The monthly mean values of the geomagnetic field components at Kakioka are D: -650.4, H: 30140nT, Z: 34966nT and F: 46163nT for November 1990.
Monthly average of the K-index daily sum is 12.1. indicates a slightly low level of geomagnetic activity during the month.
Notable geomagnetic events include 2 magnetic storms, 0 si, 4 bay, 1 sfe, 0 pi and 0 pc.
The international 5 quietest days are the 4,5,6,14,24th.
The international 5 most disturbed days are the 16,17,18,27,28th.
Plot of the geomagnetic hourly value for November 1990
Plot of the K-index daily total sum for 1990
Details of the geomagnetic storms in November 1990
| Date | K-index daily sum |
Geomagnetic activity |
Geomagnetic phenomena |
International 5 quietest days |
International 5 quietest days |
geomagnetic 1-minute value plot |
|---|---|---|---|---|---|---|
| 1 | 12 | moderately calm | plot | |||
| 2 | 14 | moderately calm | plot | |||
| 3 | 11 | moderately calm | plot | |||
| 4 | 03 | extremely calm | plot | |||
| 5 | 01 | extremely calm | plot | |||
| 6 | 02 | extremely calm | plot | |||
| 7 | 11 | moderately calm | plot | |||
| 8 | 14 | moderately calm | plot | |||
| 9 | 22 | moderately disturbed | plot | |||
| 10 | 21 | moderately disturbed | bay | plot | ||
| 11 | 17 | moderately disturbed | bay | plot | ||
| 12 | 11 | moderately calm | plot | |||
| 13 | 08 | calm | sfe | plot | ||
| 14 | 00 | extremely calm | plot | |||
| 15 | 05 | calm | plot | |||
| 16 | 28 | disturbed | storm | plot | ||
| 17 | 22 | moderately disturbed | bay | plot | ||
| 18 | 22 | moderately disturbed | plot | |||
| 19 | 15 | moderately calm | plot | |||
| 20 | 11 | moderately calm | plot | |||
| 21 | 15 | moderately calm | plot | |||
| 22 | 01 | extremely calm | plot | |||
| 23 | 08 | calm | plot | |||
| 24 | 00 | extremely calm | plot | |||
| 25 | 08 | calm | plot | |||
| 26 | 16 | moderately calm | storm | plot | ||
| 27 | 30 | disturbed | plot | |||
| 28 | 16 | moderately calm | plot | |||
| 29 | 07 | calm | plot | |||
| 30 | 11 | moderately calm | plot |
*) Plot diagram opens in a separate window.
Copyright (c) Kakioka Magnetic Observatory, Japan Meteorological Agency. All rights reserved.
