Ionospheric convection inferred from interplanetary magnetic field-dependent Birkeland currents

Details Ionospheric convection inferred from interplanetary magnetic field-dependent Birkeland currents Ionospheric convection inferred from interplanetary magnetic field-dependent Birkeland currents

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jgr....93.1909r&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 93, March 1, 1988, p. 1909-1921.

Physics

15

Birkeland Currents, Convection Currents, Interplanetary Magnetic Fields, Ionospheric Currents, Computerized Simulation, Ionospheric Conductivity, Polar Caps

Scientific paper

Computer simulations of ionospheric convection have been performed, combining empirical models of Birkeland currents with a model of ionospheric conductivity in order to investigate IMF-dependent convection characteristics. Birkeland currents representing conditions in the northern polar cap of the negative IMF By component are used. Two possibilities are considered: (1) the morning cell shifting into the polar cap as the IMF turns northward, and this cell and a distorted evening cell providing for sunward flow in the polar cap; and (2) the existence of a three-cell pattern when the IMF is strongly northward.

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