The observed NmF2 and NmE variations were analyzed for the periods of positive and negative quiet-time F2-layer disturbances (Q-disturbances) observed in the midlatitude daytime F2-layer to specify the mechanism of their origin. The noontime δNmF2 and δNmE deviations demonstrate a synchronous type of variation which can be explained by vertical gas motion in the thermosphere. This neutral gas m...

[1] A retrospective study of the North-South asymmetry (NSA) during the solstices is made using the different geospace parameters in the North and South magnetic hemispheres. The NSA features are investigated using Total Electron Content, TEC, and Global Electron Content, GEC, produced from global ionospheric maps, GIM-TEC for 1999-2013, the Ionospheric Electron Content, IEC, measured by Topex-...

In this paper, a statistical analysis of the diurnal, seasonal and solar cycle variation in TEC longitudinal difference midlatitudes East Asia is presented using CODE GIMs data 2015–2019. Moreover, empirical neutral wind model HWM-14 geomagnetic field IGRF-2020 were employed to analyze influence configuration-neutral mechanism on difference, F2 layer peak electron density (NmF2) from Constellat...