Ünal, İbrahim
(Elsevıer scı ltd, the boulevard, langford lane, kıdlıngton, oxford ox5 1gb, oxon, england, 2018)
In this work, we investigate the possible effects of geomagnetic activity on the ionospheric critical frequencies (foF2) in geomagnetic conjugate points. For this purpose, hourly foF2 data measured for the year 1976 from ...