Correlations of latitudinal dynamics of atmospheric moisture content with quasi-biennial oscillations of zonal wind in the equatorial stratosphere and solar activity over the north-east of Eurasia during 1979-2015
M.S. Vasiliev, S.V. Nikolashkin
Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy of the Siberian Branch of the RAS, 677980, Yakutsk, 31, Lenina ave.
Keywords: влагосодержание атмосферы, солнечный фотометр, солнечная активность, квазидвухлетние колебания, тропосфера, стратосфера, реанализ, moisture content of the atmosphere, sun-sky photometer, solar activity, quasi-biennial oscillation, troposphere, stratosphere, reanalysis
Abstract
Correlations of latitudinal dynamics of the atmospheric moisture content (W) with quasi-biennial oscillations (QBO) of zonal wind in the equatorial stratosphere and solar activity over the north-east of Eurasia during 1979-2015 are analyzed with the use of data of AERONET sun-sky photometers (st. Yakutsk, st. Tomsk, st. Irkutsk, and st. Dalanzadgad) and ERA-Interim reanalysis, based on the regular meteorological observations, aerological and satellite information. Reliably significant correlation is found between the mean annual values of W and QBO during its eastern phase. At the same time, variations in W, depending on latitude, reveal the fundamental cycles of solar activity (Schwabe, Hale, and Bruckner).
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