Possible effects of the ion redistribution in the dynamo region caused by sequential sporadic E layers
| Autor: | D.P. Grubor |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Physics
Atmospheric Science Ionospheric electron density Aerospace Engineering Astronomy and Astrophysics Astrophysics Atmospheric sciences Sporadic E propagation Ionospheric sounding Ion Geophysics Earth's magnetic field Space and Planetary Science Dynamo theory General Earth and Planetary Sciences Atmospheric electricity Dynamo |
| Zdroj: | Advances in Space Research. 10:113-116 |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/0273-1177(90)90018-u |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|