Observations of the day-to-day variability of the Sq(H) variation and the ion redistribution in the dynamo region

摘要: Abstract The parallel analysis of the H -component ground-based magnetometer data, registered on quiet days, and sporadic E vertical ionospheric sounding data for period 1978–1982, is carried out. changes in behaviour as well Sq current system variability, are both assumed to originate from perturbation existing tidal wind pattern dynamo region. A coincidence was found between phase amplitude day-to-day ( ) variation, diurnal distribution virtual height blanketing frequency. It also that presence extremely intense layers f b s , 10 15 MHz), coincides with appearance small size disturbances δH about a few nT). These might be induced by flow layer. used this were recorded at geomagnetic observatories, Grocka (44°38' N, 20°46' E, I = 61°).