Physics
Scientific paper
Aug 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.7513p&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Aug. 1, 1985, p. 7513-7523.
Physics
65
Auroral Arcs, Doppler Radar, Magnetohydrodynamic Stability, Morning, Plasma Drift, Radio Interferometers, Kelvin-Helmholtz Instability, Very High Frequencies
Scientific paper
A description is given of E region auroral plasma irregularities associated with an intense auroral morning arc observed over Fort Churchill by radar. The observations are compared with data from an all-sky camera (ASC) operated at Fort Churchill by the National Research Council of Canada. The particular event described was chosen because of the rapid variation in structure and motion of the arc as it traveled through the radar beam. The horizontal vector electron drift velocity and electric field along the poleward boundary of the morning discrete auroral arc was successfully measured with a radar interferometer. This instrument provided information concerning the temporal and spatial structure of the electrostatic plasma turbulence in the arc. The observations are described.
Farley Donald T.
Providakes James
Riggin Dennis
Swartz Wesley E.
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