Estimation of geomagnetic conjugate points by using Pc5 pulsations

In the present paper, we have attempted to estimate the geomagnetic conjugate points by the method of TONEGAWA and SATO using Pc5 geomagnetic pulsation data obtained simultaneously at three stations in Iceland and at three stations in Antarctica (including Syowa Station) during the period of March a...

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Bibliographic Details
Main Authors: Ken-ichi Kato, Yutaka Tonegawa, Natsuo Sato
Format: Article in Journal/Newspaper
Language:English
Japanese
Published: National Institute of Polar Research 1992
Subjects:
Online Access:https://doi.org/10.15094/00008751
https://doaj.org/article/8100cfe22803457f83d8b7fbbaf24a9e
Description
Summary:In the present paper, we have attempted to estimate the geomagnetic conjugate points by the method of TONEGAWA and SATO using Pc5 geomagnetic pulsation data obtained simultaneously at three stations in Iceland and at three stations in Antarctica (including Syowa Station) during the period of March and May in 1988. It is assumed in the estimation that Pc5 pulsations are odd mode standing oscillations of the field line and have linear phase variations among the stations in the horizontal plane. The result shows that conjugate points of Syowa Station estimated from Pc5 events are concentrated around the point calculated from the magnetic field model of TSYGANENKO, within the range of ±3°in the longitude, i. e., less than 1/5 wave length, and ±0.5°in the latitude.