Ionospheric plasmas: model derivation, stability
Christophe BesseUniversité Paul Sabatier, Toulouse, France
Jean ClaudelCEA / CESTA, Le Barp, France
P. DegondUniversité Paul Sabatier, Toulouse, France
F. DeluzetUniversité Paul Sabatier, Toulouse, France
Gerard Gallice2CEA–Centre d’Etudes Scientifiques et Techniques d, Le Barp, France
Christian Tessieras2CEA–Centre d’Etudes Scientifiques et Techniques d, Le Barp, France
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This paper is concerned with a review of models of ionospheric plasma. Two hierarchies of models are presented, both of them leading to the so-called striation model. A linear stability analysis is performed and shows that the striation model can developed plasma instabilities. A dissipation process has disappeared during the limiting process. In order to add a dissipation mechanism to the striation model, we propose to use a statistical approach to turbulence and derive a so-called ’turbulent striation model’. Numerical simulations are proposed to show the gain of stability.