A three-dimensional simulation of collisional-interchange-instability in the equatorial-low-latitude ionosphere

We present a three-dimensional simulation of collisional-interchange-instability in the equatorial-low-latitude F region of ionosphere. The instability is responsible for the generation of large plasma density depletion or bubble. General 3D potential and continuity equations are derived to simulate...

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Bibliographic Details
Published in:Space science reviews 2005-11, Vol.121 (1-4), p.253-269
Main Authors: KHERANI, Alam E, MASCARENHAS, Matheus, DE PAULA, Eurico R, SOBRAL, Jose H. A, BERTONI, Fernando
Format: Article
Language:English
Subjects:
Earth, ocean, space
Exact sciences and technology
Ionosphere
Latitude
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Summary:We present a three-dimensional simulation of collisional-interchange-instability in the equatorial-low-latitude F region of ionosphere. The instability is responsible for the generation of large plasma density depletion or bubble. General 3D potential and continuity equations are derived to simulate the phenomena. To understand the linear aspect of the instability, the general 3D linear growth rate is derived using 3D potential equation. The linear growth characteristics are compared with earlier field-aligned-integrated growth analyses. The numerical simulation of bubble in the 3D spherical polar geometry is finally presented. Distinct evolution characteristics of bubble in 3D and 2D simulation are further discussed.
ISSN:0038-6308
1572-9672
DOI:10.1007/s11214-006-6158-x