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The Inner Magnetosphere: Physics and Modeling

ISBN: 978-0-87590-420-7
318 pages
January 2005, American Geophysical Union
The Inner Magnetosphere: Physics and Modeling (0875904203) cover image


Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 155.
As we become a space-faring culture, there is an increasing need for reliable methods to forecast the dynamics of electromagnetic fields, thermal plasma, and energetic particles in the geospace environment, as all these factors affect satellite-borne systems. From the electrodynamics viewpoint, on the other hand, the inner magnetosphere is a key element in the Sun-Earth connection chain of processes. Most notably, it is a region where a significant part of the storm-time energy input from the solar wind is deposited and dissipated.

Because the most interesting and crucially important phenomena, as noted, develop relatively close to Earth (in the transition region separating the innermost quasi-dipolar geomagnetic field from the magnetotail), understanding them is a complex task. Moreover, the stronger the disturbance, the deeper its impact penetrates into the inner magneto-sphere. In this region plasma no longer behaves like a fluid, and the motion of energetic charged particles becomes important for the dynamics of the system. This fact leaves “particle simulations” as a primary tool for studying and understanding the dynamics of the inner magnetosphere during storms. An integral element of such simulations is an electromagnetic field model. Recent studies of the inner magnetosphere have substantially improved our understanding of its dynamics while creating new paradigms and reviving old controversies.

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Table of Contents

Preface viii

A Historical Introduction to the Ring Current
David P. Stern 1

I. Sources and Losses of Inner Magnetosphere Particle Population

Sources, Transport, and Losses of Energetic Particles During Geomagnetic Storms
Vania K. Jordanova 9

Energetic Particle Losses From the Inner Magnetosphere
Hannu E. J. Koskinen 23

A Numerical Study on the Resonant Scattering Process of Relativistic Electrons
via Whistler-Mode Waves in the Outer Radiation Belt
Yuto Katoh, Takayuki Ono, and Masahide lizima 33

Structures of Sub-keV Ions Inside the Ring Current Region
M. Yamauchi, R. Lundin, L. Eliasson, D. Winningham, H. Reme, C, Vallat, I. Dandouras, and Cluster-CIS team 41

Quick Response of the Near-Earth Magnetotail to Changes in the Interplanetary Magnetic Field
Kumiko K. Hashimoto and Takashi Kikuchi 47

Narrow Plasma Streams as a Candidate to Populate the Inner Magnetosphere
V. A. Sergeev, D. A. Yahnin, K. Liou, M. F. Thomsen, and G. D. Reeves 55

Dynamics of Ions of Ionospheric Origin During Magnetic Storms: Their Acceleration
Mechanism and Transport Path to Ring Current
M. Nose, K. Takahashi, S. Ohtani, S. R Christon, and R. W. McEntire 61

II. Energetic Particle Acceleration Mechanisms

Particle Acceleration in the Inner Magnetosphere
D. N. Baker, S. R. Elkington, X. Li, and M. J. Wiltberger 73

The Energetic Electron Response to Magnetic Storms: HEO Satellite Observations
J. E Fennell, J. B. Blake, R. Friedel, and S. Kanekal 87

Global View of Energetic Particles During a Major Magnetic Storm
Timo Asikainen, Kalevi Mursula, Raine Kerttula, Reiner Friedel, Daniel Baker, Finn Soraas, Joseph E Fennell, and J. Bernard Blake 97

Magnetospheric Substorms and the Sources of Inner Magnetosphere Particle Acceleration
E. E. Antonova 105

Energization of the Inner Magnetosphere by Solar Wind Pressure Pulses
W. William Liu 113

Energetic Trapped Proton and Electron Flux Variations at Low Altitudes Measured Onboard
CORONAS-F Satellite During 2001, August-December, Their Connection with the Particle Flux
Variations in Geostationary Orbit
Sergey N. Kuznetsov and Irina N. Myagkova 121

