Ionospheric plasmas: model derivation, stability

  • Christophe Besse

    Université Paul Sabatier, Toulouse, France
  • Jean Claudel

    CEA / CESTA, Le Barp, France
  • P. Degond

    Université Paul Sabatier, Toulouse, France
  • F. Deluzet

    Université Paul Sabatier, Toulouse, France
  • Gerard Gallice

    2CEA–Centre d’Etudes Scientifiques et Techniques d, Le Barp, France
  • Christian Tessieras

    2CEA–Centre d’Etudes Scientifiques et Techniques d, Le Barp, France
Ionospheric plasmas: model derivation, stability cover
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Abstract

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.