Topic
Geomagnetic observatory
7
K index
7
MAGOBS
7
Maximum fluctuation
7
geomagnetism
7
geophysics
7
historical data
7
DATE/TIME
5
Day of the year
5
Geomagnetic activity (World Data Center for Solar-Terrestrial Physics)
5
Lower limit for K = 9 (depends on the latitude of the observatory)
5
Russia
5
Soviet data
5
Station label
5
Sum of 8 index values per day
5
CCS_K_index
4
Cape Chelyuskin
4
ARK_K_index
3
Arkhangelsk
3
AAA_K_index
2
ARS_K_index
2
ASH_K_index
2
Alma- Ata
2
Arti (Yekaterinburg)
2
Ashkhabad (Vannovskaya)
2
Belorussia
2
Binary Object
2
CWE_K_index
2
Cape Wellen
2
Code
2
Country
2
DIK_K_index
2
Dikson (Dixon)
2
ELEVATION
2
Event label
2
Georgia
2
HIS_K_index
2
Heiss Island (Druzhnaya)
2
IRT_K_index
2
Irkutsk (Patrony)
2
KGD_K_index
2
KIV_K_index
2
KNG_K_index
2
KZN_K_index
2
Kaliningrad
2
Karaganda (Bereznyaki)
2
Kazakhstan
2
Kazan (Zaymishe)
2
Kiev (Dymer)
2
LATITUDE
2
more ...