Non-Seasonal Annual Variation in the Period of Pc 5 Observed at Syowa Station (d. ULF Waves in the Magnetosphere) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I)

ULF signals registered at Syowa Station are reproduced by an FM tape recorder with a speed-up ratio of 2×10^4 and are analyzed with a high-speed spectrum analyzer called HISSA. The Pc 5 periods in June, 1973, are revealed to be shorter than those in December, 1973. An eye-reading analysis of Pc 5�...

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Bibliographic Details
Main Authors: Takao SAITO, Kiyohumi YUMOTO, Tadayoshi TAMURA
Format: Article
Language:English
Published: National Institute of Polar Research 1980-02-01
Series:Antarctic Record
Online Access:http://doi.org/10.15094/00008137