Abstract The inspection of ionospheric sounding data and ground-based geomagnetic data, recorded at Grocka observatories (44°38′N, 20°46′E, I=61°), from 1978–1982, shows that there is correspondence between periods of the sporadic E day-time cycles of activity and the periods of the Sq(H) variation. This is an indication that the sporadic E formation and the Sq(H) variation are controlled by the action of the same wind modes. The coincidences were found between events of extremely dense sporadic E, (fbEs ⩾ 10 MHz), and small size disturbances of H-component values. A possible explanation of these coincidences could be that the current-carrying properties of sequential sporadic E contribute to the changes of the conductivity height profiles and so affect the current flow in the dynamo region.
Possible effects of the ion redistribution in the dynamo region caused by sequential sporadic E layers
Advances in Space Research ; 10 , 10 ; 113-116
1990-01-01
4 pages
Article (Journal)
Electronic Resource
English
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