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Monthly overview (Apr 2000)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7��3.5��, H: 30006nT, Z: 35374nT and F: 46387nT for April 2000.

Monthly average of the K-index daily sum is 16.4. indicates a slightly high level of geomagnetic activity during the month.

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

The international 5 quietest days are the 14,18,22,25,26^th.

The international 5 most disturbed days are the 4,6,7,16,24^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	23	disturbed	pi			plot
2	15	moderately calm				plot
3	17	moderately disturbed				plot
4	23	disturbed			��	plot
5	10	calm				plot
6	31	disturbed	storm		��	plot
7	32	disturbed			��	plot
8	15	moderately calm				plot
9	19	moderately disturbed	sfe			plot
10	18	moderately disturbed				plot
11	14	moderately calm				plot
12	12	moderately calm	sfe			plot
13	05	calm				plot
14	04	calm		��		plot
15	09	calm				plot
16	27	disturbed	storm		��	plot
17	18	moderately disturbed				plot
18	10	calm		��		plot
19	21	moderately disturbed				plot
20	19	moderately disturbed				plot
21	15	moderately calm	sfe			plot
22	09	calm		��		plot
23	13	moderately calm				plot
24	25	disturbed	si			plot
25	10	calm		��		plot
26	07	calm	sfe			plot
27	21	moderately disturbed				plot
28	20	moderately disturbed				plot
29	17	moderately disturbed				plot
30	14	moderately calm				plot

*) Plot diagram opens in a separate window.