著者

Mitsuo KEIMATSU Naoshi FUKUSHIMA Takesi NAGATA

出版者

Society of Geomagnetism and Earth, Planetary and Space Sciences

雑誌

Journal of geomagnetism and geoelectricity (ISSN:00221392)

巻号頁・発行日

vol.20, no.1, pp.45-50, 1968-03-20 (Released:2010-09-14)

参考文献数

10

被引用文献数

12 22

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In order to trace the secular variation of the geomagnetic field in historic time, the documents of ancient aurorae can be utilized. In China, Korea and Japan, there are a number of valuable records, which can be reasonably supposed to describe the events of auroral appearance. After a comparison of these descriptions with those in Europe, the archaeo-secular variation in the geomagnetic field can be inferred. A preliminary examination of the auroral appearance on the same day in the Occident and Orient suggests that the geomagnetic dipole axis might have been inclined towards China around 11-12th centuries AD.