Abstract:The influence of solar wind‐magnetosphere interaction on the atmospheric electric field is investigated in connection with the two severe geomagnetic storms during 24th solar cycle. The observation was carried out at Vostok (78°27′S, 106°52′E), Antarctica, during 17–18 March 2013 and 17–18 March 2015. Two consecutive substorms were observed at Vostok during the main phase of geomagnetic storms, where the disturbed ionospheric current is antisunward in the morning sector (~04:00–10:00 UT) and sunward in the noo… Show more
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