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The snow cover is a climatic element, which exerts significant influence on the energy balance and the water circle of the Earth. The exact description of its characteristics is important in each meteorological, climate, hydrological and surface models and especially when assessing the snow water equivalent (SWE) and the threats which it poses. Snow accumulated in the mountain regions from early autumn to late spring is an important water resource, feeding lakes, rivers, reservoirs, groundwater and hydro-electric ...

Snow blizzards and snow drifts have recently proven as major winter threat for the road traffic, communications and social life in northeast Bulgaria. The geographical location of these regions with respect to the tracks of the winter Mediterranean cyclones and cold advections from north and northeast makes them indeed prone to this risk, but one would like to know if there is a significant rise in their number and severity. The main goal of the current study is exactly the investigation of the contemporary tenden...