Dynamics of the Earth's Radiation Belts During the Time Period
April 14-24, 2002 - Experimental Data
Irina N. Myagkova, Sergey N. Kuznetsov, Boris Yu. Yushkov, Yury I. Denisov, Ekaterina A. Murav'eva, and Joseph Lemaire 127

III. External Driving of the Inner Magnetosphere

Drivers of the Inner Magnetosphere
Natalia Yu. Ganushkina 135

Injection of Energetic Ions During the 31 March 0630 Substorm
Scot R. Elkington, Daniel N. Baker, and Michael Wiltberger 147

Storm-Substorm Coupling During 16 Hours of Dst Steadily at -150 nT
T. I. Pulkkinen, N. Yu. Ganushkina, £ Donovan, X. Li, G. D. Reeves, C. T. Russell, H. J. Singer, and J. A. Slavin 155

On the Relation Between Sub-Auroral Electric Fields, the Ring Current and the Plasmasphere
P. C. Brandt, J. Goldstein, P. C. Anderson, B.J. Anderson, R. DeMajistre, E. C. Roelof, and D. G. Mitchell 163

Transmission Line Model for Driving Plasma Convection in the Inner Magnetosphere
Takashi Kikuchi 1 73

IV. Observational Specification of the Inner Magnetosphere

Advances in Inner Magnetosphere Passive and Active Wave Research
James L. Green and Shing F. Fung 181

Probabilistic Forecasting of the Dst Index
Robert L. McPherron, George Siscoe, Nancy U. Crooker, and Nick Arge 203

Testing the Hypothesis That Charge Exchange Can Cause a Two-Phase Decay
M. W. Liemohn and J. U. Kozyra 211

Substorm Associated Spikes in High Energy Particle Precipitation
E. Spanswick, £ Donovan, W. Liu, D. Wallis, A. Aasnes, T. Hiebert, B. Jackel, M. Henderson, and H. Prey 227

Ring Current Behavior as Revealed by Energetic Proton Precipitation
F. Soraas, K. Aarsnes, D. V. Carlsen, K. Oksavik, and D. S. Evans 237

Proton Injections Into the Ring Current Associated With 0Z Variations During HILDCAA Events
M. I. Sandanger, F. Soraas, K. Aarsnes, K. Oksavik, D. S. Evans, and M. S. Greer 249

What Defines the Polar Cap and Auroral Oval Diameters?
Igor I. Alexeev 257

V. Large-Scale Models of the Inner Magnetosphere

Modeling Inner Magnetospheric Electric Fields: Latest Self-Consistent Results
Stanislav Sazykin, Robert W. Spiro, Richard A. Wolf, Frank R. Toffoletto, Nikolai Tsyganenko, J. Goldstein, and Marc R. Hairston 263

Comparison of MHD Simulations of Isolated and Storm Time Substorms
M. Wiltberger, 5. R. Elkington, T Guild, D. N. Baker, and  J. G. Lyon 271

Empirical Model of the Inner Magnetosphere H + Pitch Angle Distributions
Jacopo De Benedetti, Anna Milillo, Stefano Orsini Alessandro Mura, Elisabetta DeAngelis, and loannis A. Daglis 283

Global Magnetospheric Dynamics During Magnetic Storms of Different Intensities
V. V. Kalegaev and N. Yu. Ganushkina 293

A Back-Tracing Code to Study the Magnetosphere Transmission Function for Primary Cosmic Rays
Pavol Bobik, Matteo Boschini, Davide Grandi, Massimo Gervasi, Elisabetta Micelotta,
and Pier-Giorgio Rancoita 301

Investigation of 3D Energetic Particle Transport Inside Quiet-Time Magnetosphere
Using Particle Tracing in Global MHD Model
X. Shao, Shing F. Fung, L. C. Tan, K. Papadopoulos, M. Wiltberger, and M. C. Fok 307

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