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Monthly overview (May 2001)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7��3��, H: 30013nT, Z: 35380nT and F: 46396nT for May 2001.

Monthly average of the K-index daily sum is 13.8. indicates a moderate level of geomagnetic activity during the month.

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

The international 5 quietest days are the 1,5,21,30,31^th.

The international 5 most disturbed days are the 9,10,12,13,28^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	03	extremely calm		��		plot
2	13	moderately calm				plot
3	15	moderately calm				plot
4	13	moderately calm				plot
5	02	extremely calm		��		plot
6	10	calm				plot
7	18	moderately disturbed	pi			plot
8	16	moderately calm				plot
9	26	disturbed	bay		��	plot
10	18	moderately disturbed			��	plot
11	12	moderately calm				plot
12	28	disturbed	pi		��	plot
13	23	disturbed	pi		��	plot
14	15	moderately calm				plot
15	16	moderately calm	pi			plot
16	14	moderately calm				plot
17	11	moderately calm				plot
18	13	moderately calm				plot
19	11	moderately calm				plot
20	10	calm	sfe			plot
21	08	calm		��		plot
22	16	moderately calm	pi			plot
23	19	moderately disturbed				plot
24	10	calm				plot
25	11	moderately calm				plot
26	12	moderately calm				plot
27	14	moderately calm	si			plot
28	27	disturbed				plot
29	16	moderately calm				plot
30	04	calm		��		plot
31	03	extremely calm				plot

*) Plot diagram opens in a separate window.