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Monthly overview (Aug 1998)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7°-3′°, H: 30027nT, Z: 35344nT and F: 46378nT for August 1998.

Monthly average of the K-index daily sum is 18. indicates a high level of geomagnetic activity during the month.

Notable geomagnetic events include 2 magnetic storms, 3 si, 1 bay, 7 sfe, 5 pi and 1 pc.

The international 5 quietest days are the 9,15,16,17,18^th.

The international 5 most disturbed days are the 6,7,26,27,28^th.

Date	K-index daily sum	Geomagnetic activity	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	28	disturbed			plot
2	17	moderately disturbed			plot
3	14	moderately calm			plot
4	15	moderately calm			plot
5	14	moderately calm			plot
6	34	disturbed		○	plot
7	24	disturbed		○	plot
8	12	moderately calm			plot
9	06	calm	○		plot
10	22	moderately disturbed			plot
11	14	moderately calm			plot
12	15	moderately calm			plot
13	14	moderately calm			plot
14	18	moderately disturbed			plot
15	13	moderately calm	○		plot
16	04	calm	○		plot
17	01	extremely calm	○		plot
18	08	calm	○		plot
19	14	moderately calm			plot
20	23	disturbed			plot
21	08	calm			plot
22	26	disturbed			plot
23	25	disturbed			plot
24	14	moderately calm			plot
25	16	moderately calm			plot
26	30	disturbed		○	plot
27	41	disturbed		○	plot
28	27	disturbed		○	plot
29	19	moderately disturbed			plot
30	21	moderately disturbed			plot
31	21	moderately disturbed			plot

*) Plot diagram opens in a separate window.