Ionospheric Event 2012-06-17

Contact: iono@gnss.be

SUMMARY OF THE EVENT: A double CME hit Earth's magnetic field on June 16th (source: www.sidc.be). As a consequence the Earth's ionosphere above Europe was mainly disturbed between 17/06/2012 05:30 UTC and 18/06/2012 17:00 UTC. Indeed, a significant decrease of the Total Electron Content (difference maximum of 24 TECu with respect to the 15 previous days the 17/06/2012 at 15:45UTC) was observed above Europe.

VTEC Time Series

Figure 1: VTEC Time Series

VTEC point locations

Figure 2: VTEC extracting locations


Figure 1 shows the time evolution of the Vertical Total Electron Content (VTEC) (in red) extracted from the near-real time VTEC maps at 3 different latitudes (Figure 2): a) Northern part (top), b) Brussels (middle) and c) Southern part (bottom). Also shown, the model based on the median from the 15 previous days (in grey).

About this event, see also:

  • VTEC maps during this event: here
  • Comparisons with the median of the last 15 days: here