plasmasphere


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plasmasphere

(plaz -mă-sfeer) A small toroidal region of plasma, primarily protons and electrons, that lies within the Earth's magnetosphere above the ionosphere. The plasma is produced by the action of the Sun's ultraviolet radiation and X-rays on molecules, etc., in the upper atmosphere. The plasmasphere is bounded by the plasmapause, where the plasma density drops abruptly.

plasmasphere

[′plaz·mə‚sfir]
(geophysics)
A region of relatively dense, cold plasma surrounding the earth and extending out to altitudes of approximately 2 to 6 earth radii, composed predominantly of electrons and protons, with thermal energies not exceeding several electronvolts.
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It orbited the earth around the north and south poles at an altitude of 650 kilometres, producing the first comprehensive images of the plasma in the earth's inner magnetosphere, or plasmasphere. Though astrophysicists know that the magnetospehere responds to solar winds when those winds reach speeds of several hundred kilometers per hour, they're still trying to "understand the actual mechanism in fine detail," Hayes said.
Nevertheless, the goal remains to create a world-class, operational solar radar capable of monitoring not only solar echoes despite noisy radio bursts but also the ionosphere, plasmasphere, radiation belts, and the magnetosphere.
Jakowski and S.Heise, "A new method for reconstruction of the vertical electron density distribution in the upper ionosphere and plasmasphere", Journal of Geophysical Research, Vol.
In Part 2 the system will be expanded to include a far wider set of models of the solar corona the interplanetary medium the Earth s magnetosphere plasmasphere radiation belts ionosphere and thermosphere.
Another scenario is that the giant cloud of cold, electrically charged gas called the plasmasphere, which begins about 600 miles above Earth and stretches thousands of miles into the outer Van Allen belt, is scattering the electrons at the boundary with low frequency, electromagnetic waves that create a plasmapheric "hiss," said Baker.
The Earth's ionosphere model: international reference ionosphere (IRI) model and extensions to the plasmasphere. * BS EN 50125-1 Railway applications.
It also carries a telescope to observe the dense torus of ion-ized gas encircling Earth, called the plasmasphere.
Warnant, "A new method for reconstruction of the vertical electron density distribution in the upper ionosphere and plasmasphere," Journal of Geophysical Research: Space Physics, vol.
The report said that for the first time in human history, a telescope will also be set up on the moon to observe the plasmasphere over the Earth and survey the moon surface through radar.
Geomagnetic Storm Effects on the Topside Ionosphere and Plasmasphere: A Compact Tutorial and New Results.
-- Discoveries: plasmaspheric shoulders and notches, proton auroras in unexpected places, surprisingly slow plasmasphere rotation, a hot oxygen geocorona and a secondary interstellar neutral atom stream.
Another IMAGE device has taken the first global picture of the electrically charged layer, called the plasmasphere, that extends into space from Earth's upper atmosphere.