Results 11 to 20 of about 5,979 (206)
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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Earth, Planets and Space, 2014 The auroral electrojet is enhanced in the polar ionosphere associated with charged particle precipitation and field-aligned currents during substorms. In this paper the geometry of the elctrojet is determined by using the ionospheric equivalent current systems for every 5 minutes during March 18 and 19, 1978.
Chen, Geng-Xiong +4 more
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On the height variation of the E-region cowling conductivity – effect of charged dust particles [PDF]
Annales Geophysicae, 2006 Height profiles of the Cowling conductivity in the electrojet region, estimated using the atmospheric parameters given by the existing models like CIRA or MSIS and measured electron density profiles, consistently show the heights of the electrojet ...
P. Muralikrishna, V. H. Kulkarni
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Electrojet Estimates From Mesospheric Magnetic Field Measurements [PDF]
Journal of Geophysical Research: Space Physics, 2021 Abstract The auroral electrojet is traditionally measured remotely with magnetometers on ground or in low Earth orbit (LEO). The sparse distribution of measurements, combined with a vertical distance of some 100 km to ground and typically >300 km to LEO satellites, means that smaller scale sizes can't be detected.
K. M. Laundal +8 more
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Substorm behavior of the auroral electrojet indices [PDF]
Annales Geophysicae, 2004 The behavior of the auroral electrojet indices AU and AL during classical substorms is investigated by the use of global auroral images. A superposition of the 12 AE stations onto global auroral images and identification of the AL and AU contributing ...
J. W. Gjerloev +4 more
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Effects of solar wind density on auroral electrojets and brightness under influence of substorms [PDF]
Annales Geophysicae, 2009 Using the auroral electrojet indices and Polar Ultraviolet Imager auroral images, we examined two fortuitous events during which the solar wind density had clear enhancements while the other solar wind parameters were relatively constant.
J.-H. Shue, Y. Kamide, J. W. Gjerloev
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Evidence and effects of a wave-driven nonlinear current in the equatorial electrojet [PDF]
Annales Geophysicae, 1997 Ionospheric two-stream waves and gradient-drift waves nonlinearly drive a large-scale (D.C.) current in the E-region ionosphere. This current flows parallel to, and with a comparable magnitude to, the fundamental Pedersen current.
M. Oppenheim
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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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Generation of electric fields and currents by neutral flows in weakly ionized plasmas through collisional dynamos [PDF]
, 2016 In weakly ionized plasmas neutral flows drag plasma across magnetic field lines generating intense electric fields and currents. An example occurs in the Earth's ionosphere near the geomagnetic equator.
Dimant, Y.S. +2 more
core +1 more source
The quiet-time equatorial electrojet and counter-electrojet.
Journal of geomagnetism and geoelectricity, 1979 Using ground magnetometer data from several stations near the dip equator, the magnetically quiet-time characteristics of the daytime normal electrojet and the morning and afternoon counter-electrojets are established and illustrated. In particular, the solar cycle, seasonal, longitudinal and day-to-day variations of counter-electrojets as well as ...
R. T. MARRIOTT +2 more
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