Double-resonance Pc 5 pulsation

Journal Article · Fri Jul 01 04:00:00 UTC 1983 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA088iA07p05760· OSTI ID:5811412

Nielsen, E; Allan, W

Observations of a monochromatic Pc 5 ULF pulsation event with the simultaneous occurrence of resonance at two latitudes are presented. The event indicates the presence of a large inward directed postive gradient in the equatorial cold plasma density. Model calculations are used to deduce the radial variation of the plasma density. The results support the idea that resonant Pc 5 pulsations are driven by an inward propagating wave, which may be generated at the magnetopause by the Kelvin-Helmholtz instability.

• Research Organization: Max-Planck-Institut fuer Aeronomie, 3411 Katlenburg-Lindau, Federal Republic of Germany
• OSTI ID: 5811412
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 88:A7; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640203* -- Atmospheric Physics-- Magnetospheric Phenomena-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
E REGION
EARTH ATMOSPHERE
ELECTRON DRIFT
FOURIER ANALYSIS
HELMHOLTZ INSTABILITY
HYDROMAGNETIC WAVES
INSTABILITY
IONOSPHERE
MAGNETOSPHERE
PLANETARY IONOSPHERES
PLASMA DENSITY
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PULSATIONS
WAVE PROPAGATION