The monthly mean values of the geomagnetic field components at Kakioka are D: -6°-50.4′°, H: 30146nT, Z: 34971nT and F: 46171nT for January 1991.
Monthly average of the K-index daily sum is 12.2. indicates a slightly low level of geomagnetic activity during the month.
Notable geomagnetic events include 0 magnetic storms, 3 si, 2 bay, 1 sfe, 0 pi and 0 pc.
The international 5 quietest days are the 6,7,14,19,22th.
The international 5 most disturbed days are the 12,15,24,25,31th.
Plot of the geomagnetic hourly value for January 1991
Plot of the K-index daily total sum for 1991
| Date | K-index daily sum |
Geomagnetic activity |
Geomagnetic phenomena |
International 5 quietest days |
International 5 quietest days |
geomagnetic 1-minute value plot |
|---|---|---|---|---|---|---|
| 1 | 09 | calm | plot | |||
| 2 | 12 | moderately calm | plot | |||
| 3 | 15 | moderately calm | plot | |||
| 4 | 12 | moderately calm | plot | |||
| 5 | 10 | calm | plot | |||
| 6 | 04 | calm | ○ | plot | ||
| 7 | 01 | extremely calm | ○ | plot | ||
| 8 | 12 | moderately calm | plot | |||
| 9 | 10 | calm | plot | |||
| 10 | 11 | moderately calm | plot | |||
| 11 | 13 | moderately calm | plot | |||
| 12 | 19 | moderately disturbed | ○ | plot | ||
| 13 | 14 | moderately calm | plot | |||
| 14 | 04 | calm | ○ | plot | ||
| 15 | 16 | moderately calm | ○ | plot | ||
| 16 | 12 | moderately calm | plot | |||
| 17 | 18 | moderately disturbed | plot | |||
| 18 | 14 | moderately calm | plot | |||
| 19 | 09 | calm | ○ | plot | ||
| 20 | 05 | calm | plot | |||
| 21 | 05 | calm | plot | |||
| 22 | 07 | calm | ○ | plot | ||
| 23 | 13 | moderately calm | plot | |||
| 24 | 27 | disturbed | ○ | plot | ||
| 25 | 24 | disturbed | ○ | plot | ||
| 26 | 18 | moderately disturbed | plot | |||
| 27 | 11 | moderately calm | plot | |||
| 28 | 11 | moderately calm | plot | |||
| 29 | 09 | calm | plot | |||
| 30 | 08 | calm | plot | |||
| 31 | 25 | disturbed | ○ | plot |
*) Plot diagram opens in a separate window.
