Memoirs of the Kakioka Magnetic Observatory Vol.05 No.01， p.45, December, 1943
Radio Fade-Outs and Variations of the Earth's Magnetism
Imamiti, S.
Abstract
As the third report on the variations of the earth's magnetism accompanied with radio fade-outs，the following points are discrived. (we call these magnetic variations provisionary“Chromospherical-type variation”)
1. Frequency of occurrence of these two phenomena.
2. Seasonal variation of these two phenomena.
3. Types of Chronospherical type variations.
4. Ratio of increase of ionisation when radio fade-outs occurs to ordinary ionisation in diurnal variation layer of the earth magnetism.
