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Modeling Magnetospheric Plasma Processes

Modeling Magnetospheric Plasma Processes

Gordon R. Wilson (Editor)

ISBN: 978-1-118-66390-5

Mar 2013, American Geophysical Union

182 pages

Select type: O-Book

Description

Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 62.

The ultimate goal of modeling of the plasma in Earth's environment is an understanding of the magnetosphere and ionosphere as a coupled global system. To achieve this goal requires a coordinated effort between models applied to different spatial scales. The desire to model this system on a global scale is leading to models which encompass larger and larger regions. The ever-increasing availability of computing resources has allowed models to expand to 2 and 3 dimensions. At the other extreme are the micro-scale processes which transfer energy to individual particles within the global system. As more detailed observations become available the necessity for accurately including such processes in the global models becomes more apparent. Then it becomes a question of how to incorporate the necessary physical processes from all scale sizes into a model of a global system. It now seems clear that such multi-scale scenarios exist where micro-scale processes provide energy to the plasma which flows outward from Earth into the distant magnetotail before returning to the near-Earth regions. The challenge of incorporating all relevant processes into a model of this entire plasma path is a formidable one. The existence of separate models of the separate steps along this pathway leads directly to efforts to fuse models with different scales into a single, self-consistent treatment.

PREFACE xi

INTRODUCTION Xlll

SOLAR WINDIMAGNETOPAUSE

1. The Magnetospheric and Ionospheric Response to Solar Wind Dynamic Pressure Variations
D. G. Sibeck 1

2. Numerical Simulations on the Magnetopause Current Layer
H. Okuda 9

3. Role of Small Scale Processes in Global Plasma Modeling
G. Ganguli 17

THE MAGNETOTAIL

4. Modeling of the Quasi-Steady Magnetotail
J. Birn 31

5. Plasma Transport in the Earth's Magnetotail
A. T. Y. Lui 41

6. Progress in the Study of Three-Dimensional Plasmoids
M. Hesse 55

7. Particle Orbits in Magnetospheric Currents Sheets: Accelerated Flows, Neutral Line Signature, and
Transition to Chaos
T. W. Speiser 71

8. Merging and the Single Particle
T. E. Moore 81

THE AURORAL ZONE

9. EIC Waves, Double Layers, and Solitary Waves in the Auroral Acceleration Region
D. Tetreault 91

10. Particle Simulation of the Interaction between Kinetic Alfven Waves and Double Layers
N. F. Otani 95

THE POLAR CAP/CUSP

11. Effects of Sudden Impluse in Electron Temperatures on the Polar Wind: A Time-Dependent Semi-Kinetic Model
C. W. Ho 105

12. Two-Spacecraft Charged Particle Observations Intepreted in Terms of Electrostatic Potential Drops
Along Polar Cap Field Lines
C. J. Pollock 111

13. Electron Density and Temperature in the Cusp and Polar Cap Regions: Contributions From the Wave and Particle Experiments on VIKING
P. M. E. Decreau 119

THE INNER MAGNETOSPHERE/PLASMASPHERE

14. Modeling of the Structure of Long-Period ULF Waves Using Energetic Particle Observations
K. Takahashi 129

15. The Electrostatic Drift Wave in the Inner Magnetosphere
T. S. Huang 135

16. Ring Current 0+ Interaction with Pc 5 Micropulsations
S. Qian 143

17. An Early-Stage Refilling Model Based on a Kinetic Approach with Trapping Due to Ion Heating and
Pitch-Angle Scattering
J. Lin 151

18. Modeling of Plasmaspheric Flows With an Equatorial Heat Source for Electrons
S. M. Guiter 157

19. 0+, H+, He+ Densities from 200-1600 km Altitude Ionosphere at Arecibo: A Comparison of Theory and Measurement
P. G. Richards 167

20. Preliminary Emperical Model of Plasmaspheric Ion Temperatures from DE-l/RIMS
P. D. Craven 173