Propagation characteristics of the Pc3 frequency range pulsation in the cusp latitude

Yonghua, Liu and Ruiyuan, Liu and Shaofeng, Yang and Longsong, He and Fraser, B. J. (1999) Propagation characteristics of the Pc3 frequency range pulsation in the cusp latitude. Advances in Polar Science, 10 (2). pp. 163-170.

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Abstract

Two induction magnetometers have been installed at Zhongshan Station and Davis Station, Antarctica respectively. We adopt with cross-spectral analysis technique to analyze the data of the two induction magnetometers, in June, September, December 1996 and March 1997, to investigate the Pc3 frequency range pulsation occurrence and propagation characteristics in the cusp latitude. The results are summarized as following: At Zhongshan-Davis Station, the Pc3 frequency range pulsations occur mainly around the local noon/ local magnetic noon and local magnetic midnight respectively. In daytime, the pulsation have a seasonal variation in amplitude, occurrence and temporal range, all of them are smallest in winter. But in nighttime, the pulsations have no such a variation. The pulsation amplitude in nighttime is much larger than the one in daytime all over the year. The pulsation propagating direction is mainly western in daytime and irregularly in nighttime. It can be thought that the different sources of the pulsation and the ionospheric electric conductivity are mainly responsible for these characteristics.

Item Type:	Article
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Keywords:	Pc3 frequency range pulsation, cusp latitude, propagation.
Subjects:	Unspecified
Organizations:	Unspecified
Date Deposited:	27 Apr 2023 13:02
URI:	http://library.arcticportal.org/id/eprint/2189

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