Memoirs of the Kakioka Magnetic Observatory Vol.16 No.02， p.143, December, 1975
Transfer Function at Kakioka
Shiraki, M. & Yanagihara, K.
It is a well known fact that vectors of geomagnetic short period variation have an approximate relation,
between their components ΔH, ΔD and ΔZ. A and B are functions of frequency (period) and called transfer functions. In the present paper the transfer functions at Kakioka are obtained for the periods from 15 to 120 minutes by means of the method developed by Evereｔt and Hyndman (1967) using fifteen geomagnetic storms. The present transfer functions are compared with A and B obtained by the traditional method. And some problems are discussed briefiy.