Climate Trends in Barometric Circulation Regime and the Thermal State in the Northern Hemisphere and its Individual Regions

Y.P. Perevedentsev, K.M. Shantalinskiy and T.R. Auhadeev

Kazan (Volga Region) Federal University,18 Kremlin str., Kazan, 420008, Russian Federation

DOI : http://dx.doi.org/10.13005/bbra/1461

ABSTRACT: The space-time variability of atmospheric pressure fields, the air temperature and wind velocity in the troposphere of the Northern Hemisphere within the period from 1948 to 2013 has been described. A delay of air temperature low-frequency component against the atmosphere zonal circulation variations in the 30-70° N latitude zones in winter time has been revealed. The share of the wind velocity component in the temperature variation is 60%. As an example, the air temperature response to the impact of a number of circulation systems in the Volga region has been considered.

KEYWORDS: Macro-circulation system; zonal wind; circulation indexes; Correlation coefficient; air temperature; atmospheric pressure

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