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| Titel |
Solar wind velocity at solar maximum: A search for latitudinal effects |
| VerfasserIn |
B. Bavassano, R. D'Amicis, R. Bruno |
| 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 ; 22, no. 10 ; Nr. 22, no. 10 (2004-11-03), S.3721-3727 |
| Datensatznummer |
250015043
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| Publikation (Nr.) |
 copernicus.org/angeo-22-3721-2004.pdf |
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| Zusammenfassung |
| Observations by Ulysses during its second out-of-ecliptic orbit have shown
that near the solar activity maximum the solar wind appears as a highly
variable flow at all heliolatitudes. In the present study Ulysses data from
polar latitudes are compared to contemporary ACE data in the ecliptic plane
to search for the presence of latitudinal effects in the large-scale
structure of the solar wind velocity. The investigated period roughly covers
the Sun's magnetic polarity reversal. The Ulysses-ACE comparison is performed
through a multi-scale statistical analysis of the velocity fluctuations at
scales from 1 to 64 days. The results indicate that, from a statistical point
of view, the character of the wind velocity structure does not appear to
change remarkably with latitude. It is likely that this result is
characteristic of the particular phase of the solar magnetic cycle. |
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