Physics
Scientific paper
Oct 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jatp...48..795d&link_type=abstract
(EISCAT Scientific Association, International EISCAT Workshop, 2nd, Aberystwyth, Wales, Sept. 9-12, 1985) Journal of Atmospheric
Physics
14
Auroral Absorption, D Region, Eiscat Radar System (Europe), Electron Precipitation, Absorption Spectra, Electronic Spectra, Ionospheric Electron Density, Vertical Distribution
Scientific paper
Electron densities in the D-region have been observed with EISCAT during energetic electron precipitation events. Sample results are presented which demonstrate the value of the technique in studying variations of electron density with fine temporal and spatial resolution. Different types of absorption event can be characterized in terms of the changes in the incoming electron spectrum inferred from profiles of electron density. The D-region behavior of night- and day-time events is contrasted in terms of the precipitating spectrum and absorption profile. A softening of the electron spectrum during the course of a morning event is clearly seen.
Collis P. N.
Devlin T.
Hargreaves John Keith
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