Computer Science
Scientific paper
Jul 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985p%26ss...33..807g&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 33, July 1985, p. 807-815.
Computer Science
13
Atmospheric Composition, F Region, Metal Ions, Midlatitude Atmosphere, Atmospheric Models, Explorer 51 Satellite, Iron, Night Sky, Solar Activity Effects, Spatial Distribution
Scientific paper
The results of a survey of metallic ions detected by the Bennett Ion Mass Spectrometer flown on the Atmospheric Explorer satellites are presented and discussed. The nighttime distribution of these ions observed in the F-region at middle latitudes can be accounted for by the presence of fast upward Pederson ion drifts that are produced by intense poleward-directed electric fields with magnitudes typical of those defining subauroral drift events. Such fields, which arise in the vicinity of the main electron density trough at night, result in the rapid movement of long-lived meteoric ions upwards out of their source region into the F-region. Neutral wind drag by the equatorially-directed nightside neutral wind component can lift the ions higher along the field lines until the downward drag of major ion diffusion forces them to layer under F-max.
Grebowsky Joseph M.
Pharo W. III M.
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