极地研究

极地研究 ›› 2000, Vol. 11 ›› Issue (1-English): 59-66.

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Analysis of Sqp current systems by using corrected geomagnetic coordinate

 Chen Hongfei, Chen Gengxiong, Peng Fenglin and Xu Wenyao   

  1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China
  • 出版日期:1950-03-30 发布日期:1950-03-30
  • 通讯作者: Chen Hongfei

Analysis of Sqp current systems by using corrected geomagnetic coordinate

 Chen Hongfei, Chen Gengxiong, Peng Fenglin and Xu Wenyao   

  1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China
  • Online:1950-03-30 Published:1950-03-30
  • Contact: Chen Hongfei

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摘要：

The Sqp equivalent current system of the quiet day geomagnetic variation in the polar region is very complicated. It is composed of several currents, such as the ionospheric dynamo current and the auroral electrojet caused by the field-aligned current. Sqp is unsymmetrical in both polar regions. In this paper, the Sqp current systems are analyzed in the corrected geomagnetic coordinates (CGM) instead of the conventional geomagnetic coordinates (GM), and the symmetries of the Sqp current in different systems are compared. Then the causes of Sqp asymmetry in the GM coordinates are discussed; the effects of each component in Sqp are determined.

关键词: Sqp equivalent current systems, corrected geomagnetic coordinates, solar quiet day variation

Abstract:

The Sqp equivalent current system of the quiet day geomagnetic variation in the polar region is very complicated. It is composed of several currents, such as the ionospheric dynamo current and the auroral electrojet caused by the field-aligned current. Sqp is unsymmetrical in both polar regions. In this paper, the Sqp current systems are analyzed in the corrected geomagnetic coordinates (CGM) instead of the conventional geomagnetic coordinates (GM), and the symmetries of the Sqp current in different systems are compared. Then the causes of Sqp asymmetry in the GM coordinates are discussed; the effects of each component in Sqp are determined.

Key words: Sqp equivalent current systems, corrected geomagnetic coordinates, solar quiet day variation