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Monthly overview (Apr 2002)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7��2.9��, H: 29998nT, Z: 35374nT and F: 46381nT for April 2002.

Monthly average of the K-index daily sum is 15.8. indicates a slightly high level of geomagnetic activity during the month.

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

The international 5 quietest days are the 5,8,9,25,26^th.

The international 5 most disturbed days are the 17,18,19,20,23^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	19	moderately disturbed				plot
2	16	moderately calm				plot
3	16	moderately calm				plot
4	08	calm				plot
5	04	calm		��		plot
6	06	calm				plot
7	12	moderately calm				plot
8	01	extremely calm		��		plot
9	03	extremely calm	sfe	��		plot
10	11	moderately calm				plot
11	20	moderately disturbed				plot
12	22	moderately disturbed	si			plot
13	24	disturbed	bay			plot
14	17	moderately disturbed				plot
15	12	moderately calm				plot
16	09	calm				plot
17	30	disturbed	storm		��	plot
18	31	disturbed			��	plot
19	36	disturbed	storm bay		��	plot
20	33	disturbed			��	plot
21	14	moderately calm				plot
22	15	moderately calm				plot
23	25	disturbed	si bay			plot
24	12	moderately calm				plot
25	04	calm		��		plot
26	06	calm				plot
27	14	moderately calm				plot
28	22	moderately disturbed				plot
29	16	moderately calm	pi			plot
30	15	moderately calm				plot

*) Plot diagram opens in a separate window.