Ground and satellite observations of an auroral event at the cusp/cleft equatorward boundary

Details Ground and satellite observations of an auroral event at the cusp/cleft equatorward boundary Ground and satellite observations of an auroral event at the cusp/cleft equatorward boundary

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....97.8685s&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. A6, June 1, 1992, p. 8685-8691.

Physics

17

Atmospheric Physics, Auroras, Daytime, Polar Cusps, Satellite Observation, Field Aligned Currents, Magnetic Field Reconnection, Magnetopause, Magnetosphere-Ionosphere Coupling, Particle Precipitation

Scientific paper

Detailed ground-based optical observations of a characteristic transient auroral event in the late prenoon sector of cusp/cleft ionosphere are combined with the particle precipitation/field-aligned current data from a polar-orbiting satellite (DMSP F7) that passed through the same event at about 1000 MLT. The combined observations provided a 'snapshot' latitude profile of the ion and electron precipitation, including the transient auroral event and the more persistent particle environment. The former was found to be magnetically connected with the low-latitude boundary layer and the latter with the plasma mantle.

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