## A study of small scale Alfvén waves in the aurora: instabilities and wave amplification |

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### Contents

Introduction | 1 |

Review of Observations of Alfvenic Structures | 14 |

TwoFluid Model Equations for Low Frequency Phenomena in | 59 |

Copyright | |

11 other sections not shown

### Common terms and phrases

American Geophysical Union analysis analytical approximation associated assume auroral arcs BBELF waves boundary condition chapter consider consistent current filaments current gradient driven density direction dispersion relationship double tearing mode driven interchange mode effect eigenfunction eigenmode electric field structures electron inertial length electrostatic potential equilibrium profile field line field perturbation flow driven mode flow profile flow shear fluctuations Freja satellite function given gradient driven interchange group velocity growth rate gyroradius ideal MHD IEDD inertial Alfven wave inhomogeneous magnetic field ionosphere Kelvin-Helmholtz instability kinetic linearized equations magnetic field magnetosphere over-reflection parallel current parallel electron parameters perpendicular electric field perpendicular magnetic field phase velocity physics Poynting flux propagating properties reflected resonance result scale length Seyler sheared current driven sheared flow driven shown in figure shows solar wind solution sounding rocket spatial stability Stasiewicz transverse ion acceleration unstable eigenmode unstable mode Wahlund wavelength wavenumber