Characteristics of auroral electron precipitation on the morningside

Details Characteristics of auroral electron precipitation on the morningside Characteristics of auroral electron precipitation on the morningside

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....9111225l&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 91, Oct. 1, 1986, p. 11225-11234. Research supported by Aerospace Corp.

Physics

26

Auroral Zones, Electron Precipitation, Ionospheric Disturbances, Morning, Upper Atmosphere, Arctic Regions, Dmsp Satellites, Electron Energy, Energy Spectra, Satellite Imagery

Scientific paper

A quantitative description of the electron precipitation within the morningside aurora is presented based on observations of precipitating electrons obtained from the low-altitude DMSP-F6 satellite. The equatorward region of the diffuse aurora is found to have precipitating electron energy fluxes which typically reach 10 ergs/sq cm-s, and such fluxes can extend over several degrees in latitude. Energy spectra over the diffuse aurora are quite hard and show no evidence of acceleration by field-aligned potential drop. The poleward region of the structured aurora includes a soft background of relatively weak, uniform precipitation. Omega band waves are occasionally observed along the poleward boundary of the diffuse aurora.

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