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| Titel |
The first GPS-TEC imaging of the space structure of MS wave packets excited by the solar terminator |
| VerfasserIn |
E. L. Afraimovich, I. K. Edemskiy, S. V. Voeykov, Yu. V. Yasyukevich, I. V. Zhivetiev |
| 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 ; 27, no. 4 ; Nr. 27, no. 4 (2009-04-02), S.1521-1525 |
| Datensatznummer |
250016478
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| Publikation (Nr.) |
 copernicus.org/angeo-27-1521-2009.pdf |
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| Zusammenfassung |
| Using TEC measurements from the dense network of GPS sites GEONET, we have
obtained the first GPS-TEC image of the space structure of medium-scale
traveling wave packets (MS TWP) excited by the morning solar terminator
(ST). We found that ST-generated wave packets have duration of about 1–2 h
and time shift of about 1.5–6 h after the morning ST appearance at
an altitude of 300 km. The TWP wave front extends along the morning ST line
with the angular shift of about 20°. The time period and wave-length of
ST-generated wave packets are about 10–20 min and 200–300 km, respectively.
The velocity of the TWP phase front traveling is of about 300 m/s. The space
image of MS TWP manifests itself in pronounced anisotropy and high coherence
over a long distance of about 2000 km. |
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