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| Titel |
Estimating along-track plasma drift speed from electron density measurements by the three Swarm satellites |
| VerfasserIn |
J. Park, H. Lühr, C. Stolle, G. Malhotra, J. B. H. Baker, S. Buchert, R. Gill |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 33, no. 7 ; Nr. 33, no. 7 (2015-07-08), S.829-835 |
| Datensatznummer |
250121218
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| Publikation (Nr.) |
 copernicus.org/angeo-33-829-2015.pdf |
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| Zusammenfassung |
| Plasma convection in the high-latitude ionosphere provides important
information about magnetosphere–ionosphere–thermosphere coupling. In this
study we estimate the along-track component of plasma convection
within and around the polar cap, using electron density profiles measured by the
three Swarm satellites. The velocity values estimated from the two different
satellite pairs agree with each other. In both hemispheres the estimated
velocity is generally anti-sunward, especially for higher speeds. The
obtained velocity is in qualitative agreement with Super Dual Auroral Radar
Network data. Our method can supplement currently available instruments for
ionospheric plasma velocity measurements, especially in cases where these
traditional instruments suffer from their inherent limitations. Also, the
method can be generalized to other satellite constellations carrying electron
density probes. |
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