Temporal and Spatial Variability of Air Temperatures in Estonia during 1756–2014

Figure 11

A verified -test of the hypothesis of the air temperature change in Tallinn and Tartu. Significance level 0.05. The zero hypothesis (average temperature has not risen) is valid in the critical area of the parameter (below the dashed line). Comparison periods of the average temperatures: Tartu: 1901–2014 in relation to the period of 1821–1900; Tallinn I: the average temperatures of the period of 1801–1900 in relation to the period of 1756–1800; Tallinn II: the average temperatures of the period of 1901–2014 in relation to the period of 1801–1900.