Accession Number:

AD0681724

Title:

LOW FREQUENCY INTERCHANGE INSTABILITIES OF THE RING CURRENT BELT,

Descriptive Note:

Corporate Author:

CALIFORNIA UNIV LOS ANGELES PLASMA PHYSICS GROUP

Personal Author(s):

Report Date:

1969-01-01

Pagination or Media Count:

60.0

Abstract:

The stability of the ring current belt against low-frequency, electrostatic perturbations is analyzed, with the effect of a finite electric field along the magnetic line of force included. We find four possible instabilities--the hydromagnetic interchange, the trapping instability, the low-frequency flute mode, and the resonant interchange the conditions for their occurrence in the ring current belt are derived. Due to the parallel electric field associated with the instabilities, their main consequence is to precipitate charged particles into the ionosphere, leading to ring current pressure relaxation. Their possible relevance to observations is discussed. Author

Subject Categories:

  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE