The monthly mean values of the geomagnetic field components at Kakioka are D: -77.1, H: 29985nT, Z: 35454nT and F: 46434nT for April 2009.
Monthly average of the K-index daily sum is 6.7. indicates an extremely lowl level of geomagnetic activity during the month.
Notable geomagnetic events include 0 magnetic storms, 1 si, 1 bay, 0 sfe, 1 pi and 0 pc.
The international 5 quietest days are the 2,4,7,23,30th.
The international 5 most disturbed days are the 9,10,11,12,18th.
Plot of the geomagnetic hourly value for April 2009
Plot of the K-index daily total sum for 2009
| Date | K-index daily sum |
Geomagnetic activity |
Geomagnetic phenomena |
International 5 quietest days |
International 5 quietest days |
geomagnetic 1-minute value plot |
|---|---|---|---|---|---|---|
| 1 | 06 | calm | plot | |||
| 2 | 03 | extremely calm | plot | |||
| 3 | 03 | extremely calm | plot | |||
| 4 | 02 | extremely calm | plot | |||
| 5 | 09 | calm | plot | |||
| 6 | 03 | extremely calm | plot | |||
| 7 | 04 | calm | plot | |||
| 8 | 12 | moderately calm | plot | |||
| 9 | 15 | moderately calm | plot | |||
| 10 | 11 | moderately calm | plot | |||
| 11 | 17 | moderately disturbed | bay | plot | ||
| 12 | 09 | calm | pi | plot | ||
| 13 | 01 | extremely calm | plot | |||
| 14 | 03 | extremely calm | plot | |||
| 15 | 07 | calm | plot | |||
| 16 | 10 | calm | si | plot | ||
| 17 | 08 | calm | plot | |||
| 18 | 14 | moderately calm | plot | |||
| 19 | 09 | calm | plot | |||
| 20 | 06 | calm | plot | |||
| 21 | 03 | extremely calm | plot | |||
| 22 | 05 | calm | plot | |||
| 23 | 02 | extremely calm | plot | |||
| 24 | 12 | moderately calm | plot | |||
| 25 | 07 | calm | plot | |||
| 26 | 03 | extremely calm | plot | |||
| 27 | 02 | extremely calm | plot | |||
| 28 | 04 | calm | plot | |||
| 29 | 08 | calm | plot | |||
| 30 | 03 | extremely calm | plot |
*) Plot diagram opens in a separate window.
Copyright (c) Kakioka Magnetic Observatory, Japan Meteorological Agency. All rights reserved.
