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ホーム > 刊行物 > 地磁気観測所要報 第23巻 第01号 > 地磁気観測所要報 第23巻 第01号 >Wave Characteristics of SSC Associated Magnetic Pulsations (Psc)

地磁気観測所要報 第23巻 第01号, p.17, March, 1989


Wave Characteristics of SSC Associated Magnetic Pulsations (Psc)


Kuwashima, M.


Abstract

 Observational results from a latitudinal array of ground-based magnetometer stations extending from L〜6 to L〜1.5 indicate that the damped-type magnetic oscillations excited by storm sudden commencement (SSC) of various periods occur simultaneously; longer periods (〜300sec) in high latitudes and shorter periods (30sec) in low latitudes. From a more detailed study based on the observation in the auroal region, it is suggested that there exist the decoupled magneto-hydrodynamic (MHD) oscillation of individual magnetic shell associated with SSC.



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