Abstract
For the assessment of expected climate change and its possible impacts it is necessary to evaluate changes in meteorological characteristics relevant to sectors of interest. Growing seasons are defined as periods with daily mean air temperature above a specific threshold.
They are important for evaluation of conditions relevant to agriculture as well as natural ecosystems. The contribution presented is focused on analysis of duration of seasons with daily mean air temperature above 5 °C, 10 °C and 15 °C in the period of 1951-2010.
Attention is paid to differences between 1951-1980 and 1981-2010 periods. Several methods of calculation of the duration of growing seasons under consideration are compared in the first part of the study.
Method of linear interpolation of long-term monthly mean values is then used in the second part of the study. The results showed prolongation of growing seasons over most of the area of the Czech Republic.
The biggest changes are observed at lower and middle altitudes.