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Spread F-layer echoes and radio-star scintillation
(University of Nairobi, 1956)
Observations of radio-star scintillations made at University College of the Gold Coast, Achimota, and spread F-layers made at University College, Ibadan, Nigeria, have been compared. Considerable correlation is found, ...
Equatorial ionospheric absorption
A study has been made of the variation of absorption with frequency and sun's zenith distance χ at Ibadan at vertical incidence. Since the propagation at Ibadan is almost purely transverse, simple theories in terms of ...
Some geomagnetic effects in the equatorial F2-region
The diurnal variations of the values of many ionospheric parameters obtained at Ibadan, Nigeria, close to the magnetic equator, are investigated on magnetically quiet days and on magnetically disturbed days. It is found ...
Horizontal drift measurements in the ionosphere near the equator
(University of Nairobi, 1958)
MEASUREMENTS of horizontal drift in the ionospheric E- and F-layers have been made regularly at Ibadan (magnetic latitude 2½° S.) since June 1957. These measurements are of importance in view of the theory of the origin ...