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Geomagnetic activity in March 2004
Mean Ap14.1No. 425 of 1138
G1+ days8
G3+ days0
Max Ap4510 Mar 2004
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Mar 2004 | 5- | 21 | G1 |
| 9 Mar 2004 | 6- | 28 | G2 |
| 10 Mar 2004 | 6+ | 45 | G2 |
| 11 Mar 2004 | 6+ | 40 | G2 |
| 12 Mar 2004 | 6- | 28 | G2 |
| 26 Mar 2004 | 5- | 17 | G1 |
| 27 Mar 2004 | 5+ | 22 | G1 |
| 28 Mar 2004 | 5+ | 21 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 2003 | 21.2 | 16 | 0 |
| March 2004 | 14.1 | 8 | 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 14.1 in March 2004, No. 425 of 1138 months since 1932; 8 days reached G1 or higher.