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Monthly overview (Oct 1997)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7��1.7��, H: 30053nT, Z: 35316nT and F: 46372nT for October 1997.

Monthly average of the K-index daily sum is 15. indicates a moderate level of geomagnetic activity during the month.

Notable geomagnetic events include 2 magnetic storms, 2 si, 5 bay, 0 sfe, 6 pi and 0 pc.

The international 5 quietest days are the 5,15,16,19,21^th.

The international 5 most disturbed days are the 1,10,24,25,27^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	31	disturbed	storm		��	plot
2	13	moderately calm				plot
3	20	moderately disturbed	pi			plot
4	09	calm	pi			plot
5	05	calm		��		plot
6	08	calm				plot
7	17	moderately disturbed				plot
8	22	moderately disturbed	pi			plot
9	21	moderately disturbed	pi			plot
10	30	disturbed	storm		��	plot
11	17	moderately disturbed				plot
12	13	moderately calm	bay			plot
13	14	moderately calm				plot
14	07	calm				plot
15	08	calm		��		plot
16	08	calm		��		plot
17	14	moderately calm	bay			plot
18	10	calm				plot
19	06	calm	pi	��		plot
20	11	moderately calm				plot
21	08	calm				plot
22	10	calm				plot
23	16	moderately calm	si			plot
24	23	disturbed	si		��	plot
25	21	moderately disturbed	bay pi		��	plot
26	21	moderately disturbed	bay			plot
27	21	moderately disturbed				plot
28	21	moderately disturbed				plot
29	16	moderately calm				plot
30	13	moderately calm	bay			plot
31	10	calm				plot

*) Plot diagram opens in a separate window.