Summary of geomagnetic indices.
|Hp (incl. Hp90, Hp60, Hp30)||90, 60, 30 min||Based on Kp method|
|Kp||3 h||Sub-auroral and mid-latitude|
|AE (incl. AL, AU, AO)||1 min||AE = AU − AL: overall electrojet activity; AO = 0.5(AU + AL): equivalent zonal current|
|PC||1 min||Energy input from solar wind, merging electric field|
|Dst||1 h||Magnetospheric ring current intensity|
|Wp||1 min||Pi2-activity, timing of substorm onset|
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