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Monthly overview (Aug 1999)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7°-3.6′°, H: 30020nT, Z: 35365nT and F: 46388nT for August 1999.

Monthly average of the K-index daily sum is 18.2. indicates a high level of geomagnetic activity during the month.

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

The international 5 quietest days are the 2,3,10,14,21^th.

The international 5 most disturbed days are the 17,18,20,23,24^th.

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

*) Plot diagram opens in a separate window.