Corotation of ring current auroral spots at sub-auroral latitudes
Abstract |
We report observations of auroral spots s at sub-auroral latitudes. The auroral spots occurred during storm-recovery phases and corotated with the Earth at a speed either higher (super-rotation) or lower (sub-rotation) than the Earth\textquoterights rotation rate. In the dawn side, the spots have a slightly higher probability of super-rotation than that of the duskside auroral spots. The super- and sub-rotation is likely due to dynamics of the plasmasphere that is controlled by both drag (sub-rotation) and solar wind driven plasma convection. |
Year of Publication |
2020
|
Journal |
Journal of Atmospheric and Solar-Terrestrial Physics
|
Volume |
198
|
Number of Pages |
105195
|
Date Published |
Jan-02-2020
|
ISSN Number |
13646826
|
URL |
https://www.sciencedirect.com/science/article/pii/S1364682620300158
|
DOI |
10.1016/j.jastp.2020.105195
|
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