Results 191 to 200 of about 5,979 (206)

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 ...
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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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Multifractal Structure of Auroral Electrojet Index Data

Physical Review Letters, 1996
Using a multifractal approach, based on ``singularity analysis,'' we investigate the scaling properties of the auroral electrojet index (AE) time series. The existence of a multifractal structure in the AE time series is the signature of the occurrence of ``intermittence,'' which can be interpreted as an indication of turbulence in magnetospheric ...
, Consolini, , Marcucci, , Candidi
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Pulsed Artificially Created Electrojet

2010
Abstract : The objective of the PACE project is to determine the HED moment required to achieve nT magnetic field at distances from .5-1 Mm from the location of the ground based HED at locations near the magnetic equator. Significant advantage can be gained if the HED radiates in a sneak-through or partial sneak-through mode, in which the observed ...
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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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Critical problems of equatorial electrojet

Advances in Space Research, 1992
This paper describes the general features of the equatorial electrojet current over the magnetic equator based on ground geomagnetic observatory data, rocket borne magnetometer data, ground based HF and VHF sounding of the atmosphere. Also are described its association with magnetosphere currents, interplanetary magnetic field charges and with ...
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What drives the equatorial electrojet?

Journal of Atmospheric and Terrestrial Physics, 1995
Abstract There is a controversy over whether the equatorial electrojet is a separate system with its own return currents at low latitudes or it is an integral part of the Sq current system driven by emfs mostly beyond the Sq focus. The arguments of Onwumechili (1989) in support of the first hypothesis are examined, but the second idea is preferred ...
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Neutral winds and electrojet irregularities

Journal of Geophysical Research, 1975
The influence of the neutral winds on charged particle motions in both the equatorial and the auroral electrojet region is studied as a causal mechanism of the phase velocity change of electrojet irregularities. It is found that although the way they are affected is quite different, both electrons and ions undergo the same velocity change in the ...
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Microwave Electrojet Magnetogram (MEM) Instrument for the Electrojet Zeeman Imaging Explorer (EZIE) Mission

IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022
Sharmila Padmanabhan, Sidharth Misra, Pekka Kangaslahti, Oliver Montes, Javier Bosch-Luis, Rick Cofield, Isaac Ramos, Sam Yee   +7 more
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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).
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