Equatorial electrojet in east Brazil longitudes
نویسندگان
چکیده
منابع مشابه
A Comparison of Equatorial Electrojet in Peru and East Brazil
The paper describes the characteristics of the equatorial electrojet at Huancayo (HUA, 12.1 o S, 75.3 o W, inclination 1.5 o N, declination 1.0 o E) in western side of South America, where the geomagnetic field is aligned almost along the geographic meridian, and at Itinga (ITI, 4.3 o S, 47.0 o W, inclination 1.4 o N, declination 19.3 o W) in eastern part of South America, where the geomagnetic...
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Huancayo is the only equatorial electrojet station where the daytime increase of horizontal geomagnetic ®eld (H) is associated with a simultaneous increase of eastward geomagnetic ®eld (Y). It is shown that during the counter electrojet period when DH is negative, DY also becomes negative. Thus, the diurnal variation of DY at equatorial latitudes is suggested to be a constituent part of the equ...
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The effects of large winds on the low-latitude E region ionosphere and the equatorial electrojet in particular are analyzed theoretically, computationally, and experimentally. The principles that govern the relationship between electric fields, currents, and winds in steady flows in the ionosphere are reviewed formally. A three-dimensional numerical model of low latitude ionospheric electrostat...
متن کاملMultiscale equatorial electrojet turbulence: Energy conservation, coupling, and cascades in a baseline 2-D fluid model
Progress in understanding the coupling between plasma instabilities in the equatorial electrojet based on a unified fluid model is reported. Simulations with parameters set to various ionospheric background conditions revealed properties of the gradient-drift and Farley-Buneman instabilities. Notably, sharper density gradients increase linear growth rates at all scales, whereas variations in cr...
متن کاملUp-down asymmetry of type I plasma waves in the equatorial electrojet region
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° o zenith). The results further indicate the eect of neutral winds on the phase velocities of type I plasma waves.
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ژورنال
عنوان ژورنال: Journal of Earth System Science
سال: 2010
ISSN: 0253-4126,0973-774X
DOI: 10.1007/s12040-010-0035-4