Technical Report of the Kakioka Magnetic Observatory Vol.12 No.01,02, March 2015

Shingo NAGAMACHI
A new computational method for rapid estimation of the K-index

Technical Report of the Kakioka Magnetic Observatory Vol.12 No.01,02, p.1, March 2015
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Hidee TATEHATA
Tsunami-induced Magnetic Field Records at the Chichijima Island Observation station

Technical Report of the Kakioka Magnetic Observatory Vol.12 No.01,02, p.11, March 2015
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Masahiro SASAOKA
【Notes】Geomagnetic total intensity observations at Izu-Oshima volcano -　causes of the observed data variations　-

Technical Report of the Kakioka Magnetic Observatory Vol.12 No.01,02, p.21, March 2015
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