Abstract:
Based on the series of surface air temperature (average, absolute maxima, absolute minima) for 1961-2018, obtained from instrumental data from the Kislovodsk station, an analysis of changes in seasonal and annual temperatures is carried out. We obtained averaged values in the base (1961-1990, normal) and modern (1991-2018) periods, the results of the t-test for determining the statistical equality/inequality of temperatures for two sub-periods, as well as characteristics of the distribution shape (asymmetry, kurtosis), the rate of temperature change with the criterion of statistical significance (F-test), the value of the Hurst exponent H for determining the stability of the series. Based on the results of statistical and fractal analysis, it can be concluded about a steady increase in temperatures (with the selection of summer averages, maximum and minimum) in the foothill zone of southern Russia (Kislovodsk).
Keywords:southern Russia, foothill climatic zone, seasonal air temperature, statistics, distribution fields, trend stability.