Browsing by Subject "Equatorial electrojet"

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Doppler frequency fluctuations of lower thermospheric reflections in the equatorial electrojet region

Sastri, J. H; Ramesh, K. B; Rao, J. V. S. V (Elsevier, 1991-07)

The origin of short-period fluctuations from Doppler frequency-shift (P) data is investigated by examining their quantitative relationships with ambient electrojet strength and associated ionospheric conditions. The wave ...
Origin of short-period (30-300 s) Doppler frequency fluctuations of lower F region reflections in the equatorial electrojet region

Sastri, J. H; Ramesh, K. B; Rao, J. V. S. V; Somayajulu, V. V (American Geophysical Union, 1991-12)

Measurements of phase path P of lower F-region reflections at normal incidence at Kodaikanal revealed the ubiquitous presence of 30-300-s quasi-sinusoidal variations in the time rate of change of phase path, P (Doppler ...
Oscillations in F-region doppler velocity in the dip equatorial region associated with ULF geomagnetic pulsations

Sastri, J. H; Ramesh, K. B; Rao, D. R. K; Rao, J. V. S. V (Elsevier Science, 1993-07)

Measurements are presented, made on March 24, 1991 over the Kodaikanal, showing that, around sunset, the Doppler velocity of F-region reflections at vertical incidence is influenced by MHD waves, the magnetic effects of ...

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