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  1. No Access

    Article

    A multi-technique study of the 29–31 October 2003 geomagnetic storm effect on low latitude ionosphere over Indian region with magnetometer, ionosonde, and GPS observations

    The present study demonstrates the ionospheric response to the extreme geomagnetic storms during 29–31 Oct 2003 (the Halloween storm), in the low latitude anomaly Indian region, based on multi-instrument measu...

    Sampad Kumar Panda, Shirish S. Gedam, Girija Rajaram… in Astrophysics and Space Science (2014)

  2. No Access

    Article

    Energy dependence of near-relativistic electron spectrum at geostationary orbit during the SEP events of 2005

    In view of the renewed interest in the study of energetic particles in the outer radiation belt of the earth, we feel it will be helpful in looking for the energy dependence of the electron energy spectrum at ...

    A. Chandrasekhar Reddy, Jatin Rathod… in Journal of Astrophysics and Astronomy (2008)

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    Article

    Relationship between interplanetary (IP) parameters and geomagnetic indices during IP shock events of 2005

    In the present study, we investigate the possible relationship of IP parameters of solar wind and interplanetary magnetic field with ground-based geomagnetic indices. To carry out the study, we take all the IP...

    Jatin Rathod, Girija Rajaram, Radharani Alyana… in Journal of Astrophysics and Astronomy (2008)

  4. No Access

    Article

    Velocity of small-scale auroral ionospheric current systems over Indian Antarctic station Maitri

    The Indian Antarctic station Maitri (geog. 70‡45’S, 11‡45’E, geom. 66‡.03S, 53‡.21E) occupies a sub-auroral location during magnetically quiet conditions(Σκρ < 10), but attains an auroral position when the aurora...

    Girija Rajaram, A. N. Hanchinal, R. Kalra… in Journal of Earth System Science (2002)

  5. No Access

    Article

    SporadicE ionization associated with meteor events

    Two meteor events which were sighted in the Gujarat skies of India, were accompained by the visibility of sporadicE ionization on the ionograms recorded at Ahmedabad (Geog. Lat. 23·2°N, long. 72·30°E). The first ...

    Girija Rajaram, H Chandra in Proceedings of the Indian Academy of Scien… (1991)

  6. No Access

    Article

    Features of electron density and temperature in the 500–3500 km region of the plasmasphere—(1) Dawn and dusk sectors

    Dawn-dusk features of the plasmasphere are examined for intervals in February and September 1969, using electrostatic probe data ofN e andT e from the ISIS-I satellite. Clear plasm...

    Girija Rajaram, A C Das in Proceedings of the Indian Academy of Sciences - Section A (1977)