Results 171 to 180 of about 1,267 (222)

Equatorial electrojet and radio scintillations

Journal of Atmospheric and Terrestrial Physics, 1983
Abstract It is shown that the day-time scintillations of VHF radio waves at the equatorial station, Huancayo, are very small, of the order of 1–2 dB peak, during the equatorial electrojet condition. If the event of complete or partial counter-electrojet occurring either on quiet or during disturbed conditions is followed by the occurrence of ...
Rastogi, R. G.
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Some features of the equatorial electrojet

Planetary and Space Science, 1969
The equivalent circuit method of Stening (1968) is used to calculate current distributions in the vicinity of the equatorial electrojet. Both height and latitude profiles are obtained which show reasonable agreement with observations. The tube of magnetic force model employed in the calculations is useful in understanding some of the variations in the ...
Stening R.J.
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The equatorial electrojet during geomagnetic storms and substorms [PDF]

Journal of Geophysical Research: Space Physics, 2015
The climatology of the equatorial electrojet during periods of enhanced geomagnetic activity is examined using long-term records of ground-based magnetometers in the Indian and Peruvian regions.
Yosuke Yamazaki, M J Kosch
exaly   +2 more sources

Quasi‐6‐Day Wave Modulation of the Equatorial Electrojet

Journal of Geophysical Research: Space Physics, 2018
The equatorial electrojet is an enhanced eastward current in the dayside E region ionosphere flowing along the magnetic equator. The equatorial electrojet is highly variable as it is subject to various forcing mechanisms including atmospheric waves from ...
Yosuke Yamazaki, Claudia Stolle, Jürgen Matzka   +2 more
exaly   +2 more sources

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Subsolar elevation of the equatorial electrojet

pure and applied geophysics, 1989
The subsolar elevation of the equatorial electrojet has been produced from satellite solstitial data available from 09 to 15 hr LT using a new approach with the general style of the overhead equivalent current system. It shows the bunching of the current around the dip equator; the return currents of the equatorial electrojet close to the flanks of the
C. A. Onwumechili, P. C. Ozoemena
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On the equatorial electrojet

Journal of Geophysical Research, 1966
During 29 crossings of the geomagnetic dip equator near 80°W longitude in February and July 1964, airborne equipment obtained cross sections of geomagnetic field intensity and ionospheric characteristics. The magnetic anomalies due to the electrojet and the amplitudes of Esq echoes show fair correlation of details and fair-to-good correlation of large ...
G. J. Gassmann, R. A. Wagner
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The Equatorial Electrojet

pure and applied geophysics, 1989
The typical quiet day variations of the equatorial electrojet (EEJ) current intensity with time of the day, season, sunspot number, and geomagnetic latitude are presented in terms of the corresponding variations of ΔH which is the deviation of the horizontal component (H) of the geomagnetic field from its steady nighttime level.
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Instabilities in the equatorial electrojet

Journal of Geophysical Research, 1973
From recent radar data, we draw two new conclusions. First, the so-called magnetic ‘threshold effect’ has little physical significance at radar frequencies of 50 MHz or less and results simply from the way in which past data have been presented. At these frequencies, type II irregularities give strong echoes for electron drift velocities well below the
D. T. Farley, B. B. Balsley
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Equatorial drift and the electrojet

Journal of Geophysical Research, 1963
Apparent horizontal east-west drift velocities in the F layer were measured near the magnetic equator at Tamale in northern Ghana by the spaced- receiver, pulse-fading method. These velocities are compared with changes in the horizontal magnetic field strength in the daytime.
D. G. Osborne, N. J. Skinner
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The Equatorial Electrojet

2021
The equatorial electrojet (EEJ) represents a ribbon of intense electric current flowing in the ionospheric E region on the dayside along the dip-equator. The primary reason for the high current density is the geometry of the geomagnetic field with its horizontal field lines at these latitudes.
Lühr, H., Alken, P., Zhou, Y.
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