Ionospheric conductances derived from DE-1 auroral images

Details Ionospheric conductances derived from DE-1 auroral images Ionospheric conductances derived from DE-1 auroral images

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jatp...53..281l&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 53, Mar.-Apr. 1991, p. 281-292.

Physics

32

Auroral Spectroscopy, Dynamics Explorer 1 Satellite, Ionospheric Conductivity, Polar Substorms, Satellite Imagery, Hall Effect, Ionospheric Currents, Ultraviolet Spectra

Scientific paper

The multispectral auroral images from the Dynamics Explorer satellite are used to construct maps of auroral electron energy deposition, mean energy, and ionospheric conductances. An auroral model is used to infer conductances from brightness ratios of different spectral emissions. This method and its limitations are described, and the analysis to eight pairs of auroral images obtained sequentially over a period of 1 h 30 min during an intense substorm on November 22, 1981 is applied. The derived conductance patterns exhibit large variability in time and considerable structure within the auroral oval.

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