| The intensity ratio I （557.7 nm） / I （427.8 nm） at Zhong- shan Station in Antarctica |
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| 作者姓名： | HU Guoyuan AI Yong ZHANG Hong |
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| 作者单位： | Wuhan University, Wuhan 430070, China |
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| 基金项目： | This research was funded by the Polar Science Strategic Research Fund of the Chinese Arctic and Antarctic Administration, SOA （Grant no. 20080212）. Special thanks go to the Polar Research Institute of China. |
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| 摘 要： | Auroral intensity ratios at Zhongshan Station in Antarctica on 8 April 1999 are studied, along with variations in pene- trated electron energy. Ratios of/（557.7 nm）/I （427.8 nm） during the quiet period were from 5 to 22, and I （630.0 nm） / I （427.8 rim） ranged from 1 to 2.76. These variations were not caused by changes of atomic oxygen concentration, but rather by penetrated electron energy variability, or other mechanisms. Ratios decreased sharply during the auroral substorm, ranging from 1.66--6.5 and 0.071-1, respectively, mainly because of the increase in penetrated electron energy. At the onset of the substorm, the ratios reached their minima. This means that penetrated electron energy was maximized. When the substorm weakened, the penetrated electron energy returned to the pre-substorm level.
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| 关 键 词： | 南极中山站 纳米 强度比 电子能量 极光亚暴 极光强度 氧浓度 渗透 |
The intensity ratio I （557.7 nm） / I （427.8 nm） at Zhong- shan Station in Antarctica |
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| HU Guoyuan,AI Yong,ZHANG Hong.The intensity ratio I （557.7 nm） / I （427.8 nm） at Zhong- shan Station in Antarctica[J].Chinese Journal of Polar Science,2012(1):9-11. |
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| Authors: | Advances in Polar Science |
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| Abstract: | Auroral substorm, intensity ratio, electron |
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| Keywords: | Auroral substorm intensity ratio electron |
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