ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2014, Vol. 11, No. 2, pp. 264-274

Meteorological effects of ionospheric disturbances over Irkutsk according to vertical radio sounding data

M.A. Chernigovskaya1 , E.N. Sutyrina1 , K.G. Ratovsky1 
1 Institute of Solar-Terrestrial Physics SB RAS, Irkutsk, Russia
This paper deals with ionospheric disturbances caused by the processes in bottom layers of the lower and middle atmosphere (i.e., the so-called meteorological effects in the ionosphere). The ionospheric data were obtained from continuous measurements made at the vertical sounding ionosonde DPS-4 in Irkutsk in 2008-2010. The ionospheric disturbances referred to deviations of the maximum electron density NmF2 from the median values. We also used data from the NCEP/NCAR reanalysis project and the MLS Aura data on atmospheric temperature at heights of the stratosphere and upper mesosphere, obtained in 2008-2010. The analysis allowed us to reveal periods of large-scale wave motions in the stratosphere at a height of 10 mbar, mainly during cold seasons. These wave motions were associated with the jet streams at heights of the stratosphere, localized mainly at latitudes of 50-80 N. The waves propagated westward, generally in latitudinal direction; however, sometimes meridional direction of the wave propagation was observed. The large-scale wave motions in the stratosphere were compared with ionospheric disturbances over Irkutsk. The amplitude and occurrence time of ionospheric disturbances correlated well with velocity and energy characteristics of stratospheric jet streams.
Keywords: the lower and upper atmosphere, interaction between atmospheric layers, wave disturbances
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