ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2010, Vol. 7, No. 3, pp. 53-61

The quasi-biennial oscillation in structure of a radio thermal field over Atlantic ocean according to microwave satellite monitoring

G.R. Khairullina , N.M. Astafieva 
Space Research Institute of RAS (IKI RAS), 117997 Moscow, Profsoyuznaya 84/32
The quasi-biennial oscillation (QBO) - most significant of high−frequency quasi−regular component of interannual
variability of an atmosphere of the Earth - is the major stratospheric process. The signals generated in an equatorial
stratosphere propagate upwards, downwards and along a meridian that involves in interaction troposphere, a stratosphere
and mesosphere in global scales. Most researches are devoted to studying of QBO zone wind in an equatorial
stratosphere (known as the "classical" or "pure" QBO). The present study investigates quasi−periodic oscillations in
structure of a radio thermal field of troposphere. There are used the data of microwave satellite monitoring - global
radio thermal fields of the Earth from electronic collection GLOBAL−Field during 1996−2007 on the frequencies
containing the information about a moisture and water integral content distribution in a troposphere. The structure of
radio thermal fields over Atlantic ocean is studied by using methods of the latitude−time diagrams and the wavelet
analysis. It is shown that the quasi-biennial oscillations inherent in the general circulation of atmosphere in an equatorial
stratosphere are characteristic for a radio thermal field of the Earth (and for the troposphere) not only on equator
but also at other latitudes - out of tropics.
Keywords: general circulation of atmosphere, quasi-biennial oscillation, microwave satellite monitoring, methodic of latitude−time diagram, wavelet analysis
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