Statistics of the Meteorological Conditions Favourable to Propagation According to the Three Definitions

摘要

Frequencies of the meteorological condition favourable to propagation according to the definitions of CONCAWE, ISO and NMPB were compared. Territories in Poland in different climate zones were chosen, in day and night time. Polar graphs of the conditions favourable to propagation show a lot of variability caused by the differences in the definitions. Variability caused by these differences is stronger than the one coming from the climate and the direction of propagation influences.