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| Titel |
Three-dimensional morphology of equatorial plasma bubbles deduced from measurements onboard CHAMP |
| VerfasserIn |
J. Park, H. Lühr, M. Noja |
| 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. 1 ; Nr. 33, no. 1 (2015-01-28), S.129-135 |
| Datensatznummer |
250121156
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| Publikation (Nr.) |
 copernicus.org/angeo-33-129-2015.pdf |
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| Zusammenfassung |
| Total electron content (TEC) between Low-Earth-Orbit (LEO) satellites and the
Global Navigation Satellite System (GNSS) satellites can be used to constrain
the three-dimensional morphology of equatorial plasma bubbles (EPBs). In this
study we investigate TEC measured onboard the Challenging Minisatellite
Payload (CHAMP) from 2001 to 2005. We only use TEC data obtained when CHAMP
passed through EPBs: that is, when in situ plasma density measurements at
CHAMP altitude also show EPB signatures. The observed TEC gradient along the
CHAMP track is strongest when the corresponding GNSS satellite is located
equatorward and westward of CHAMP with elevation angles of about
40–60°. These elevation and azimuth angles are in agreement with
the angles expected from the morphology of the plasma depletion shell
proposed by Kil et al.(2009). |
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