Extremes in the Concentrations of CCN at Mt. Musala and Synoptic Classifications

According to the Sixth Assessment Report of Intergovernmental Panel on Climate Change aerosols are having generally a negative but decreasing in magnitude contribution effective radiative forcing (ERF) and, therefore, they act against global warming. Leading role this ERF balance play involved aerosol-cloud interaction, named cloud condensation nuclei (CCN). In present article we study distribution CCN as monitored by Basic Environmental Observatory Musala 2016 and their performance different atmospheric circulations. As first step, determine days with extrema concentration sort them separately for minima maxima using circulation scheme Jenkinson–Collison Types that comprises 26 types Thus most frequent occurring studied period. Consequently, each these obtain backward trajectories Hybrid Single-particle Lagrangian Integrated Trajectory model. This permits match prevailing origin air masses, other hand, respect height trajectory.