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Geomagnetic activity in August 1971
Mean Ap8.8No. 867 of 1138
G1+ days3
G3+ days0
Max Ap3231 Aug 1971
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 Aug 1971 | 5- | 17 | G1 |
| 17 Aug 1971 | 5+ | 11 | G1 |
| 31 Aug 1971 | 5o | 32 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| August 1970 | 13.4 | 6 | 2 |
| August 1971 | 8.8 | 3 | 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 8.8 in August 1971, No. 867 of 1138 months since 1932; 3 days reached G1 or higher.