Statistical analysis of the daily wind speed in Tbilisi in 1971-2016

Abstract

The results of the detailed statistical analysis of the daily mean and max wind speed for Tbilisi from January 1, 1971 to December 31, 2016 are presented. In the studied period of time, the range of changes in the average daily wind speed was 0 - 14.9 m/s, and the maximum - up to 41.0 m/s. The repeatability of the average daily and maximum wind speed in Tbilisi on the Beaufort Wind Scale was obtained. In particular, it was found that the repeatability of the maximum wind speed covers the entire Beaufort scale. At the same time, the scale range of 8 and more (17.2-20.7 m/s, gale and above, the onset of destructive processes in the environment and their intensification) accounts for about 6.5% of cases (about 24 days a year). During the entire period of research with hurricane wind 3 cases were recorded (Beaufort scale range - 12, hurricane, wind speed >32.6 m/s, devastating destruction). For separate months and according to annual data, correlation and regression relationships between daily and average monthly values of the mean and max wind speed were studied.