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Geomagnetic activity in March 2011
Mean Ap8.2No. 918 of 1138
G1+ days4
G3+ days0
Max Ap3711 Mar 2011
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Mar 2011 | 5+ | 27 | G1 |
| 10 Mar 2011 | 5- | 19 | G1 |
| 11 Mar 2011 | 6- | 37 | G2 |
| 12 Mar 2011 | 5- | 15 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 2010 | 4.7 | 0 | 0 |
| March 2011 | 8.2 | 4 | 0 |
Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.
About this page
Mean Ap 8.2 in March 2011, No. 918 of 1138 months since 1932; 4 days reached G1 or higher.