Comparison of the Mean Max Annual, Seasonal and Monthly Air Temperature Variability in Tbilisi and Shovi in 1956-2022

Abstract

Some results of comparative analysis of the average maximum annual, seasonal and monthly air temperature variability in Tbilisi and Shovi during 1956-2022 against the background of global warming are presented.. The statistical characteristics of the mean max annual, seasonal and monthly air temperature in the period 1956-2022 (T), 1956-1985 (T₁) and 1993-2022 (T₂) for each point were studied. It is shown that compared to Tbilisi, climate warming in Shovi is much more significant. For example, the increase in the mean annual max air temperature in Tbilisi in 1993-2022 compared to 1956-1885 was 0.8 ˚C, while in Shovi it was 1.9 ˚C. The situation is similar for the warm and cold half of the year. The maximum increase in the mean max monthly air temperature at both points was observed in August. At the same time, in Tbilisi - 1.9 ˚C, and in Shovi - 3.7 ˚C. It is shown that the trend of the mean max annual and seasonal air temperature in 1956-2022 in Tbilisi is described by the second power polynomial, and in Shovi - by the third power polynomial. Using these equations, the average annual rate of increase in air temperature at both points was calculated. In particular, it was found that in 2011-2020 this speed in Shovi is three times higher than in Tbilisi.