Ionospheric response to variable electric fields in small-scale auroral structures
High time and space resolution optical and radar measurements have revealed the influence of electric fields on E-region electron density profiles in small-scale auroral structures. Large electric fields are present adjacent to auroral filaments produced by monoenergetic electron fluxes. The ion...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
1998-10-01
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| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/16/1343/1998/angeo-16-1343-1998.pdf |
| Summary: | High time and space resolution optical and
radar measurements have revealed the influence of electric fields on E-region
electron density profiles in small-scale auroral structures. Large electric
fields are present adjacent to auroral filaments produced by monoenergetic
electron fluxes. The ionisation profiles measured within and beside the auroral
filaments show the effects of plasma convection due to electric fields as well
as the consequences of the response time to large and dynamic fluxes of
energetic electrons. Without high-resolution optical measurements, the
interpretation of the radar data is limited.<br><br><b>Key words.</b> Auroral ionosphere ·
Ionosphere-magnetosphere interactions · EISCAT</p> |
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| ISSN: | 0992-7689 1432-0576 |