Lower F-region barium release experiments at a sub-auroral location

Details Lower F-region barium release experiments at a sub-auroral location Lower F-region barium release experiments at a sub-auroral location

Jun 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975p%26ss...23..973b&link_type=abstract

Planetary and Space Science, vol. 23, June 1975, p. 973-983.

Computer Science

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Barium Ion Clouds, F Region, Ionospheric Drift, Ionospheric Sounding, Atmospheric Models, Auroral Zones, Computerized Simulation, Electric Fields, Ionospheric Conductivity, Magnetic Measurement

Scientific paper

A series of barium release experiments have been conducted at altitudes near 160 km from the R. A. Hebrides Range (L = 3.5). A predominantly westward neutral drift has been observed for all the releases conducted during evening twilight. The development of the ionized clouds are characterized, in this situation, by a lack of separation from the neutral release material and by a rapid onset of the formation of structure. The implications of these features are discussed and numerical modelling used to describe the steepening and striation onset in the ion clouds. It is concluded that the most likely striation sizes are those which are of sufficiently small scale to be electrostatically isolated from other regions of the ionosphere but not so small as to be diffusively dispersed.

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