Articles | Volume 18, issue 3
https://doi.org/10.1007/s00585-000-0285-6
© European Geosciences Union 2000
https://doi.org/10.1007/s00585-000-0285-6
© European Geosciences Union 2000
31 Mar 2000
31 Mar 2000
Semiannual and annual variations in the height of the ionospheric F2-peak
H. Rishbeth
Department of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK
Correspondence to: H. Rishbeth
K. J. F. Sedgemore-Schulthess
Department of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK
Correspondence to: H. Rishbeth
T. Ulich
Sodankylä Geophysical Observatory, Tähteläntie 112, Sodankylä FIN-90570 Finland
Correspondence to: H. Rishbeth
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