Physics
Scientific paper
Dec 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85.6811s&link_type=abstract
Journal of Geophysical Research, vol. 85, Dec. 1, 1980, p. 6811-6818.
Physics
12
Birkeland Currents, Convection Currents, Current Sheets, Electric Fields, Electron Flux Density, Ionospheric Conductivity, Polar Regions, Satellite Observation, Atmospheric Electricity, Auroral Zones, Field Aligned Currents, Geomagnetism, Plasma Currents, Polar Caps
Scientific paper
Electric and magnetic fields and electron fluxes measured from the S3-2 satellite were analyzed to determine relationships between convective electric fields, Birkeland currents, and ionospheric conductivity at high altitudes. It was found that Birkeland current sheets are present which deflect the magnetic field in the direction of the convection when the ionospheric activity is high; no large-scale antisunward deflection of the magnetic field occurs in the polar cap under winter conditions of a dark polar ionosphere. The data indicate that region 1 currents are greater than region 2 currents, that an extra set of field-aligned currents exists which is detached from those of region 1 and is entirely poleward of the convective electric field reversal.
Burke William J.
Gussenhoven Susan M.
Hardy David A.
Kelley Michael C.
Rich Frederic J.
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