A Statistical Study of TEC Variations during the Passage of TCV Events

Abstract:

The field-aligned current system associated with traveling convection vortices (TCVs) is rather difficult to characterize due to its transient nature and occurrence at high latitudes on the dayside. Previous studies have demonstrated that for sufficiently large events, TEC variations can be observed during the passage of TCVs. We present the results of a statistical study using high latitude ground magnetometers and TEC receivers to investigate TEC variations during TCV events.