A unified theory of ionosphere-plasmasphere transport of superthermal electrons

Publication: Research - peer-reviewJournal article – Annual report year: 1994

Without internal affiliation

  • Author: Khazanov, G.V.

    University of Michigan, United States

  • Author: Neubert, Torsten

    University of Michigan

  • Author: Gefan, G.D.

    Irkutsk Polytechnical Institute, Russian Federation

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We present a model of suprathermal electrons in the ionsophere and plasmasphere based on a solution to the kinetic equation along the entire length of a closed magnetic field line, that is, simultaneously for the two conjugate ionospheres and the plasmasphere. We call this the unified approach. It allows the determination of the distribution in energy and pitch-angle of photoelectrons along the complete length of the field line thereby avoiding the introduction of artificial boundaries between the ionosphere and magnetosphere and, consequently, avoids problems introduced by the uncertainty of these boundary conditions. In addition, it automatically accounts for backscattered electrons in the atmosphere and plasmasphere, and avoids splitting photoelectrons into a loss-cone and a trapped population. The method is not limited to specific situations such as conjugated sunrise or symmetrical illumination of hemispheres, but is equally applicable to arbitrary illumination conditions.
Original languageEnglish
JournalI E E E Transactions on Plasma Science
Issue number2
Pages (from-to)187-198
StatePublished - Apr 1994
Externally publishedYes
CitationsWeb of Science® Times Cited: 29
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ID: 10135670