The behaviour of the midlatitude F-region at the time of four magnetospheric substorms during the night of 29/30 October 1973 |
| |
| Authors: | MM Gogoshev KB Serafimov TsN Gogosheva KM Kazakov |
| |
| Institution: | Central Laboratory for Space Research, Sofia, Boul. Roussky No. 1 1000, Bulgaria |
| |
| Abstract: | The data from observations of the geomagnetic field, ionospheric parameters and atmospheric emissions, carried out at four midlatitude station in Bulgaria are analysed. The observations refer to the geomagnetic disturbance on 28/30 October 1973 (Kpmax = 7) and also to a very quiet period before it. It is shown that all four geomagnetic substorms during the night of 29/30 October influenced the midlatitude F-region. This is indicated by a lowering of the height of the F-region by ca. 50–70 km. Owing to this downward drift of ionisation the dissociative recombination and the intensity of the red line is accordingly increased. As an explanation of this phenomenon we suggest the action of the electric fields, which can at the same time be transported from the magnetosphere to the ionosphere. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
