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plasmasphere |
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plasmasphere [′plazĀ·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. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | Extrapolating this mechanism to the terrestrial magnetosphere, Kronberg and colleagues propose that under certain conditions, periodic magnetospheric substorms at Earth may be driven internally by plasma eroded from the plasmasphere, a region of Earth's magnetosphere. 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. |
plasmasphere |
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