Service International des Indices Géomagnétiques
International Service of Geomagnetic Indices

List of geomagnetic observatories contributing to aa index

6 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