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A flow of intense electric current that moves from west to east in the ionosphere above the earth's magnetic equator.


(General Physics) a narrow belt of fast-moving ions in the ionosphere, under the influence of the earth's magnetic field, causing auroral displays


(ɪˈlɛk trəˌdʒɛt)

a current of ions in the upper atmosphere that moves with respect to the surface of the earth and causes various auroral phenomena.
References in periodicals archive ?
His career in theoretical physics started in space, with polar and auroral electrojets, later going to parametric instabilities and laser theory.
Known as electrojets, these high-speed winds may explain how energy from the auroral regions spreads around the planet.
By analyzing the infrared glow from these ions, Steve Miller of University College London and his colleagues measured the velocity of the electrojets.