Articles | Volume 15, issue 10
https://doi.org/10.1007/s00585-997-1271-z
© European Geosciences Union 1997
https://doi.org/10.1007/s00585-997-1271-z
© European Geosciences Union 1997
31 Oct 1997
31 Oct 1997
Time variations of geomagnetic activity indices Kp and Ap: an update
G. K. Rangarajan
Indian Institute of Geomagnetism, Colaba, Mumbai 400 005, India
T. Iyemori
Data Analysis Center for Geomagnetism and Space Magnetism, Faculty of Science, Kyoto University, Kyoto 606 Japan
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Latest update: 08 Sep 2026
