Two-component auroras

J. H. Shue, P. T. Newell, K. Liou, C. I. Meng, Y. Kamide, R. P. Lepping

研究成果: 雜誌貢獻期刊論文同行評審

14 引文 斯高帕斯(Scopus)


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.

頁(從 - 到)17-1-17-4
期刊Geophysical Research Letters
出版狀態已出版 - 15 5月 2002


深入研究「Two-component auroras」主題。共同形成了獨特的指紋。