Accession Number : ADA141284

Title :   On the Linear Stability of Two-Dimensional Barium Clouds. I. The Inviscid Case.

Descriptive Note : Memorandum rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s) : Zalesak,S T ; Huba,J D

PDF Url : ADA141284

Report Date : 30 Apr 1984

Pagination or Media Count : 35

Abstract : We examine the linear stability of the steepened backside of two-dimensional ionospheric barium clouds. We derive expressions for the growth rate of perturbations on these backsides which are functions of (1) the ratio M of the integrated Pedersen conductivity inside the barium cloud to that of the background ionosphere; (2) the overall shape of the cloud; (3) the plasma density gradient scale length L of the steepened backside; and (4) the perturbation wavenumber k. For sufficiently small kL, the growth time as a function of M traces out the 'U-shaped curve' observed in previous studies. (Author)

Descriptors :   *Ionospheric modification, Plasmasphere, Barium, Ionization, Stability, Striations, Two dimensional, Clouds, Growth(General)

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE