A.S. Besprozvannaya

TL;DR: The Sazonov index characterising the intensity of meridional circulation has been used to study the influence of short-term changes in solar activity on baric (pressure) field perturbations in the stratosphere as mentioned in this paper.

TL;DR: In this paper, the authors used the polar diagrams of the distribution of the two different kinds of high-latitude sporadic E -ionization to study the behavior of the Es-ionization under the quiet and disturbed geomagnetic conditions for the periods of the maximum and minimum solar activity.

TL;DR: In this article, a study was made of the dynamics of the main ionospheric trough in the northern and southern hemispheres using data of ion density winter measurements on the Kosmos-900 satellite from 1977 to 1979.

TL;DR: In this article, the authors used the data of the Northern Hemisphere network of ionospheric stations (φL = 40-70°) for the analysis of the longitudinal variations of the electron concentration at the altitude of the F2 layer maximum.

TL;DR: In this article, the distribution of anomalous ionization in the lower ionosphere during the expansion phase of magnetospheric substorms was examined on the basis of ionospheric and magnetic data along the meridian 90°E for more than 70 sub-storms in the winter of 1982-1983.