Vol. 32, issue 12, article # 2

Podnebesnykh N.V., Ippolitov I.I. The relationship of climatic characteristics with anticyclonic activity in the winter period over Siberia in 1976–2011. // Optika Atmosfery i Okeana. 2019. V. 32. No. 12. P. 965–970 [in Russian].
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Abstract:

According to data from 163 meteorological stations over the territory of Siberia (50°–70° N; 60°–110° E) the air temperature, surface pressure, and cloud cover during the winter period (December–February) were calculated over 1976–2011. Using surface synoptic charts, time series of winter anticyclone characteristics, such as total number and pressure centers, were derived. Two time intervals: 1976–1990 and 1991–2011 were found in variations in climate and anticyclone activity characteristics. Over the first period, temperature and cloud amount increase, and surface pressure falls, the number of anticyclones decreases, and their intensification occurs, i.e., the pressure increases in their centers. Over the second period, the tendencies are opposite. The correlation analysis between the climate variables and anticyclonic activity characteristics allowed us to consistently describe the impact of anticyclones on the surface pressure and cloudiness.

Keywords:

surface temperature, surface pressure, cloudiness, anticyclonic activity, the territory of Siberia

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