Physics
Scientific paper
Jan 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001adspr..28.1581s&link_type=abstract
Advances in Space Research, Volume 28, Issue 11, p. 1581-1586.
Physics
Scientific paper
Multiple inverted-V structures are commonly observed on the same auroral zone crossing by a low altitude orbiting satellite. They appear grouped and apparently result from an ionospheric and/or magnetospheric mechanism of stratification. AUREOL-3 satellite observations were analyzed to study their properties in the framework of the ionosphere-magnetosphere coupling model proposed by Tverskoy (1982). This model predicts some natural periodicity in the electrostatic potential profile in the order of 100-200 km at ionospheric altitudes that could account for oscillations experimentally observed in the auroral zone, such as successive inverted-Vs. These oscillations may naturally result when the initial pressure gradients needed to generate a large-scale field-aligned current have a sufficiently wide equatorial scale, of about 1 RE or more.
Antonova Elizabeth E.
Bosqued Jean Michel
Kovrazhkin R. A.
Luízar O.
Stepanova M.
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