Theoretical predictions for ion composition in the high-latitude winter F-region for solar minimum and low magnetic activity

Details Theoretical predictions for ion composition in the high-latitude winter F-region for solar minimum and low magnetic activity Theoretical predictions for ion composition in the high-latitude winter F-region for solar minimum and low magnetic activity

Apr 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.2206s&link_type=abstract

Journal of Geophysical Research, vol. 86, Apr. 1, 1981, p. 2206-2216.

Computer Science

Sound

75

Atmospheric Models, F Region, Ionospheric Composition, Ionospheric Ion Density, Polar Regions, Solar Terrestrial Interactions, Circular Orbits, Helium Ions, Magnetoactivity, Nitric Oxide, Nitrogen Ions, Oxygen Ions, Particle Mass, Prediction Analysis Techniques, Satellite Sounding, Space Plasmas, Winter

Scientific paper

A simple plasma convection model is combined with an ionospheric-atmospheric density model in order to study the ion composition in the high-latitude winter F-region at solar minimum for low geomagnetic activity. The numerical study produces time-dependent, three-dimensional ion density distributions for the ions NO(+), O2(+), N2(+), O(+), N(+), and He(+). The high-latitude ionosphere above 54 deg N magnetic latitude is covered at altitudes between 160 and 800 km for one complete day. Among the conclusions are the following: the ion composition varies significantly with latitude, local time, altitude, and universal time; the variations in the ion composition with latitude and local time are in good agreement with the Atmosphere Explorer measurements both quantitatively and qualitatively; and at times and at certain locations the molecular ion density can be comparable to the O(+) density at 300 km, and at 200 km the O(+) density can be comparable to the molecular ion density.

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