Substorm introduction of 1-keV or less magnetospheric ions into the inner plasmasphere

Details Substorm introduction of 1-keV or less magnetospheric ions into the inner plasmasphere Substorm introduction of 1-keV or less magnetospheric ions into the inner plasmasphere

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....9111133n&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 91, Oct. 1, 1986, p. 11133-11145.

Computer Science

Sound

14

Auroral Ionization, Ion Injection, Magnetospheric Ion Density, Particle Precipitation, Plasmasphere, Polar Substorms, Satellite Sounding, Space Plasmas, Electron Precipitation, Kp Index, Northern Hemisphere, Plasma Layers, Temporal Distribution

Scientific paper

Observations from the DMSP satellites F6 and F7 are used to describe in detail a process whereby prolonged magnetospheric substorms can inject ions of up to 1 keV from near the earthward edge of the plasma sheet to deep into the plasmasphere. Such injections occur from somewhere postmidnight until about 0830 MLT. This agrees well with the cross-L shell convection patterns of low-energy plasma deduced by Carpenter et al. (1979) based on storm line observations of whistlers. Subsequently, these ions begin to corotate, and latitudinally narrow well-isolated structures of ion precipitation are formed that can persist at low altitudes for about a day.

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