IIA Institutional Repository

Browsing by Author "Murthy, B. S"

Browsing by Author "Murthy, B. S"

Sort by: Order: Results:

  • Geomagnetic crochets associated with proton flares 
    Sastri, J. H; Murthy, B. S; Karunakaran, D (National Institute of Science Communication And Information Resources, 1975-03)
  • Geomagnetic effect associated with X-ray flare from Sco X-1 
    Sastri, J. H; Murthy, B. S (Nature Publishing Group, 1975-09)
    The possibility is examined that an X-ray flare from Sco X-1, detected during a balloon flight in 1967, had a daytime geomagnetic effect. There was uncertainty as to the cause of the geomagnetic effect because of a ...
  • Geomagnetic effects in the dark hemisphere associated with solar flares 
    Sastri, J. H; Murthy, B. S (Japan Science and Technology Agency, 1975-01)
    Observational data are presented which show that geomagnetic effects occur in the dark hemisphere in association with solar flares. The characteristics of these events (referred to as NTSFEs) are found to be significantly ...
  • Ionosphere scintillations associated with features of equatorial ionosphere 
    Chandra, H; Vats, H. O; Sethia, G; Deshpande, M. R; Rastogi, R. G; Sastri, J. H; Murthy, B. S (European Geophysical Society, 1979-09)
    Amplitude scintillations of radio beacons aboard the ATS-6 satellite on 40 MHz, 140 MHz and 360 MHz recorded during the ATS-6 phase II at an equatorial station Ootacamund (dip 4 deg N) and the ionograms at a nearby station ...
  • Nighttime Pi2 micropulsations at Kodaikanal 
    Sastri, J. H; Murthy, B. S (National Institute of Science Communication And Information Resources, 1975-09)
  • Observations on spread-F at Kodaikanal 
    Sastri, J. H; Murthy, B. S (National Institute of Science Communication And Information Resources, 1975-06)
    A study of quarter-hourly ionograms of Kodaikanal (geomag. lat: O'6oN; dip: 3'5°N) showed several instances when the spread-F disappears and subsequently. reappears in two hrs or less during it night. Investigation of such ...
  • 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 ...
  • Occurrence of night sporadic-E (Es) in relation to geomagnetic storms 
    Sastri, J. H; Murthy, B. S; Sasidharan, K (Indian Academy of Sciences, 1978-08)
  • On the occurrence of AQDs at Kodaikanal 
    Sastri, J. H; Murthy, B. S (The Council of Scientific and Industrial Research, 1978-02)
    A study is made of the occurrence of 'abnormal quiet days' (AQDs) at Kodaikanal (10 deg 14 min N, 77 deg 28 min E; dip 3.5 deg N) using H-field data over a 26-yr period (1950-1975). The results show distinctive differences ...
  • On the relationships between sfe (crochet) and solar X-ray and microwave bursts 
    Sastri, J. H; Murthy, B. S (D.Reidel Publishing Co.,, 1975-04)
    Geomagnetic crochets (sfe) observed at Kodaikanal over the period 1966-71 have been studied in relation to solar X-ray bursts observed by NRL satellite (SOLRAD-9) in the 0.5-3 A, 1-8 A and 8-20 A bands and radio bursts ...
  • Onset of equatorial spread-f 
    Sastri, J. H; Murthy, B. S (European Geophysical Society, 1978)
  • Small scale fluctuations in the F-region critical frequency at Kodaikanal 
    Sastri, J. H; Murthy, B. S (Japan Science and Technology Agency, 1977-03)
    Some preliminary results obtained on the small scale fluctuations in the F-region critical frequency at Kodaikanal (Dip 3.5 deg) using 1-min interval ionograms, are presented. Spectral analysis showed the fluctuations to ...
  • 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 ...
  • Sudden commencements and impulses in Kodaikanal magnetograms - their hourly frequency 
    Murthy, B. S (Manager of Publications Civil Lines Delhi, 1959-04)
    The diurnal variation in the frequencies of sudden commencements (SCs) and sudden impulses (SIs) at Kodaikanal (10.2°N, 77.5°E) is analysed from the data for the period 1949-1957. The hourly frequency curve of SCs and SIs ...
  • Total electron content and F-region electron density distribution near the magnetic equator in India 
    Rastogi, R. G; Sethia, G; Chandra, H; Deshpande, M. R; Davies, K; Murthy, B. S (Pergamon Press, 1979-06)
    Total electron content derived from the group delay measurements of ATS-6 radio beacons received at Ootacamund (India) are compared with the electron-density vs height distributions derived from the ionosonde data of the ...
  • Travelling ionospheric disturbances in the lower F-region 
    Murthy, B. S; Ramachandra Rao, B (Indian Academy of Sciences, 1979-06)

Search DSpace

Browse

My Account