Physics
Scientific paper
Mar 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982kosis..20..304l&link_type=abstract
Kosmicheskie Issledovaniia, vol. 20, Mar.-Apr. 1982, p. 304-308. In Russian.
Physics
1
Electric Fields, Field Aligned Currents, Ionospheric Conductivity, Ionospheric Currents, Polar Caps, Terminator Lines, Daytime, Electric Potential, Night Sky, Space Plasmas
Scientific paper
An analysis is presented of the effect of the terminator on the electric field and field-aligned currents in the polar-cap ionosphere. Plasma convection lines are found to stretch jointly to the morning sector and to undergo a discontinuity at the terminator. When Hall and Pedersen conductivities are equal, the convection lines approach the terminator at an angle of 45 deg. If there is a uniform electric field within the polar cap, there should arise an additional system of field-aligned currents, flowing onto the terminator within the polar cap and flowing out of the ionosphere at the daytime boundary of the polar cap. In addition, a potential difference should arise between the equator and the pole.
Liatskii V. B.
Maltsev Iu. P.
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