On the position of the focus of the geomagnetic S<sub>q</sub> current system
Hasegawa, M.
Журнал:
Journal of Geophysical Research
Дата:
1960
Аннотация:
This paper reviews present knowledge about the S<sub>q</sub> foci, discusses the cause of changes in the S<sub>q</sub> field, and describes problems concerning the determination of the S<sub>q</sub> focus. It is concluded that the foci in the potential fields of geomagnetic D<sub>q</sub> variations may be taken as approximately indicating the positions of ionospheric S<sub>q</sub> current foci.
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