Auroral vector electric field and particle comparisons. I - Preliminary convection topology

Details Auroral vector electric field and particle comparisons. I - Preliminary convection topology Auroral vector electric field and particle comparisons. I - Preliminary convection topology

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jgr....82.2227m&link_type=abstract

Journal of Geophysical Research, vol. 82, June 1, 1977, p. 2227-2234. Research supported by the Norges Teknisk-Naturvitenskapel

Computer Science

Sound

6

Auroral Arcs, Electric Fields, Electron Precipitation, Night Sky, Rocket Sounding, Auroral Zones, Convective Flow, Ionospheric Sounding, Light Emission, Photometry, Topology

Scientific paper

Data obtained by Polar 3, launched from northern Norway January 27, 1974, are interpreted. The rocket, which traversed nearly 3 deg of latitude, crossed over a stable IBC II auroral arc in the positive bay region and continued north to a convection boundary which has been identified as the Harang discontinuity. Measurements of the complete electric field vector, of energetic electrons, and of auroral emissions were used to study the convection topology in the premagnetic midnight region. The inverted V nature of the electron precipitations at the convection boundary, compared with the lack of such structure over the arc which was within the positive bay region, is thought to indicate that auroral arcs are likely to be associated with inverted V type precipitation only at or poleward of convection boundaries and their eddy structures.

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