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Detailed Reference Information
Shue et al. 2002
Shue, J.-H., Newell, P.T., Liou, K., Meng, C.-I., Kamide, Y. and Lepping, R.P. (2002). Two-component auroras. Geophysical Research Letters 29: doi: 10.1029/2002GL014657. issn: 0094-8276.

By examining Polar Ultraviolet Imager auroral images at the 160--180 nm N2 Lyman-Birge-Hopfield emission band, we find that the auroral dynamics associated with substorms shows a two-component feature. An auroral feature, which is called the two-cell aurora, is associated with the increased magnetospheric convection in response to a southward interplanetary magnetic field. A substorm expansion may then occur, adding an additional aurora in the midnight sector. As the substorm continuously increases its strength, the substorm aurora connects with the two-cell aurora, forming a well-defined crescent-shape aurora. It is also found that the occurrence rate of the two-cell aurora depends on universal time.

BACKGROUND DATA FILES

Abstract

Keywords
Magnetospheric Physics, Auroral phenomena, Magnetospheric Physics, Current systems, Magnetospheric Physics, Solar wind/magnetosphere interactions, Ionosphere, Ionosphere/magnetosphere interactions
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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