The interannual and intraannual variability of repeatability, intensity, duration, and pressure in the centre of baric formations (cyclones and anticyclones) was investigated for the Western Siberia during 1976-2006 years with the use of NCEP/DOE AMIP-II data reanalysis and the subjective analysis of synoptic maps. The analysis has shown that reanalysis qualitative reproduce the temporal variability of characteristics of the baric formations. The number of cyclones and anticyclones revealed from the analysis of synoptic maps is 1.2 times higher than the number of formations according to the reanalysis. The average intensity of baric formations calculated from the synoptic maps is 2 times lower than the intensity according to the reanalysis. The average long-term duration of cyclone (anticyclone) influence on the territory obtained from both sources is practically identical.
cyclones; anticyclones; Western Siberia; reanalysis; synoptic maps