Field-aligned currents associated with Pc 5 pulsations: STARE and TRIAD observations

Journal Article · Thu Apr 01 00:00:00 EST 1982 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA087iA04p02331· OSTI ID:5024456

Poulter, E M; Nielsen, E; Potemra, T A

The resonance theory for monochromatic Pc 5 micropulsations predicts that the toroidal mode resonance should be accompanied by field-aligned current systems. These currents close via Pedersen current in the ionosphere, and the drifting irregularities observed by the STARE radars are thought to be generated by the associated electric fields. Recent theoretical calculations by Walker (1980) are used to estimate the micropulsation current systems and accompanying magnetic perturbations. STARE radar observations of the pulsation electric field in the ionosphere are then compared with the corresponding magnetic perturbation observed with the TRIAD satellite magnetometer.

• Research Organization: Max-Planck-Institut fuer Aeronomie, D-3411 Katlenburg-Lindau 3, Federal Republic of Germany
• OSTI ID: 5024456
• Journal Information: J. Geophys. Res.; (United States), Vol. 87:A4
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
IONOSPHERE
ELECTRIC CURRENTS
PULSATIONS
MAGNETOSPHERE
DISTURBANCES
ELECTRIC FIELDS
GEOMAGNETIC FIELD
HYDROMAGNETIC WAVES
PLASMA
RESONANCE
CURRENTS
EARTH ATMOSPHERE
MAGNETIC FIELDS
PLANETARY IONOSPHERES
640201* - Atmospheric Physics- Auroral
Ionospheric
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