The monthly mean values of the geomagnetic field components at Kakioka are D: -7°-0.5′°, H: 30067nT, Z: 35290nT and F: 46361nT for February 1997.
Monthly average of the K-index daily sum is 16.1. indicates a slightly high level of geomagnetic activity during the month.
Notable geomagnetic events include 2 magnetic storms, 2 si, 2 bay, 1 sfe, 0 pi and 0 pc.
The international 5 quietest days are the 4,7,13,19,20th.
The international 5 most disturbed days are the 9,10,11,27,28th.
Plot of the geomagnetic hourly value for February 1997
Plot of the K-index daily total sum for 1997
Details of the geomagnetic storms in February 1997
| Date | K-index daily sum |
Geomagnetic activity |
Geomagnetic phenomena |
International 5 quietest days |
International 5 quietest days |
geomagnetic 1-minute value plot |
|---|---|---|---|---|---|---|
| 1 | 10 | calm | plot | |||
| 2 | 16 | moderately calm | plot | |||
| 3 | 10 | calm | plot | |||
| 4 | 11 | moderately calm | ○ | plot | ||
| 5 | 11 | moderately calm | plot | |||
| 6 | 14 | moderately calm | plot | |||
| 7 | 09 | calm | ○ | plot | ||
| 8 | 24 | disturbed | plot | |||
| 9 | 22 | moderately disturbed | ○ | plot | ||
| 10 | 27 | disturbed | ○ | plot | ||
| 11 | 31 | disturbed | ○ | plot | ||
| 12 | 10 | calm | plot | |||
| 13 | 12 | moderately calm | ○ | plot | ||
| 14 | 09 | calm | plot | |||
| 15 | 10 | calm | plot | |||
| 16 | 16 | moderately calm | plot | |||
| 17 | 21 | moderately disturbed | plot | |||
| 18 | 14 | moderately calm | plot | |||
| 19 | 06 | calm | ○ | plot | ||
| 20 | 10 | calm | ○ | plot | ||
| 21 | 17 | moderately disturbed | plot | |||
| 22 | 18 | moderately disturbed | plot | |||
| 23 | 19 | moderately disturbed | plot | |||
| 24 | 18 | moderately disturbed | plot | |||
| 25 | 09 | calm | plot | |||
| 26 | 23 | disturbed | plot | |||
| 27 | 26 | disturbed | ○ | plot | ||
| 28 | 28 | disturbed | ○ | plot |
*) Plot diagram opens in a separate window.
