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ホーム > 刊行物 > 地磁気観測所要報 第06巻 第01号 > 地磁気観測所要報 第06巻 第01号 >On the Storms of Earth-Current Potentials observed at Kakioka

地磁気観測所要報 第06巻 第01号, p.42, April, 1951


On the Storms of Earth-Current Potentials observed at Kakioka


Yokouchu, Y.


Abstract

 In the period of 1934 to 1942, 266 sudden commencement storms of earth-current potentials were recorded at Kakioka. Their mean storm-time variation is similar in its general feature as that in geomagnetism. The amplitudes of sudden commencement and maximum ranges of storms are obtained, and the frequency curves of direction and duration of sudden change at the time of occurrence are also obtained; their values are E10°N and 3.5 minutes, respectively. Mean duration of storms are 30 hours.



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