著者

T. Oguti

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.45, no.3, pp.231-242, 1993-03-20 (Released:2007-04-03)

参考文献数

20

被引用文献数

6 6

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Variations in the location of the auroral zone over the past 1000 years is inferred from a model of secular variation in the geomagnetic field and its backward extrapolation. It is shown that the auroral zone was elongated and deviated towards the European sector 300 years ago, although it is deviated to the Canadian sector at present. The northern UK was located in or very close to the auroral zone, and large parts of the UK, Denmark and northern Germany were in the subauroral zone at that time. It cannot be accidental that the studies of aurorae were developed in France and the UK in the 17th and 18th centuries.