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Titel |
Low frequency geomagnetic field fluctuations at low latitude during the passage of a higher pressure solar wind region |
VerfasserIn |
U. Villante, P. Francia |
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 ; 15, no. 6 ; Nr. 15, no. 6, S.656-661 |
Datensatznummer |
250012825
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Publikation (Nr.) |
copernicus.org/angeo-15-656-1997.pdf |
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Zusammenfassung |
The passage of a higher pressure solar wind
region at the Earth's orbit marked the onset of low latitude (L=1.6)
fluctuations in the frequency range (0.8–5.5 mHz) for both the horizontal
geomagnetic field components. Spectral peaks mostly occur at the same
frequencies as the spectral enhancements which appeared in the long term
analysis of experimental measurements from the same station and were tentatively
interpreted in terms of ground signatures of global magnetospheric modes. A
comparison with simultaneous observations discussed by previous investigations
allows us to conclude that the same set of frequencies is enhanced in a wide
portion of the Earth's magnetosphere. |
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