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Monthly overview (May 2003)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7��3.4��, H: 29982nT, Z: 35379nT and F: 46375nT for May 2003.

Monthly average of the K-index daily sum is 21.9. indicates an extremely high level of geomagnetic activity during the month.

Notable geomagnetic events include 1 magnetic storms, 7 si, 5 bay, 1 sfe, 11 pi and 1 pc.

The international 5 quietest days are the 3,4,16,17,18^th.

The international 5 most disturbed days are the 1,7,8,29,30^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	28	disturbed	bay		��	plot
2	18	moderately disturbed				plot
3	13	moderately calm		��		plot
4	13	moderately calm		��		plot
5	20	moderately disturbed	si pi			plot
6	25	disturbed				plot
7	26	disturbed	bay		��	plot
8	27	disturbed	bay		��	plot
9	27	disturbed	si			plot
10	26	disturbed	pi			plot
11	23	disturbed	pi			plot
12	23	disturbed	pi			plot
13	26	disturbed	bay pi			plot
14	24	disturbed				plot
15	22	moderately disturbed				plot
16	15	moderately calm		��		plot
17	12	moderately calm		��		plot
18	13	moderately calm	pi			plot
19	15	moderately calm				plot
20	16	moderately calm	pi			plot
21	21	moderately disturbed	pi			plot
22	23	disturbed	pi			plot
23	21	moderately disturbed	bay pi			plot
24	24	disturbed				plot
25	18	moderately disturbed				plot
26	19	moderately disturbed				plot
27	25	disturbed	sfe			plot
28	26	disturbed				plot
29	35	disturbed	storm si pc		��	plot
30	34	disturbed	si			plot
31	22	moderately disturbed				plot

*) Plot diagram opens in a separate window.