Results 131 to 140 of about 369 (184)

Classes of the Equatorial Electrojet

2005
The equatorial electrojet signal recorded on the Overhauser Magnetometer (OVM) on board CHAMP can be divided into four classes: the classical electrojet (EEJ), the counter electrojet (CEJ), no electrojet (NEJ) and a new term, formation of the electrojet (FEJ).
Heather McCreadie
exaly   +2 more sources

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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.
openaire   +1 more source

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
openaire   +1 more source

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.
openaire   +2 more sources

The equatorial electrojet

Reviews of Geophysics, 1981
An integrated treatment of observations and models of the undisturbed equatorial electrojet is presented. Previous reviews have concentrated on particular aspects of the electrojet phenomenon, such as ground magnetic variations, the counterelectrojet, or E region electron density irregularities and associated plasma instabilities.
openaire   +1 more source

Equatorial electrojet and regular daily variation S—I. A determination of the equatorial electrojet parameters

Journal of Atmospheric and Terrestrial Physics, 1976
Abstract Records for 171 quiet (or almost quiet) days are available in a chain of six temporary stations and in three permanent observatories, spreading over 3000 km in latitude in Central Africa. The regular daily variation S R is defined by the deviation from the night level in each component.
O Fambitakoye, P.N Mayaud
openaire   +1 more source

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