Sastri, J. H; Ramesh, K. B; Rao, J. V. S. V; Rao, D. R. K
(The Royal Swedish Academy of Sciences, 1986-12)
Recordings of the variations in phase path, P of reflections, at vertical incidence, from blanketing sporadic-E layers over Kodaikanal (dip 3.5°N) revealed small amplitude, quasi-sinusoidal oscillations of 45-180 s periods ...