Contact: iono@oma.be
Event: 2015-02-23
SUMMARY OF THE EVENT: The ionosphere was disturbed during the daylight of the 23/02/2015 with TEC increase of +60% wrt to the median of the 15 previous days. Small disturbances (+50% TEC) also occurred in the north during the night. As a consequence, the next day 24/02/2015, the TEC was lessened. These disturbances can be linked with the geomagnetic activity which reached active levels (K at Dourbes = 4, with Kp reaching 5) due to the fast solar wind from a coronal hole (source: SIDC).
 Figure 1: VTEC Time Series |
 Figure 2: VTEC extracting locations |
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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:
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