Convective transport of plasma in the inner Jovian magnetosphere

Details Convective transport of plasma in the inner Jovian magnetosphere Convective transport of plasma in the inner Jovian magnetosphere

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....95.4017l&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 95, April 1, 1990, p. 4017-4026.

Physics

12

Convective Flow, Jupiter Atmosphere, Magnetohydrodynamic Flow, Planetary Magnetospheres, Transport Theory, Boundary Conditions, Boundary Layer Flow, Current Density, Io, Plasma Layers, Jupiter, Magnetosphere, Convection, Transport, Plasma, Plasma Torus, Theoretical Studies, Mathematical Models, Boundaries, Acceleration, Electrical Field, Coriolis Force, Longitude, Symmetry, Timescale, Calculations, Diagrams, Flow, Current, Corotation, Ions

Scientific paper

The transport of plasma in the inner Jovian magnetosphere is investigated according to the corotating convection model of Hill et al. (1981), emphasizing mathematical aspects of the theory. A simplified but physically plausible boundary condition at the inner Io torus, representing a 5 percent density enhancement of S(+) ions in an 'active sector' that is fixed in Jovian (system III) longitude is employed. The convection electric field pattern resulting from this longitudinal mass anomaly alone is investigated, and then the theory to include the effects of Coriolis force and plasma acceleration is generalized. It is found that even a small (about 5 percent) longitudinal asymmetry of the inner torus produces a convection system capable of removing torus plasma from the magnetosphere on a time scale of order one month.

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