Physics
Scientific paper
Jan 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87..171s&link_type=abstract
Journal of Geophysical Research, vol. 87, Jan. 1, 1982, p. 171-180.
Physics
73
Anisotropic Media, Earth Ionosphere, Electron Plasma, Plasma Temperature, Polar Regions, Proton Energy, Electron Energy, Geomagnetism, Hydrogen Ions, Oxygen Ions, Plasma Conductivity, Steady State, Subsonic Flow, Supersonic Flow, Temperature Distribution
Scientific paper
The steady state flow of a fully ionized H(+)-O(+) electron plasma along geomagnetic field lines in the high-latitude topside ionosphere is studied. The theoretical formulation is based on a 13-moment system of transport equations, and allows for different species temperatures parallel and perpendicular to the geomagnetic field and nonclassical heat flows. For subsonic and supersonic flows, an appreciable H(+) temperature anisotropy occurs at all altitudes above 1500 km, and tends to be regulated at high altitudes. The direction of the temperature anisotropy is related to the direction of the H(+) heat flow to some extent; for supersonic flow an upward flow of heat from the lower ionosphere is required, while for subsonic flow solutions can be obtained with a downward H(+) heat flow. For subsonic flow, H(+)-H(+) collisions have an important effect on the H(+) stress and heat flow balance at all altitudes between 1500 and 12,000 km.
Schunk Robert W.
Watkins David S.
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