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Monthly overview (Apr 2004)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7��3.1��, H: 29994nT, Z: 35372nT and F: 46377nT for April 2004.

Monthly average of the K-index daily sum is 14. indicates a moderate level of geomagnetic activity during the month.

Notable geomagnetic events include 1 magnetic storms, 4 si, 2 bay, 1 sfe, 6 pi and 0 pc.

The international 5 quietest days are the 1,2,20,22,29^th.

The international 5 most disturbed days are the 3,5,6,9,23^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	07	calm	pi	��		plot
2	05	calm		��		plot
3	27	disturbed	storm		��	plot
4	21	moderately disturbed				plot
5	20	moderately disturbed	sfe		��	plot
6	21	moderately disturbed			��	plot
7	19	moderately disturbed	pi			plot
8	18	moderately disturbed	bay pi			plot
9	20	moderately disturbed	si		��	plot
10	13	moderately calm	si			plot
11	13	moderately calm				plot
12	15	moderately calm	si			plot
13	08	calm				plot
14	07	calm				plot
15	11	moderately calm				plot
16	20	moderately disturbed	pi			plot
17	12	moderately calm				plot
18	16	moderately calm	pi			plot
19	09	calm				plot
20	04	calm		��		plot
21	11	moderately calm				plot
22	10	calm		��		plot
23	22	moderately disturbed				plot
24	17	moderately disturbed	bay pi			plot
25	17	moderately disturbed				plot
26	10	calm	si			plot
27	11	moderately calm				plot
28	13	moderately calm				plot
29	07	calm				plot
30	16	moderately calm				plot

*) Plot diagram opens in a separate window.