极地研究

极地研究 ›› 1995, Vol. 6 ›› Issue (1-English): 39-50.

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Pulsating aurora - a review

 Jorma Kangas1 and Cao Chong2   

  1. 1Department of Physical Sciences, University of Oulu, FIN-90570, Oulu, Finland 2China Research Institute of Radiowave Propagation, Xinxiang 453003, China
  • 出版日期:1945-03-30 发布日期:1945-03-30
  • 通讯作者: Jorma Kangas

Pulsating aurora - a review

 Jorma Kangas1 and Cao Chong2   

  1. 1Department of Physical Sciences, University of Oulu, FIN-90570, Oulu, Finland 2China Research Institute of Radiowave Propagation, Xinxiang 453003, China
  • Online:1945-03-30 Published:1945-03-30
  • Contact: Jorma Kangas

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摘要：

In this review, the observational facts about pulsating aurorae are summarized and discussed in the frame of the recent develpment of the theories which intend to explain the mechanism of auroral pulsations. Although new data are available some key observations in the magnetosphere are still missing in order to identify the wave mode to precipitate electrons into the atmosphere and in order to understand the role of magnetospheric plasma in producing pulsating aurora. It apters that the Coroniti-Kennel or micropulsation theory needs to be re-visited although the so-called flow cyclotron maser model seems to explain many of the characteristics of auroral pulsations.

关键词: pulsating aurora, particle precipitation, auroral zone, energy spectrum, precipitating electron

Abstract:

In this review, the observational facts about pulsating aurorae are summarized and discussed in the frame of the recent develpment of the theories which intend to explain the mechanism of auroral pulsations. Although new data are available some key observations in the magnetosphere are still missing in order to identify the wave mode to precipitate electrons into the atmosphere and in order to understand the role of magnetospheric plasma in producing pulsating aurora. It apters that the Coroniti-Kennel or micropulsation theory needs to be re-visited although the so-called flow cyclotron maser model seems to explain many of the characteristics of auroral pulsations.

Key words: pulsating aurora, particle precipitation, auroral zone, energy spectrum, precipitating electron