Computer Science
Scientific paper
Jan 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984p%26ss...32...47m&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 32, Jan. 1984, p. 47-61.
Computer Science
7
Atmospheric Models, Convection Currents, F Region, Ionospheric Electron Density, Plasma Currents, Plasma Drift, Diurnal Variations, Geomagnetism, Incoherent Scatter Radar, Ionospheric Drift
Scientific paper
High latitude ionospheric model predictions are compared with the diurnal variations of plasma convection velocities and electron densities observed at Chatanika, Alaska, on geomagnetically quiet and disturbed days near equinox. Since the time-dependent variation of the magnetospheric electric field was not known, plasma drift velocities and ion densities are calculated for two different convection-precipitation models, each of which corresponds to a different level of magnetic activity. Model calculations for the magnetically quiet day produced plasma drift velocities and electron densities that were in good agreement, both qualitatively and quantitatively, with the measurements. The two models have demonstrated the relative sensitivity of the high latitude ionosphere to different combinations of magnetospheric convection and induced vertical drifts associated with thermospheric winds.
Murdin J.
Schunk Robert W.
Sojka Jan J.
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