Radial profiles of quiet time magnetospheric parameters

Details Radial profiles of quiet time magnetospheric parameters Radial profiles of quiet time magnetospheric parameters

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....9719325l&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. A12, p. 19,325-19,332.

Physics

98

Earth Magnetosphere, Field Aligned Currents, Ion Temperature, Magnetic Field Configurations, Plasma Pressure, Current Density, Geomagnetism, Plasma-Electromagnetic Interaction, Solar Wind

Scientific paper

The quiet time magnetosphere is studied using ion measurements covering energies from about 1 keV to about 4 MeV from selected passes of the Charge Composition Explorer during low geomagnetic activity. The quiet time plasma pressure in the midnight sector was found to be comparable to that deduced by Spence et al. (1989) and Kan et al. (1992) from inverting the magnetic field models of Tsyganenko and Usmanov (1982) and Tsyganenko (1987). The radial profile of the total plasma pressure exhibited a peak at L = 3-4 and decreased monotonically from L = 4 and L = 9. Contrary to theoretical expectations for the magnetospheric closure of the region 2 field-aligned current system, no large-scale earthward decrease in plasma pressure was found to occur in these outer L shells.

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