 |
| Titel |
A flux transfer event observed at the magnetopause by the Equator-S spacecraft and in the ionosphere by the CUTLASS HF radar |
| VerfasserIn |
D. A. Neudegg, T. K. Yeoman, S. W. H. Cowley, G. Provan, G. Haerendel, W. Baumjohann, U. Auster, K.-H. Fornacon, E. Georgescu, C. J. Owen |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
0992-7689
|
| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 17, no. 6 ; Nr. 17, no. 6, S.707-711 |
| Datensatznummer |
250013768
|
| Publikation (Nr.) |
 copernicus.org/angeo-17-707-1999.pdf |
|
|
|
|
|
| Zusammenfassung |
Observations of a flux transfer event (FTE)
have been made simultaneously by the Equator-S spacecraft near the dayside
magnetopause whilst corresponding transient plasma flows were seen in the
near-conjugate polar ionosphere by the CUTLASS Finland HF radar. Prior to the
occurrence of the FTE, the magnetometer on the WIND spacecraft ~226 RE
upstream of the Earth in the solar wind detected a southward turning of the
interplanetary magnetic field (IMF) which is estimated to have reached the
subsolar magnetopause ~77 min later. Shortly afterwards the Equator-S
magnetometer observed a typical bipolar FTE signature in the magnetic field
component normal to the magnetopause, just inside the magnetosphere. Almost
simultaneously the CUTLASS Finland radar observed a strong transient flow in the
F region plasma between 78° and 83° magnetic latitude, near the ionospheric
region predicted to map along geomagnetic field lines to the spacecraft. The
flow signature (and the data set as a whole) is found to be fully consistent
with the view that the FTE was formed by a burst of magnetopause reconnection.
Key words. Interplanetary physics
(ionosphere-magnetosphere interaction) · Magnetospheric physics (magnetopause
· cusp · and boundary layers; solar wind-magnetosphere interactions) |
| |
|
| Teil von |
|
|
|
|
|
|
|
|