Dayside auroras during storms of April 2002: TIMED/GUVI observations
Abstract
During the major magnetic storms on April 17-20, 2002, TIMED/GUVI observed a new feature of dayside auroras: a separated diffused auroral oval at magnetic latitudes below 70 degrees. Such auroral feature was very dynamic and did not exist all the time. Energetic electrons/protons drifting from the night side magnetosphere may be the source of the auroras. We will discuss the IMF and magnetospheric conditions for the auroras to occur.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2002
- Bibcode:
- 2002AGUFMSA21B0448Z
- Keywords:
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- 2704 Auroral phenomena (2407);
- 2716 Energetic particles;
- precipitating;
- 2736 Magnetosphere/ionosphere interactions;
- 2784 Solar wind/magnetosphere interactions;
- 2788 Storms and substorms