Current Trends of Climate Changes in Southern Arid Regions of West Siberia

N. N. Bezuglova, G. S. Zinchenko, and A. V. Puzanov

The regional climate changes in the arid regions in the south of West Siberia for the period of 1936–2010 are estimated by means of the statistical analysis of the series of climatic parameters and complex hydrothermal indices. Revealed is the close correlation between the above characteristics. The periodicity of variations of some climatic parameters and corresponding indices amounting to 8–12 years on average is revealed using the Welch’s method of spectral analysis.