AURORAL BRIGHT SPOT SEQUENCE NEAR 1400 MLT' COORDINATED OPTICAL AND ION DRIFT OBSERVATIONS
Abstract. Optical observations of a dayside auroral brightening sequence, by means of all-sky TV cameras and meridian scanning photometers, have been combined with EISCAT ion drift observations within the same invariant latitude- MLT sector. The observations were made during a January 1989 campaign...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.694.9249 http://www.eiscat.rl.ac.uk/Members/mike/publications/pdfs/1990/80_Sandholtetal_1990.pdf |
| Summary: | Abstract. Optical observations of a dayside auroral brightening sequence, by means of all-sky TV cameras and meridian scanning photometers, have been combined with EISCAT ion drift observations within the same invariant latitude- MLT sector. The observations were made during a January 1989 campaign by utilizing the high F region ion densities during the maximum phase of the solar cycle. The chaPacteristic intermittent optical events, covering ~300 km in east-west extent, move eastward (antisunward) along %he poleward boundary of the persistent back•ound aurora at velocities of ~1.5 |
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