden the understanding of black carbon and brown carbon sources, their aging and oxygenating processes together with their impact on atmospheric radiative budged. This thesis consists of identification of main sources of organic aerosol, assessment of aerosol main physical and chemical properties and their importance to the atmospheric radiative balance. The first part of the thesis is a literature review. The description of used instrumentation and methods are presented in the second part. The third part consists of results: identification of main sources of organic aerosol in urban, rural and marine environments, assessment of the impact of different aerosol sources and parameters on single scattering albedo and evaluation of the importance of fog, smog and grass burning events for atmospheric radiative balance. |
