Aurora & Space WeatherHome › Geomagnetic history › 1997
Geomagnetic activity in August 1997
Mean Ap6.9No. 1008 of 1138
G1+ days2
G3+ days0
Max Ap213 Aug 1997
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 3 Aug 1997 | 5o | 21 | G1 |
| 14 Aug 1997 | 5- | 16 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| August 1996 | 9.1 | 2 | 0 |
| August 1997 | 6.9 | 2 | 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 6.9 in August 1997, No. 1008 of 1138 months since 1932; 2 days reached G1 or higher.