Fig. 5From: The nighttime ionospheric response and occurrence of equatorial plasma irregularities during geomagnetic storms: a case studyThe BeiDou GEO (C01-04) derived TEC (red) at the station SHEZ during geomagnetic storms on a 6–11 September 2017 and b 24–29 August 2018. The quiet-time references are represented in black lines. The grey shadow area represents the night side between 18:00–06:00 LTBack to article page