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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, 4 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 si		○	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 si		○	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.