Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
We selected several cases when Geotal satellite situated in the mid-tail was in conjunction with ground-based all-sky TV cameras observing auroral breakups. Localisation of auroral events within the field of view of ground-based stations has been controlled by the Polar imager data. Some of the events exhibited the existence of high-speed (500-700 km/s) Earthward plasma flows within the plasma sheet before the breakups. To verify if the fast flow could be a cause of the breakups a detailed consideration and timing of the phenomena has been done. We concluded that in the considered cases there was no causal relationship between fast Earthward flows and breakups. In addition a search for auroral precursors, which could occur poleward of pre-breakup are just before breakup, has been performed. As such structures might be subvisual, some filtration methods were applied to the TV data. Our analysis did not show any auroral precursors. Thus, our observations failed to confirm the model of substorm, which connects the auroral onset with the braking of the high-speed Earthward plasma flow.
Original language | English |
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Title of host publication | PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON SUBSTORMS |
Editors | A Wilson |
Publisher | ESA Publication Division |
Pages | 345-348 |
Number of pages | 4 |
ISBN (Print) | 92-9092-772-0 |
State | Published - 2000 |
Event | 5th International Conference on Substorms - ST PETERSBURG Duration: 16 May 2000 → 20 May 2000 |
Name | ESA SPECIAL PUBLICATIONS |
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Publisher | ESA PUBLICATIONS DIVISION C/O ESTEC |
Volume | 443 |
ISSN (Print) | 0379-6566 |
Conference | 5th International Conference on Substorms |
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City | ST PETERSBURG |
Period | 16/05/00 → 20/05/00 |
ID: 36631685