Effects of solar flares on the ionosphere as shown by the dynamics of ionograms recorded in Europe and South Africa

Barta, Veronika; Sátori, Gabriella; Berényi, Kitti Alexandra; Kis, Árpád; Williams, Earle

doi:https://doi.org/10.5194/angeo-37-747-2019

Articles | Volume 37, issue 4

https://doi.org/10.5194/angeo-37-747-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Vertical coupling in the atmosphere–ionosphere system

https://doi.org/10.5194/angeo-37-747-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 37, issue 4

Regular paper

|

23 Aug 2019

Regular paper |

| 23 Aug 2019

Effects of solar flares on the ionosphere as shown by the dynamics of ionograms recorded in Europe and South Africa

Veronika Barta, Gabriella Sátori, Kitti Alexandra Berényi, Árpád Kis, and Earle Williams

Data sets

The X-ray data from the GOES 11 and 12 satellites NOAA https://satdat.ngdc.noaa.gov/sem/goes/data/avg/

Short summary

The solar flare effects on ionosphere at midlatitudes and low latitudes were investigated with the systematic analysis of ionospheric parameters derived from ionograms (total radio fade-out, f_min, df_min: deviation from the reference days). The duration of the total fade-out varied with the solar zenith angle. Furthermore, a solar-zenith-angle-dependent enhancement of the f_min and df_min parameters was detected but the observed values also depended on the flare intensity.