Auroral Plasma Physics [Paperback]

1. Introduction.- 1.1 Visible Aurorae.- 1.2 Ionospheric Framework.- 1.3 Magnetospheric Framework.- 1.4 Magnetosphere-Ionosphere Coupling.- 1.5 Large Scale Magnetospheric Flows and Dynamics.- 1.6 An Overview of the Book.- 2. Remote Sensing of Auroral Arcs.- 2.1 Quiet Auroral Arc.- 2.2 Diffuse and Pulsating Aurora.- 2.3 Proper Motion of Auroral Arcs.- 2.4 Physical Characteristics.- 2.5 Auroral Morphology.- 2.6 Distortions in Auroral Arcs.- 2.7 Black Aurora.- 3. Theoretical Building Blocks.- 3.1 The Conducting Ionosphere.- 3.1.1 Ionospheric Conductivity.- 3.1.2 Conductivity from Electron Precipitation.- 3.2 Magnetospheric Current Sources.- 3.2.1 Generalized Ohms Law.- 3.2.2 Field-Aligned Current Generation.- 3.2.3 Energy Release, Transport and Conversion.- 3.2.4 Magnetospheric Driving of the Ionosphere.- 3.3 Parallel Electric Fields.- 3.3.1 Current-Voltage Relation in the Upward j? Regions.- 3.3.2 Current-Voltage Relation in the Downward j? Regions.- 3.3.3 The Nature of E?.- 3.3.4 Static Magnetosphere-Ionosphere Coupling.- 3.4 Dynamic Magnetosphere-Ionosphere Coupling.- 3.4.1 Ideal MHD Alfv?n Waves.- 3.4.2 Reflection of Alfv?n Waves.- 3.4.3 Two-Fluid Shear-Alfv?n Waves.- 3.5 Wave-Particle Interactions.- 3.5.1 Anomalous Resistivity.- 3.5.2 Transverse Ion Heating.- 3.5.3 Pitch Angle Diffusion.- 3.5.4 Phase-Space Holes.- 4. In Situ Measurements in the Auroral Plasma.- 4.1 Upward Current Region Processes.- 4.1.1 Electron Acceleration.- 4.1.2 Ion Beams and the Density Cavity.- 4.1.3 Electric Field Signature and Structure.- 4.1.4 Limitations of the Quasistatic Arc Model.- 4.2 Downward Current Region Processes.- 4.2.1 Upgoing Electrons.- 4.2.2 Ion Conics and Ion Precipitation.- 4.2.3 Electric Fields.- 4.2.4 Current-Voltage Relations.- 4.2.5 Limitations of a Quasistatic Model.- 4.3 Waves and Radiation.- 4.3.1 Beam Modification: AKR, VLF, BBELF, ESW.- 4.3.2 Ion Effects: EMIC, EIC, IAW, ELF.- 4.3.3 Diagnostic Wave Signatures.- 4.4 Time-Dependent Alfv?nic Processes.- 4.4.1 Wave lă+