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Geomagnetic activity in March 1978
Mean Ap16.5No. 270 of 1138
G1+ days9
G3+ days2
Max Ap7027 Mar 1978
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Mar 1978 | 5o | 33 | G1 |
| 2 Mar 1978 | 5+ | 27 | G1 |
| 8 Mar 1978 | 5+ | 20 | G1 |
| 15 Mar 1978 | 5- | 17 | G1 |
| 16 Mar 1978 | 5- | 24 | G1 |
| 17 Mar 1978 | 5- | 25 | G1 |
| 23 Mar 1978 | 5- | 15 | G1 |
| 26 Mar 1978 | 7- | 49 | G3 |
| 27 Mar 1978 | 7- | 70 | G3 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 1977 | 10.9 | 5 | 0 |
| March 1978 | 16.5 | 9 | 2 |
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 16.5 in March 1978, No. 270 of 1138 months since 1932; 9 days reached G1 or higher.