Stolle, Claudia und Lilensten, Jean und Schlüter, Stefan und Jacobi, Christoph und Rietveld, Michael und Lühr, Hermann (2006) Observing the north polar ionosphere on 30 October 2003 by GPS imaging and IS radars. Annales Geophysicae, 24, Seiten 107-113. European Geosciences Union.
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Kurzfassung
The evening of 30 October 2003 was subject to a major storm main phase. For this time, we combine largescale electron content maps from GPS imaging with time series of electron density and temperature of two EISCAT radars in Tromsø and Svalbard and the Sondrestrom radar, for observing the north polar ionosphere. The GPS assimilations resulted in the image of the electron content trace of an anti-sunward polar Tongue Of Ionisation (TOI) consecutively to 20:00 UT. In combination with the radar observations we concluded that the TOI persisted during the whole period of continuous southward IMF Bz until about 22:40 UT while its largest extension toward the nightside auroral region was found between 21:00–22:00 UT. A typical F region electron temperature of ~2000K and the plasma velocity of ~800 ms<sup>−1</sup> support its convective origin from the dayside mid-latitudes. Due to the structured appearance of the electron content distribution and the radar electron density time series we believe that discrete plasma patches formed inside the anti-sunward drift pattern. After two large oscillations of the IMF Bz the nightside plasma density was observed to re-enhance after 23:00 UT along a longitudinal band below 70°N. Coinciding electron temperatures of ~2000K suggest again the convective nature of the plasma, while a modified convection pattern is expected.
elib-URL des Eintrags: | https://elib.dlr.de/22873/ | ||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||
Titel: | Observing the north polar ionosphere on 30 October 2003 by GPS imaging and IS radars | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 2006 | ||||||||||||||||||||||||||||
Erschienen in: | Annales Geophysicae | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||
Band: | 24 | ||||||||||||||||||||||||||||
Seitenbereich: | Seiten 107-113 | ||||||||||||||||||||||||||||
Verlag: | European Geosciences Union | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | Polar ionosphere, Ionospheric disturbances, Plasma convection | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||||||||||||||
HGF - Programm: | Weltraum (alt) | ||||||||||||||||||||||||||||
HGF - Programmthema: | W EW - Erforschung des Weltraums | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Weltraum | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | W EW - Erforschung des Weltraums | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | W - Vorhaben Weltraumwetter (alt) | ||||||||||||||||||||||||||||
Standort: | andere | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Kommunikation und Navigation > Navigation > Navigations- und Leitsysteme | ||||||||||||||||||||||||||||
Hinterlegt von: | Schlüter, Dr.rer.nat. Stefan | ||||||||||||||||||||||||||||
Hinterlegt am: | 28 Mär 2006 | ||||||||||||||||||||||||||||
Letzte Änderung: | 27 Apr 2009 05:04 |
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