Aurora & Space WeatherHome › Geomagnetic history › 2005
Geomagnetic activity in March 2005
Mean Ap11.6No. 612 of 1138
G1+ days6
G3+ days0
Max Ap407 Mar 2005
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 6 Mar 2005 | 5+ | 37 | G1 |
| 7 Mar 2005 | 6- | 40 | G2 |
| 8 Mar 2005 | 5+ | 29 | G1 |
| 9 Mar 2005 | 5o | 25 | G1 |
| 14 Mar 2005 | 5- | 19 | G1 |
| 19 Mar 2005 | 5- | 11 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 2004 | 14.1 | 8 | 0 |
| March 2005 | 11.6 | 6 | 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 11.6 in March 2005, No. 612 of 1138 months since 1932; 6 days reached G1 or higher.