Table 1.
Quasi Dipole geomagnetic coordinates (in degrees) of the INTERMAGNET magnetometers used in this study. Column one: full name, country. Column 2: Acronym. Column 3: Magnetic latitude. Column 4: Quasi Dipole geomagnetic longitude.
| Full name | Acronym | Latitude | Longitude |
|---|---|---|---|
| Hel Observatory, Poland | HLP | 50.79 | 93.87 |
| Belsk, Poland | BEL | 47.71 | 95.04 |
| Tihany, Hungary | THY | 41.88 | 91.53 |
| Average longitude group 1: | 93.48 | ||
| Eskdalemuir, UK | ESK | 51.95 | 75.40 |
| Hartland, UK | HAD | 46.69 | 73.17 |
| Chambon-la-Foret, France | CLF | 42.78 | 78.06 |
| Ebro, Spain | EBR | 33.29 | 75.19 |
| Average longitude group 2: | 75.46 |
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