Spatial relationship of field-aligned currents, electron precipitation, and plasma convection in the auroral oval

Details Spatial relationship of field-aligned currents, electron precipitation, and plasma convection in the auroral oval Spatial relationship of field-aligned currents, electron precipitation, and plasma convection in the auroral oval

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....88.7131c&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 88, Sept. 1, 1983, p. 7131-7141.

Physics

7

Atmospheric Electricity, Auroral Zones, Birkeland Currents, Electron Precipitation, Field Aligned Currents, Magnetoplasmadynamics, Space Plasmas, Convection, Explorer 51 Satellite, Magnetometers

Scientific paper

Observations reported by Winningham et al. (1975) have established that the auroral oval mapped to the magnetosphere along closed field lines divided the oval into two distinct regions of particle precipitation. In order to determine relationships between field-aligned current, convection, and particle precipitation, simultaneous measurements of all quantities are needed. The studies of Bythrow et al. (1980, 1981) have utilized Atmosphere Explorer C data for sunlit passes of the high-latitude ionosphere. The addition of magnetometer information for the eclipsed high-latitude passes of the Atmospheric Explorer C spacecraft makes it possible to make simultaneous measurements of Birkeland currents, plasma convection, and electron precipitation in the nightside auroral oval and polar cap. The present investigation provides the results of such observations, discusses the observed relationships, and attempts to correlate boundaries.

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