Service International des Indices Géomagnétiques
International Service of Geomagnetic Indices
8 result(s) found for : Index = aa ; Status = All ; Country = unspecified
| IAGA code | Location | Country | Status | Index(es) | Remark |
| ABN | Abinger | United Kingdom | Closed | aa, Kp | replaced by HAD |
| CNB | Canberra | Australia | Open - INTERMAGNET member | aa, am, Kp | |
| GRW | Greenwich | United Kingdom | Closed | aa | replaced by ABN |
| HAD | Hartland | United Kingdom | Open - INTERMAGNET member | aa, am, Kp | |
| MEL | Melbourne | Australia | Closed | aa | replaced by TOO |
| TOO | Toolangi | Australia | Closed | aa, am, Kp | replaced by CNB |
