Day-side auroral signatures based on simultaneous, coordinated observations at Svalbard and Greenland

The height distribution of the dayside cusp aurora and the relation between optical emissions and net downward electron energy flux are discussed. These two important characteristics of day-side cusp aurora are still unknown. It is instructive to compare particle flux and optical luminosity because...

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Bibliographic Details
Published in:IEEE transactions on plasma science 1992-12, Vol.20 (6), p.726-739
Main Authors: Egeland, A., Carlson, H.C., Denig, W.F., Fukui, K., Weber, E.
Format: Article
Language:English
Subjects:
Airglow. Aurora
Coordinate measuring machines
Earth, ocean, space
Electron emission
Electron optics
Electrons
Energy measurement
Exact sciences and technology
External geophysics
Geomagnetism
Geophysical measurements
Light emission
Magnetic fields
Optical properties
Optical sensors
Physics of the high neutral atmosphere
Plasma properties
Satellites
Space research
Stimulated emission
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Summary:The height distribution of the dayside cusp aurora and the relation between optical emissions and net downward electron energy flux are discussed. These two important characteristics of day-side cusp aurora are still unknown. It is instructive to compare particle flux and optical luminosity because these two quantities should be proportional if the cusp aurora is caused by electron impact, as has been found for nighttime aurora in the oval. Furthermore, there should then be a direct relation between auroral altitudes and particle energy. Based on coordinated auroral observations at Svalbard and Greenland, together with simultaneous, overhead F-9 satellite measurements, these quantities have been evaluated.< >
ISSN:0093-3813
1939-9375
DOI:10.1109/27.199521