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Geomagnetic Observations and Analyses at Namie and other Several Stations with Special Reference to Japan Anomaly of Geomagnetic Variation.
The research group of subterranean conductivity anomaly in Japan made a plan of routine observations of geomagnetic variation during the IQSY (International Quiet Sun Years) at 10 or more temporary stations in connection with UMP (Upper Mantle Project). As one of the research program, Kakioka magnetic observatory has taken charge of the observation in the southern part of the North-East Japan. The temporary station was set up initially at Onahama (36°58' N, 140°55' E) and then it was removed to Namie (37°29' N, 140°58' E).
Experimental tests of used instruments, which were flux-gate magnetometers specially designed for the routine use, were carried out before the start of routine observation, and necessary improvement was done.
Observeded characteristics of geomagnetic variation is analyzed and reported with special reference to the said Japan anomaly of conductivity.
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