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| Titel |
ULF waves: 1997 IAGA division 3 reporter review |
| VerfasserIn |
K. Takahashi |
| 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 ; 16, no. 7 ; Nr. 16, no. 7, S.787-803 |
| Datensatznummer |
250013339
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| Publikation (Nr.) |
 copernicus.org/angeo-16-787-1998.pdf |
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| Zusammenfassung |
Highlights of studies of ULF waves from 1995
to early 1997 are presented. The subjects covered include (1) Pc 3–5 waves
excited by sources in the solar wind, with emphasis on the role of the
magnetospheric cavity in modifying the external source and establishing its own
resonances, and the role of the plasmapause in magnetohydrodynamic wave
propagation; (2) Pi 2 waves, with emphasis on the plasmaspheric resonances and
possible alternative excitation by plasmasheet source waves; (3) the spatial
structure of internally excited long-period waves, including a kinetic theory
for radially confined ring current instability and ground-based multipoint
observation of giant pulsations; (4) amplitude-modulated Pc 1–2 waves in the
outer magnetosphere (Pc 1–2 bursts) and in the inner magnetosphere (structured
Pc 1 waves or pearls); and (5) the source region of the quasi-periodic
emissions. Theory and observations are compared, and controversial issues are
highlighted. In addition, some future directions are suggested.
Key words. Magnetospheric physics (MHD waves and
instabilities; Plasma waves and instabilities; Solar wind · magnetosphere
interactions) |
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