极地研究

极地研究 ›› 1999, Vol. 10 ›› Issue (2-English): 155-162.

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Polarization characteristics of Pc3 pulsations at Zhongshan Station of Antarctica

 Yang Shaofeng1 and Liu Yonghua2   

  1. 1 Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China;
    2 Polar Research Institute of China, Shanghai 200129, China
  • 出版日期:1949-06-30 发布日期:1949-06-30
  • 通讯作者: Yang Shaofeng

Polarization characteristics of Pc3 pulsations at Zhongshan Station of Antarctica

 Yang Shaofeng1 and Liu Yonghua2   

  1. 1 Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China;
    2 Polar Research Institute of China, Shanghai 200129, China
  • Online:1949-06-30 Published:1949-06-30
  • Contact: Yang Shaofeng

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摘要：

In this paper the data of geomagnetic pulsations at Zhongshan Station from February 3 to Novernber 30 in 1996 are analyzed in ordcr to study polarization characteristics of Zhongshan Station Pc3 pulsations which comprises the cusp Pc3 pulsation and the nightside Pc3 pulsation. For the cusp Pc3 pulsation. the right-handed polarization is always dominant. But their orientation of major axes of polarizations changes with season, NW-SE is dominant in summer and NE-SW in winter. For the nightside Pc3 pulsation,the right-handed with NE-SW is always dominant before midnight. But the left-handed with the mixing orientation of major axes is dominant in summer and the NE-SW with the mixing polarization sense is dominant in winter after midnight. It means that the two types of Zongshan Station Pc3 pulsations have different sources.

关键词: Zhongshan Station, Pc3 pulsation, Polarization

Abstract:

In this paper the data of geomagnetic pulsations at Zhongshan Station from February 3 to Novernber 30 in 1996 are analyzed in ordcr to study polarization characteristics of Zhongshan Station Pc3 pulsations which comprises the cusp Pc3 pulsation and the nightside Pc3 pulsation. For the cusp Pc3 pulsation. the right-handed polarization is always dominant. But their orientation of major axes of polarizations changes with season, NW-SE is dominant in summer and NE-SW in winter. For the nightside Pc3 pulsation,the right-handed with NE-SW is always dominant before midnight. But the left-handed with the mixing orientation of major axes is dominant in summer and the NE-SW with the mixing polarization sense is dominant in winter after midnight. It means that the two types of Zongshan Station Pc3 pulsations have different sources.

Key words: Zhongshan Station, Pc3 pulsation, Polarization