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Browsing by Subject "Ionospheric Disturbances"

Browsing by Subject "Ionospheric Disturbances"

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  • Day-to-day variability of midlatitude F region in winter 
    Sastri, J. H (National Institute of Science Communication and Information Resources, CSIR, 1977-06)
    A study is made of the day-to-day variability of midlatitude F region during winter daytime conditions, using total electron content (TEC) measurements at Auckland and Invercargill and peak density measurements at Auckland ...
  • Equatorial electric-fields of ionospheric disturbance dynamo orgin 
    Sastri, J. H (European Geosciences Union, 1988-12)
    Persistent and significant reductions in the strength of the equatorial electrojet, accompanied by poor development of the equatorial ionization anomaly, are noted to sometimes occur in association with negative ionospheric ...
  • Ionospheric disturbances associated with magnetic storms at Kodaikanal 
    Bhargava, B. N; Gopala Rao, U. V (Manager of Publications Civil Lines Delhi, 1959-04)
    F2 layer disturbance at Kodaikanal have been analysed for a study of the behaviour of the, critical frequency and the virtual height during geomagnetic storms. The disturbances have been classified for this purpose into ...
  • Onset of equatorial spread-f 
    Sastri, J. H; Murthy, B. S (European Geophysical Society, 1978)
  • Patchy occurrence of equatorial spread-F 
    Sastri, J. H (European Geosciences Union, 1985-10)
    From a statistical analysis of ionogram data of Kodaikanal (dip 3.5 deg N) it is shown that, during years of high sunspot activity, the discontinuous or patchy occurrence of equatorial spread-F (ESF) depends on season. ...
  • Spread-F at Kodaikanal 
    Sastri, J. H; Murthy, B. S (European Geophysical Society, 1975-06)
    Quarter-hourly ionograms of Kodaikanal for the period January 1968 to December 1969 have been examined for occurrence of Spread-F. Spread-F occurrence as a feature on ionograms is more or less a regular nocturnal event ...
  • Travelling ionospheric disturbances in the lower F-region 
    Murthy, B. S; Ramachandra Rao, B (Indian Academy of Sciences, 1979-06)

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