Results 31 to 40 of about 3,658 (176)
The Equatorial Electrojet: A brief review
Geofísica Internacional, 1992 Se presenta un breve resumen del descubrimiento del electrochorro ecuatorial (EEJ) y de la importancia de América del Sur en la investigación del EEl. Se discuten algunas cuestiones resueltas y no resueltas sobre el EEJ y el “contraelectrochorro" (CEJ ...
L. Muniz Barreto
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Variations of the peak positions in the longitudinal profile of noon-time equatorial electrojet
Earth, Planets and Space, 2020 In this study, the seasonal variations of the EEJ longitudinal profiles were examined based on the full CHAMP satellite magnetic measurements from 2001 to 2010. A total of 7537 satellite noon-time passes across the magnetic dip-equator were analyzed.
Zié Tuo +4 more
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Equatorial electrojet at African longitudes: first results from magnetic measurements [PDF]
Annales Geophysicae, 1998 In the framework of the French participation in the International Equatorial Electrojet Year (IEEY), ten magnetotelluric stations were installed between November 1992 and November 1994 along a 1200-km-long meridian profile, between Lamto (latitude 6.2°
V. Doumouya +4 more
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French participation in the International Equatorial Electrojet Year [PDF]
Annales Geophysicae, 1998 Without abstractAcknowledgements. The IEEY studies in the African sector were made possible by the participation of a large number of institutes. Funding was provided by the Ministère Français de la Coopération (Département de la Recherche et des ...
Y. Cohen
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Signatures of storm sudden commencements in geomagnetic H, Y and Z fields at Indian observatories during 1958−1992 [PDF]
Annales Geophysicae, 1999 The work describes an intensive study of storm sudden commencement (SSC) impulses in horizontal (H), eastward (Y) and vertical (Z) fields at four Indian geomagnetic observatories between 1958–1992. The midday maximum of ΔH has been shown to exist even
R. G. Rastogi
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Earth and Space Science, Volume 13, Issue 4, April 2026.Abstract We present a new empirical vertical E×B $\mathbf{E}\times \mathbf{B}$ drift model developed using ground‐based magnetometer, radar, and satellite data over equatorial latitude regions. We first implement an algorithm relating magnetometer derived equatorial electrojet (EEJ) and vertical ion plasma drift (equivalent to vertical E×B $\mathbf{E ...
John Bosco Habarulema +9 more
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Up-down asymmetry of type I plasma waves in the equatorial electrojet region [PDF]
Annales Geophysicae, 1997 The up-down asymmetry of the type I plasma waves in the equatorial electrojet region during daytime is investigated. It is shown that the asymmetry is exhibited not only in the vertical direction but also is manifested in the oblique direction (24.6 ...
S. Ravindran, B. V. K. Murthy
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Sq and EEJ—A Review on the Daily Variation of the Geomagnetic Field Caused by Ionospheric Dynamo Currents [PDF]
, 2016 A record of the geomagnetic field on the ground sometimes shows smooth daily variations on the order of a few tens of nano teslas. These daily variations, commonly known as Sq, are caused by electric currents of several μA/m^2 flowing on the sunlit side ...
Maute, Astrid, Yamazaki, Yosuke
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Imprint of the Quasi‐Biennial Oscillation on the Ionosphere and Thermosphere
Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.Abstract The Quasi‐Biennial Oscillation (QBO) is a dominant mode of stratospheric variability and is known to modulate the variability of the ionosphere‐thermosphere (IT) system. However, the extent of its influence on the ionosphere‐thermosphere system remains uncertain due to weak signals and confounding with similar periodicities in solar flux.
D. Singh, L. P. Goncharenko, S. R. Zhang
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Abrupt Disappearance of Plasmaspheric Hiss Inside the Magnetic Dip
Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract Plasmaspheric hiss plays an important role in radiation belt electron dynamics, and its excitation and propagation have long attracted attention. During a substorm, Van Allen Probe B observed the disappearance of plasmaspheric hiss at the magnetic dip, which was driven by the injection of energetic protons.
Yan Zhuang +6 more
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