Ionospheric Event 22-01-2012

Contact: iono@oma.be

An interplanetary shock wave was detected by ACE the 22/01/2012 at 05:15 UTC (source: www.sidc.be). The Earth's ionosphere above Europe was disturbed from the 22/01/2012 at 06:00 UTC to the 23/01/2012 at 05:30 UTC.


Figure 1: VTEC time series


Figure 2: Map of the 3 locations


Figure 1 shows the time evolution of the Vertical Total Electron Content (VTEC) time series (in red) extracted from the near-real time 15-min VTEC maps at 3 different locations (see Figure 2):

a) Northern part of the map (top)
b) Brussels (middle)
c) Southern part of the map (bottom)

Also shown, the model based on the median from the 15 previous days (in grey), and the IRI 2011 [Bilitza et al. 2011] model (in blue).


More informations:

  • the 15 min VTEC maps during this event : here
  • comparison with the median of the last 15 days :here
  • about the CME : www.sidc.be