Propagation characteristics of the Pc3 frequency range pulsations in the cusp latitudes

摘要

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 latitudes. The results are Summarized as following: At Zhongshan-Davis Stations, the Pc3 frequency range Pulsations occur mainly around the local noon/local magnetic noon and local magnetic Midnight respectively.