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Monthly overview (Sep 2001)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7��3.2��, H: 30003nT, Z: 35375nT and F: 46385nT for September 2001.

Monthly average of the K-index daily sum is 15.5. indicates a slightly high level of geomagnetic activity during the month.

Notable geomagnetic events include 2 magnetic storms, 2 si, 1 bay, 7 sfe, 0 pi and 0 pc.

The international 5 quietest days are the 1,7,9,10,21^th.

The international 5 most disturbed days are the 15,23,26,29,30^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	11	moderately calm		��		plot
2	09	calm	sfe			plot
3	20	moderately disturbed				plot
4	20	moderately disturbed				plot
5	10	calm				plot
6	06	calm	sfe			plot
7	09	calm		��		plot
8	09	calm	sfe			plot
9	10	calm	sfe	��		plot
10	07	calm		��		plot
11	17	moderately disturbed				plot
12	18	moderately disturbed				plot
13	20	moderately disturbed				plot
14	20	moderately disturbed	si			plot
15	20	moderately disturbed			��	plot
16	12	moderately calm	sfe			plot
17	11	moderately calm				plot
18	19	moderately disturbed				plot
19	12	moderately calm				plot
20	11	moderately calm				plot
21	06	calm				plot
22	15	moderately calm				plot
23	28	disturbed			��	plot
24	14	moderately calm				plot
25	18	moderately disturbed	storm sfe			plot
26	24	disturbed			��	plot
27	17	moderately disturbed				plot
28	21	moderately disturbed				plot
29	28	disturbed	si bay		��	plot
30	23	disturbed	storm			plot

*) Plot diagram opens in a separate window.