LONG TERM VARIATION OF AIR TEMPERATURE IN THE SIRET CORRIDOR

This study, supported by the analysis of data from meteorological stations located in the Siret Corridor, confirms the trend of the increase in air temperature in Romania. This increase is statistically proven by the analysis of a series of observations of mean air temperature in Roman, where the increase has been 0.88°C in the last century. Using the Fourier analysis, we could highlight the influence of several factors in the evolution of air temperature in the area studied. Amongst these, the most obvious ones were the biannual oscillation (which translates into alternating between 2 – 3 warm years with 2 – 3 colder years), the North Atlantic oscillation (7 – 8 years cycle), as well as lunar and solar cycles.