Forecasts and Summaries

• Joint USAF/NOAA Report of Solar and Geomagnetic Activity
• Magnetic Activity Forecasts and Reviews (Canada)
• Geomagnetism Information and Forecast Service (UK)

Real-time and Recent Data

• USGS Geomagnetism Program
• Canadian National Geomagnetism Program
• British Geological Survey Geomagnetism Program
• INTERMAGNET
• US Geomagnetic Observatories in Operation

Final Indices

• Kp, ap, Ap, Cp and C9

Archives

• Digital Geomagnetic Holdings from NGDC's Geomagnetic Data Services Group
• Geomagnetic Data at NGDC
• International Service of Geomagnetic Indices
• World Data Center C1 for Geomagnetism (Denmark)
• World Data Center C2 for Geomagnetism (Japan)

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