Research of synoptic processes in the south-east of the Russian plain during different climatic periods

Abstract

This article examines the annual and seasonal (winter and summer) changes in the frequency of occurrence of the main types of synoptic processes in the Lower Volga region in two natural climatic periods of the state of the earth climatic system - the stabilization period and the second wave of global warming. The frequency of occurrence of some types of synoptic processes revealed both climatic and seasonal differences. In the second wave of global warming, in comparison with the stabilization period, the frequency of cyclone impact on the Lower Volga region developed on the Arctic front and the number of Arctic anticyclones increase, and the frequency of polar-front cyclones and cases of the impact of the western periphery of the winter Asian anticyclone decreases. Seasonal differences in the frequency of occurrence were revealed in the Arctic anticyclones. During the second wave of global warming, these anticyclones penetrate into the Lower Volga region in summer more often than in winter. It is concluded that the contribution of the transformation factor to the observed warming increases and the role of summer seasons in the observed climatic changes increases, which is not typical for processes in the earth climatic system. It is indicated that obtained result is of great climatological significance and will serve the further development of the physical theory of climate.