Balabukh V. Features of weather processes which predetermine dangerous and elemental precipitations in a warm period on territory of Ukraine

Dissertation on gaining of scientific degree the Candidate of Geographical Sciences, speciality 11.00.09 Meteorology, Climatology, Agricultural Meteorology - the Geographical faculty of the Tarasa Shevchenko Kyiv National University, Kyiv, 2007. For the first time is developed the method of objective authentication of the baric systems (OIBS) which takes into account thermodynamics individuality of air mass. On the basis of OIBS is specified the structure of the baric field of the lower troposphere in a warm period. There are received averages for each month, and the warm period as whole, sizes of repeatability of the baric formations, air masses and frontal zones in Ukraine. For each identified element of baric fields are received average values of steam and specific kinetic energy in the lower troposphere. It is certain, that periodicity of repeatability of catastrophic precipitations is similar to periodicity of investigated characteristics. The lead analysis of annual variability of energy and specific humidity of cyclones which took place in Ukraine during when on its territory the increase in repeatability of cases of dangerous and spontaneous quantity of precipitations has shown, that during this period their specific humidity increased, and kinetic energy decreased. There was observed the increase in repeatability of baric formations of the raised pressure and reduction of repeatability of baric formations of the lowered pressure.