Ionospheric Event 2014-02-19

Contact: iono@gnss.be

SUMMARY OF THE EVENT: Abnormal variations were observed in the ionospheric TEC above Europe the 19th of February. According to the SIDC, these disturbances are linked with a shock detected by ACE at 3:10 UTC related to an eruption on the 16th and probably on the 14th of February. The ionospheric activity remained also unsettled during the next day.

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
  • about the origin of the ionospheric disturbances: www.sidc.be