Home > Observation data > Monthly overview > Monthly overview (Jul 1998)

Monthly overview (Jul 1998)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7°-2.6′°, H: 30047nT, Z: 35338nT and F: 46386nT for July 1998.

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, 1 si, 1 bay, 1 sfe, 4 pi and 0 pc.

The international 5 quietest days are the 8,14,15,20,27^th.

The international 5 most disturbed days are the 6,16,23,24,31^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	13	moderately calm				plot
2	19	moderately disturbed				plot
3	18	moderately disturbed				plot
4	17	moderately disturbed				plot
5	19	moderately disturbed	pi			plot
6	24	disturbed			○	plot
7	10	calm				plot
8	08	calm		○		plot
9	17	moderately disturbed				plot
10	09	calm				plot
11	18	moderately disturbed				plot
12	14	moderately calm				plot
13	11	moderately calm	pi			plot
14	04	calm		○		plot
15	07	calm	storm	○		plot
16	31	disturbed			○	plot
17	13	moderately calm				plot
18	06	calm				plot
19	08	calm				plot
20	06	calm		○		plot
21	16	moderately calm	si pi			plot
22	15	moderately calm				plot
23	28	disturbed	pi		○	plot
24	23	disturbed	bay		○	plot
25	16	moderately calm				plot
26	09	calm				plot
27	07	calm		○		plot
28	11	moderately calm	sfe			plot
29	17	moderately disturbed				plot
30	17	moderately disturbed	storm			plot
31	34	disturbed			○	plot

*) Plot diagram opens in a separate window.