Physics
Scientific paper
Mar 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....96.3487s&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 96, March 1, 1991, p. 3487-3495.
Physics
55
Atmospheric Boundary Layer, Convection Currents, Earth Ionosphere, Ionospheric Currents, Magnetosphere-Ionosphere Coupling, Boundary Conditions, Electric Fields, Field Aligned Currents, Magnetopause, Solar Wind
Scientific paper
A self-consistent model of global convection circuits which satisfies the ionospheric current-voltage relationship is constructed by linking a high-latitude boundary layer (HBL) voltage generator to a low-latitude boundary layer (LBL) current generator. The model uses the convection electric field that the ionosphere receives from the HBL to determine two boundary conditions to the equations that govern viscous LBL-ionosphere coupling, providing the needed self-consistent coupling between the two boundary layers and fully specifying the solution for the viscous LBL-ionosphere coupling equations. The solution indicates that the LBL needs only a tenth of the voltage that spans the HBL to provide the current required by the ionospheric Ohm's law. The solution also provides the latitude profiles of the ionospheric electric field, parallel currents, and parallel potential.
Lotko William
Siscoe George L.
Sonnerup Bengt U. Ö.
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