Home > Observation data > Monthly overview > Monthly overview (Nov 1991)

Monthly overview (Nov 1991)

The monthly mean values of the geomagnetic field components at Kakioka are D: -6��53��, H: 30087nT, Z: 35028nT and F: 46176nT for November 1991.

Monthly average of the K-index daily sum is 24.1. indicates an extremely high level of geomagnetic activity during the month.

Notable geomagnetic events include 4 magnetic storms, 4 si, 7 bay, 3 sfe, 0 pi and 0 pc.

The international 5 quietest days are the 12,25,26,27,28^th.

The international 5 most disturbed days are the 1,8,9,19,21^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	40	disturbed			��	plot
2	25	disturbed	sfe			plot
3	21	moderately disturbed				plot
4	25	disturbed				plot
5	23	disturbed				plot
6	18	moderately disturbed				plot
7	16	moderately calm				plot
8	38	disturbed	storm si		��	plot
9	43	disturbed			��	plot
10	25	disturbed	si			plot
11	24	disturbed	si			plot
12	11	moderately calm		��		plot
13	20	moderately disturbed				plot
14	26	disturbed	storm si			plot
15	30	disturbed	bay sfe			plot
16	27	disturbed	bay			plot
17	24	disturbed				plot
18	30	disturbed	bay			plot
19	33	disturbed	storm		��	plot
20	20	moderately disturbed	storm			plot
21	35	disturbed				plot
22	31	disturbed				plot
23	28	disturbed				plot
24	21	moderately disturbed				plot
25	12	moderately calm		��		plot
26	13	moderately calm	bay	��		plot
27	11	moderately calm	bay	��		plot
28	17	moderately disturbed				plot
29	18	moderately disturbed				plot
30	18	moderately disturbed	sfe			plot

*) Plot diagram opens in a separate window.