IIA Institutional Repository

Browsing by Subject "Ionospheric Propagation"

Browsing by Subject "Ionospheric Propagation"

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  • Daytime equatorial VHF radiowave scintillations and sporadic-E layer 
    Koparkar, P. V; Rastogi, R. G; Sastri, J. H (The Council of Scientific and Industrial Research, 1989-08)
    Daytime VHF radiowave scintillations at Trivandrum are compared with the E-region irregularities at Kodaikanal. It is shown that daytime scintillations at Trivandrum are basically of two categories. One type of scintillations ...
  • Forenoon bite-out in f0F2 at low latitudes 
    Sastri, J. H; Ramesh, K. B (The Council of Scientific and Industrial Research, 1982-04)
    Evidence is presented showing that the longitudinal extent of the forenoon bite-out in f0F2 at low geomagnetic latitudes can sometimes be very narrow and that marked differences in the extent of the development of the ...
  • Occurrence of M and N echoes at the equatorial station, Kodaikanal 
    Sastri, J. H; Murthy, B. S (National Institute of Science Communication And Information Resources, 1975-03)
    Results are presented from a study on the occurrence of M and N traces on ionograms at the equatorial station Kodaikanal, with particular reference to their associations with various sporadic configurations. It is shown ...
  • 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 ...

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