Spatial and temporal variations of small-scale plasma turbulence parameters in the equatorial electrojet: HF and VHF radar observational results [PDF]
Annales Geophysicae, 2005 The spatial and temporal variations of various parameters associated with plasma wave turbulence in the equatorial electrojet (EEJ) at the magnetic equatorial location of Trivandrum (8.5° N, 77° E; dip 0.5° N) are studied for the first ...
G. Manju +2 more
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Variabilities of mesospheric tides and equatorial electrojet strength during major stratospheric warming events [PDF]
Annales Geophysicae, 2009 The present study demonstrates the relationship between the high latitude northern hemispheric major sudden stratospheric warming (SSW) events and the reversal in the afternoon equatorial electrojet (EEJ), often called the counter-electrojet (CEJ ...
S. Sridharan +2 more
doaj +4 more sources
Letter to the Editor: Geomagnetic storm effects at low latitudes [PDF]
Annales Geophysicae, 1999 The geomagnetic horizontal (H) field from the chain of nine observatories in India are used to study the storm-time and disturbance daily variations.
R. G. Rastogi, R. G. Rastogi
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Meridional equatorial electrojet current in the American sector [PDF]
Annales Geophysicae, 1999 Huancayo is the only equatorial electrojet station where the daytime increase of horizontal geomagnetic field (H) is associated with a simultaneous increase of eastward geomagnetic field (Y). It is shown that during the counter electrojet period when ∆
R. G. Rastogi
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Prompt penetration effects on Equatorial Electrojet from the Indian sector
Earth, Planets and Space, 2023 The morphology of prompt penetration effects (PP) in the Equatorial Electrojet (EEJ) at Vencode (VEN, Geomagnetic latitude 0.29ºN) was studied using 5-min samples of EEJ and interplanetary Ey component data from 2011 to 2015.
R. K. Archana +2 more
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Observations of equatorial ionization anomaly over Africa and Middle East during a year of deep minimum [PDF]
Annales Geophysicae, 2017 In this work, we investigated the veracity of an ion continuity equation in controlling equatorial ionization anomaly (EIA) morphology using total electron content (TEC) of 22 GPS receivers and three ground-based magnetometers (Magnetic Data ...
O. Bolaji +13 more
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Morphological aspects of a new type of counter electrojet event [PDF]
Annales Geophysicae, 1999 The study describes the time and space morphologies of a rather new type of counter electrojet event on the basis of data from the excellent chain of magnetic and ionospheric observatories along the Indo-Russian longitude sector.
R. G. Rastogi
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Electrodynamical response of the Indian low-mid latitude ionosphere to the very large solar flare of 28 October 2003 – a case study [PDF]
Annales Geophysicae, 2009 The electrodynamic effects on the low-mid latitude ionospheric region have been investigated using GPS (global positioning system) data, ionosonde data and ΔH values, during the very large solar flare (X17.2/4B) of 28 October 2003.
G. Manju +4 more
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Asymmetries in the equatorial electrojet around N-E Brazil sector [PDF]
Annales Geophysicae, 2009 The paper examines the data of geographic northward (X), eastward (Y) and vertical (Z) components of the magnetic field from a dense array of 26 vector magnetometers operated in N-NE Brazil from November 1990 to March 1991.
R. G. Rastogi, N. B. Trivedi
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Improving and testing the empirical equatorial electrojet model with CHAMP satellite data [PDF]
Annales Geophysicae, 2004 The longitudinal variation of the Equatorial Electrojet (EEJ) intensity has been revised including data from the equatorial station of Baclieu (Vietnam), where an unexpected enhancement of the EEJ magnetic effects is observed.
V. Doumouya, Y. Cohen
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