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Geomagnetic activity in March 1948
Mean Ap17.4No. 233 of 1138
G1+ days8
G3+ days1
Max Ap14015 Mar 1948
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Mar 1948 | 6- | 41 | G2 |
| 2 Mar 1948 | 5+ | 30 | G1 |
| 3 Mar 1948 | 5+ | 24 | G1 |
| 11 Mar 1948 | 5- | 8 | G1 |
| 12 Mar 1948 | 5- | 23 | G1 |
| 13 Mar 1948 | 5+ | 39 | G1 |
| 14 Mar 1948 | 5+ | 40 | G1 |
| 15 Mar 1948 | 8+ | 140 | G4 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 1947 | 32.2 | 19 | 7 |
| March 1948 | 17.4 | 8 | 1 |
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 17.4 in March 1948, No. 233 of 1138 months since 1932; 8 days reached G1 or higher.