Memoirs of the Kakioka Magnetic Observatory Vol.17 No.01， p.1, January, 1977
Effect of the IMF Sector Structure on the Mid-Latitude Sq
The geomagnetic hourly value data at Memambetsu, Kakioka and Kanoya during 16 years have been statistically analyzed to confirm the effect of the interplanetary magnetic field (IMF) sector structure on the daily variation in the middle latitude.
It has been shown that the IMF sector structure has a small but clear effect on the focus latitude and intensity of Sq variation, but little effect on the mean absolute level of Sq. Some other features of the effect have also been examined.