Articles | Volume 33, issue 6
Ann. Geophys., 33, 657–670, 2015
https://doi.org/10.5194/angeo-33-657-2015
Ann. Geophys., 33, 657–670, 2015
https://doi.org/10.5194/angeo-33-657-2015

Regular paper 02 Jun 2015

Regular paper | 02 Jun 2015

GPS phase scintillation at high latitudes during geomagnetic storms of 7–17 March 2012 – Part 2: Interhemispheric comparison

P. Prikryl et al.

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Short summary
A series of interplanetary coronal mass ejections in the period 7–17 March 2012 caused geomagnetic storms that strongly affected the high-latitude ionosphere in the Northern and Southern Hemisphere. Interhemispheric comparison of GPS phase scintillation reveals commonalities as well as asymmetries, as a consequence of the coupling between the solar wind and magnetosphere. The interhemispheric asymmetries are primarily caused by the dawn-dusk component of the interplanetary magnetic field.