极地研究

极地研究 ›› 2012, Vol. 23 ›› Issue (1-English): 9-11.DOI: 10.3724/SP.J.1085.2012.00009

• 研究论文 • 上一篇    下一篇

The intensity ratio I (557.7 nm)/I (427.8 nm) at Zhongshan Station in Antarctica

  

  • 收稿日期:2011-09-07 修回日期:2011-10-08 出版日期:1962-03-30 发布日期:1962-03-30

The intensity ratio I (5577)/I (4278) at Zhongshan Station in Antarctica

HU Guoyuan, AI Yong & ZHANG Hong   

  1. School of electronic information, Wuhan University
  • Received:2011-09-07 Revised:2011-10-08 Online:1962-03-30 Published:1962-03-30
  • Contact: HU Guoyuan

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Abstract:

The auroral intensity ratios at Zhongshan station on April 8, 1999 were discussed, together with the variety of penetrated electron energy, it is concluded that the ratios of I(557.7nm)/I(427.8nm) during quiet period varied from 5 to 22, as well as I(630.0nm)/I(427.8 nm) from 1 to 2.76, and the cause for the change was not the atomic oxygen concentration variety, but the penetrated electron energy variety or other mechanisms; the ratios decreased sharply during the auroral substorm, varied from 1.66 to 6.5 and 0.071 to 1 respectively, which mainly caused by the increase of penetrated electron energy. At the beginning of the auroral substorm, the ratios reached its minimum; means that the penetrated electron energy got its maximum, while auroral substorm wear off, the penetrated electron energy come back to the level of pre-substorm.

Key words: auroral substorm, intensity ratio, electron