极地研究

极地研究 ›› 1999, Vol. 10 ›› Issue (2-English): 171-175.

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The characteristics of Pi2 pulsations at Zhongshan Station of Antarctica

 Du Aimin, Yang Shaofeng and Xiao Fuhui   

  1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China
  • 出版日期:1949-06-30 发布日期:1949-06-30
  • 通讯作者: Du Aimin

The characteristics of Pi2 pulsations at Zhongshan Station of Antarctica

 Du Aimin, Yang Shaofeng and Xiao Fuhui   

  1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China
  • Online:1949-06-30 Published:1949-06-30
  • Contact: Du Aimin

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摘要：

In this paper Pi2 pulsations at Zhongshan Station of Antarctica are analyzed from October 1-31, 1996. Their characteristics e. g. occurrence frequency, frequency, and polarization are studied. The characteristics of Pi2 pulsations are summerized as follows: (1) Pi2 pulsations at Zhongshan Station usually take place from 2000 MLT to 0200 MLT; the main frequencies are between 6.79 mHz and 13.58mHZ; (2) Pi2 pulsations with low frequencies are dominent. The range of main frequencies becomes narrow at midnight; (3) The Polarization of Pi2 pulsations are almost linear; (4) About the orientation of major axes the NW-SE direction is dominent before 2200 MLT and NE-SW is dominent after 2200 MLT. The generation mechanism of Pi2 pulsations at Zhongshan Station is discussed theoretically.

关键词: Antarctica, Pi2 pulsations, Zhongshan Station

Abstract:

In this paper Pi2 pulsations at Zhongshan Station of Antarctica are analyzed from October 1-31, 1996. Their characteristics e. g. occurrence frequency, frequency, and polarization are studied. The characteristics of Pi2 pulsations are summerized as follows: (1) Pi2 pulsations at Zhongshan Station usually take place from 2000 MLT to 0200 MLT; the main frequencies are between 6.79 mHz and 13.58mHZ; (2) Pi2 pulsations with low frequencies are dominent. The range of main frequencies becomes narrow at midnight; (3) The Polarization of Pi2 pulsations are almost linear; (4) About the orientation of major axes the NW-SE direction is dominent before 2200 MLT and NE-SW is dominent after 2200 MLT. The generation mechanism of Pi2 pulsations at Zhongshan Station is discussed theoretically.

Key words: Antarctica, Pi2 pulsations, Zhongshan Station