Current status of the temperature and humidity regime of the troposphere in the Siberian sector in different circulation periods

The paper studies the long-term dynamics of air temperature and relative humidity anomaly indices in surface layer at different levels troposphere Siberia neighboring regions (European Far Eastern sectors). As main cause observed variations climatic parameters we considered circulation factors, which were taken into account using typification macrocirculation processes proposed by B.L. Dzerdzeevsky. Seasonal differences revealed distribution area occupied anomalies signs annual monthly mean humidity, are most pronounced during periods increased duration meridional northern Siberian sector Northern Hemisphere as a whole. highest rates change regime over recent decades have been level isobaric AT–700 hPa (3 km), affects advective-dynamic factors cyclo- frontogenesis, well cloud formation precipitation. In general, an increase heat content lower middle decrease moisture near tropopause can be accompanied amount potential energy convective instability reserves lead to climate risks sector.