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To study the distribution and repetition of droughts, an ar chive of droughts has been created in eastern Georgia for 19 meteorol ogical stations for the vegetation period between 1961 and 2008. It has been eval uated geographic and meteorological conditions of droughts formation: conditions of humidity, temperature background, hydrothermal regime of soils. It has been studied the territorial distribution and probability of dry months, repetition of drought s within a season and a month, severe and ultra-severe dr...

During the last decades an increase of the number of extreme natural events has been observed all over the world. Drought in Southeastern Europe is among the extreme events, which might have significant negativ e impacts on the socio-economic sectors. Drought in Bulgaria has been in details studied by many researchers, but being a problem of vital importance, is continuously considered with enhanced attention. 50- years time series of precipitation, collected from 20 weather stations located at the Maritsa and Tun...