References
New real-time auroral activity index from geomagnetic measurements. Tiera Laitinen, Atte Kapanen, Kirsti Kauristie and Ari Viljanen, Finnish Meteorological Institute, European Space Weather Symposium 2020.
List of magnetometer stations
| IAGA code | Location | Country | Latitude ° N |
Longitude ° E |
First threshold |
Second threshold |
|---|---|---|---|---|---|---|
| KEV | Kevo | FI | 69.76 | 27.01 | 55 | 165 |
| MAS | Masi | NO | 69.46 | 23.70 | 58 | 185 |
| KIL | Kilpisjärvi | FI | 69.05 | 20.79 | 61 | 210 |
| IVA | Ivalo | FI | 68.56 | 27.29 | 72 | 275 |
| MUO | Muonio | FI | 68.02 | 23.53 | 75 | 300 |
| PEL | Pello | FI | 66.90 | 24.08 | 73 | 285 |
| RAN | Ranua | FI | 65.90 | 24.08 | 70 | 240 |
| OUJ | Oulujärvi | FI | 64.52 | 27.23 | 68 | 200 |
| MEK | Mekrijärvi | FI | 62.77 | 30.97 | 64 | 150 |
| HAN | Hankasalmi | FI | 62.25 | 26.60 | 63 | 140 |
| NUR | Nurmijärvi | FI | 60.50 | 24.65 | 60 | 120 |
| TAR | Tartu | EE | 58.26 | 26.46 | 55 | 100 |