Can the high latitude ionosphere support large field-aligned ion drifts?

Details Can the high latitude ionosphere support large field-aligned ion drifts? Can the high latitude ionosphere support large field-aligned ion drifts?

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jatp...50..141s&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 50, Feb. 1988, p. 141-152.

Physics

3

Earth Ionosphere, Ion Motion, Plasma Drift, Tropical Regions, Velocity Distribution, Vertical Distribution, Atmospheric Models, Ionospheric Electron Density, Oxygen Ions, Temporal Distribution, Three Dimensional Models

Scientific paper

A three-dimensional time-dependent model of the ionosphere is used to examine recent results on vertical drift velocities and electron densities in the high latitude ionosphere. Upper limits for the downward ion velocity were found to be smaller than those obtained from previous measurements. The downward force in the model was arbitrarily increased to try to account for the narrow electron density profiles. It is noted that if the common volume measurement is made in a region of O(+) precipitation then the line profile would not be Doppler shifted when viewed off-zenith, and small field-aligned velocities and narrow profile widths would result.

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