Ionospheric Event 2012-07-08

Contact: iono@gnss.be

SUMMARY OF THE EVENT: Geomagnetic activity has enhanced on July 8 due to the X-flare X1.1 of July 7 (source: www.sidc.be). As a consequence the Earth ionosphere above Europe was disturbed : 1- increase of TEC on July 8, 2- increase of TEC in the Southern region of Europe on July 9, 3- decrease of TEC on July 10.

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