The monthly mean values of the geomagnetic field components at Kakioka are D: -73.7, H: 29983nT, Z: 35370nT and F: 46368nT for July 2004.
Monthly average of the K-index daily sum is 16.2. indicates a slightly high level of geomagnetic activity during the month.
Notable geomagnetic events include 4 magnetic storms, 2 si, 0 bay, 10 sfe, 6 pi and 0 pc.
The international 5 quietest days are the 6,7,8,9,21th.
The international 5 most disturbed days are the 23,24,25,26,27th.
Plot of the geomagnetic hourly value for July 2004
Plot of the K-index daily total sum for 2004
Details of the geomagnetic storms in July 2004
| Date | K-index daily sum |
Geomagnetic activity |
Geomagnetic phenomena |
International 5 quietest days |
International 5 quietest days |
geomagnetic 1-minute value plot |
|---|---|---|---|---|---|---|
| 1 | 18 | moderately disturbed | plot | |||
| 2 | 13 | moderately calm | pi | plot | ||
| 3 | 09 | calm | plot | |||
| 4 | 10 | calm | plot | |||
| 5 | 12 | moderately calm | plot | |||
| 6 | 09 | calm | plot | |||
| 7 | 05 | calm | pi | plot | ||
| 8 | 03 | extremely calm | plot | |||
| 9 | 07 | calm | plot | |||
| 10 | 10 | calm | plot | |||
| 11 | 21 | moderately disturbed | plot | |||
| 12 | 19 | moderately disturbed | plot | |||
| 13 | 18 | moderately disturbed | plot | |||
| 14 | 11 | moderately calm | sfe | plot | ||
| 15 | 11 | moderately calm | sfe | plot | ||
| 16 | 15 | moderately calm | storm sfe | plot | ||
| 17 | 21 | moderately disturbed | sfe | plot | ||
| 18 | 11 | moderately calm | sfe | plot | ||
| 19 | 12 | moderately calm | plot | |||
| 20 | 14 | moderately calm | plot | |||
| 21 | 05 | calm | sfe | plot | ||
| 22 | 21 | moderately disturbed | storm sfe | plot | ||
| 23 | 28 | disturbed | plot | |||
| 24 | 29 | disturbed | storm | plot | ||
| 25 | 40 | disturbed | pi | plot | ||
| 26 | 26 | disturbed | storm | plot | ||
| 27 | 46 | disturbed | si | plot | ||
| 28 | 18 | moderately disturbed | plot | |||
| 29 | 12 | moderately calm | plot | |||
| 30 | 15 | moderately calm | si pi | plot | ||
| 31 | 14 | moderately calm | pi | plot |
*) Plot diagram opens in a separate window.
Copyright (c) Kakioka Magnetic Observatory, Japan Meteorological Agency. All rights reserved.
