Mathematics
Scientific paper
Apr 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993angeo..11..263b&link_type=abstract
Annales Geophysicae (ISSN 0992-7689), vol. 11, no. 4, p. 263-272.
Mathematics
59
Atmospheric Models, Equatorial Atmosphere, F Region, Geomagnetism, Plasmasphere, Continuity (Mathematics), Coordinate Transformations, Ionospheric Electron Density, Magnetic Field Configurations, Meridional Flow
Scientific paper
A fully time-dependent mathematical model of the earth's ionosphere and plasmasphere is presented. In the model the ions are O(+), H(+), He(+), N2(+), O2(+) and NO(+), and the earth's magnetic field is represented by an eccentric dipole. Using meridional and zonal neutral air wind velocities from the HWM90 thermospheric wind model it is found that the modelled electron concentration values are in reasonable accord with observations made during the daytime at Jicamarca, while the modelled values at night are much too large. Close agreement in the modelled and observed electron concentration values is obtained during nighttime when the neutral air wind velocities are taken to be zero during the period 20:00-04:00 LT. It is concluded that there are significant differences in the night-time neutral air wind velocities given by the HWM90 thermospheric wind model and those occurring at equatorial latitudes in the South American longitude zone.
Bailey Graham J.
Rippeth Y.
Sellek R.
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