The Inner Magnetosphere
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The Inner Magnetosphere
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Author : Nikolai A. Tsyganenko
language : en
Publisher: American Geophysical Union
Release Date : 2005-01-14
The Inner Magnetosphere written by Nikolai A. Tsyganenko and has been published by American Geophysical Union this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-01-14 with Science categories.
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.
Imaging The Inner Magnetosphere
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Author :
language : en
Publisher:
Release Date : 2001
Imaging The Inner Magnetosphere written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Magnetosphere categories.
Using advance imaging techniques, IMAGE provides comprehensive multispectral imaging of key magnetospheric plasma regions and boundaries. Includes the first images of low-energy neutral atoms from the solar wind and the ionosphere, the first results of magnetospheric sounding, and the first determination of the spatial distribution of the ring current and plasmasphere.
Ulf Waves Interaction With Cold And Thermal Particles In The Inner Magnetosphere
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Author : Jie Ren
language : en
Publisher: Springer
Release Date : 2019-08-14
Ulf Waves Interaction With Cold And Thermal Particles In The Inner Magnetosphere written by Jie Ren and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-08-14 with Science categories.
This thesis focuses on ULF (Ultra-low-frequency) waves' interaction with plasmasphere particles and ring current ions in the inner magnetosphere. It first reports and reveals mutual effect between ULF waves and plasmasphere using Van Allen Probes data. The differences and similarities of different ring current ions interacting with ULF waves are extensively explored using Cluster data, which provides a potential explanation for O+-dominated ring current during the magnetic storms. Furthermore, this thesis finds a method to study the phase relationship between ULF waves and drift-bounce resonant particles, and proposes that the phase relationship can be used to diagnose the parallel structure of standing wave electric field and energy transfer directions between waves and particles. The findings in this thesis can significantly promote our understanding of ULF waves' role in the dynamics of inner magnetosphere.
The Electrodynamics Of The Inner Magnetosphere During Major Geomagnetic Storms
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Author : Douglas E. Rowland
language : en
Publisher:
Release Date : 2002
The Electrodynamics Of The Inner Magnetosphere During Major Geomagnetic Storms written by Douglas E. Rowland and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Structure And Dynamics Of The Inner Magnetosphere And Their Effects On Radiation Belt Electrons
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Author : Chia-Lin Huang
language : en
Publisher:
Release Date : 2008
Structure And Dynamics Of The Inner Magnetosphere And Their Effects On Radiation Belt Electrons written by Chia-Lin Huang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Abstract: The goals of this dissertation are: (1) to understand the physics describing the structure and dynamics of magnetic field configurations in Earth's inner magnetosphere; (2) to assess the performance of data-based and physics-based global magnetospheric models under various conditions; and (3) to quantify the responses of global magnetic and electric fields to solar wind variations, and ultimately their effects on radial transport of radiation belt electrons. The radiation belt charged particle environment, the relativistic electrons in particular, changes by orders of magnitude on a variety of time scales in a complicated fashion. In order to understand and model the dynamic behavior of radiation belt electrons, we first need global, realistic, self-consistent, and time-dependent magnetospheric models. Therefore, we compare state-of-the-art empirical Tsyganenko models and Lyon-Fedder-Mobarry (LFM) physics-based code predictions with geosynchronous measurements to assess their performance and quantify the field configurations and fluctuations in the inner magnetosphere. The Tsyganenko storm model best predicts the large-scale field magnitude for all geomagnetic conditions, but fails to reproduce small-scale wave fields. On the other hand, the LFM code reproduces both the field configurations and ultra-low-frequency (ULF) waves during non-storm intervals. Next, we simulate the dynamics of radiation belt electrons using global magnetic and electric fields from the LFM code, driven by idealized solar wind over a range of velocities. We follow the trajectories of electrons, starting at different local times and radii for the same first adiabatic invariant, to understand their transport and energization through collective wave-particle interactions. Finally, we quantify the ULF wave effects on radiation belt electrons by calculating the radial diffusion coefficients from the LFM simulation results. The derived coefficients as a function of solar wind velocity, of 10 -4 to 1 day -1 in the outer electron belt, are comparable to observational results after normalizing for wave power. Using this method, we conclude that diffusive electron transport is well simulated for various solar wind conditions and geomagnetic activity levels, a significant step toward quantitative understanding of the complex, dynamical radiation belt environment.
Energetic Electron Transport In The Inner Magnetosphere During Geomagnetic Storms And Substorms
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-24
Energetic Electron Transport In The Inner Magnetosphere During Geomagnetic Storms And Substorms written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-24 with categories.
We propose to examine the relationship of geomagnetic storms and substorms and the transport of energetic particles in the inner magnetosphere using measurements of the auroral X-ray emissions by PIXIE. PIXIE provides a global view of the auroral oval for the extended periods of time required to study stormtime phenomena. Its unique energy response and global view allow separation of stormtime particle transport driven by strong magnetospheric electric fields from substorm particle transport driven by magnetic-field dipolarization and subsequent particle injection. The relative importance of substorms in releasing stored magnetospheric energy during storms and injecting particles into the inner magnetosphere and the ring current is currently hotly debated. The distribution of particles in the inner magnetosphere is often inferred from measurements of the precipitating auroral particles. Thus, the global distributions of the characteristics of energetic precipitating particles during storms and substorms are extremely important inputs to any description or model of the geospace environment and the Sun-Earth connection. We propose to use PIXIE observations and modeling of the transport of energetic electrons to examine the relationship between storms and substorms. McKenzie, D. L. and Anderson, P. C. Goddard Space Flight Center ATR-2005(7945)-1
Low Frequency Fluctuations In The Inner Magnetosphere
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Author : W. A. Lindsey
language : en
Publisher:
Release Date : 1968
Low Frequency Fluctuations In The Inner Magnetosphere written by W. A. Lindsey and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Explorer satellites categories.
Coupling Of The Inner Magnetosphere With The Underlying Atmosphere And Ionosphere
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-24
Coupling Of The Inner Magnetosphere With The Underlying Atmosphere And Ionosphere written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-24 with categories.
The following is a final report summarizing our very successful inner magnetosphere research program through which we have made significant contributions to: (1) research through data analysis, modeling and participation in community-wide campaigns, (2) the development of the space science discipline through leadership in national and international campaigns, service on steering committees, review panels and the development and maintenance of campaign and community web sites, (3) education and human resources by the participation of graduate, undergraduate and high school students in our research programs and (4) outreach through development of web-based materials and interactive games. We describe each of these activities below. Sharber, James M. (Technical Monitor) and Kozyra, Janet Goddard Space Flight Center
The Inner Magnetosphere Imager Mission
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Author : Dennis L. Gallagher
language : en
Publisher:
Release Date : 1994
The Inner Magnetosphere Imager Mission written by Dennis L. Gallagher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
Dynamics Of The Earth S Radiation Belts And Inner Magnetosphere
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Author : Danny Summers
language : en
Publisher: John Wiley & Sons
Release Date : 2013-05-09
Dynamics Of The Earth S Radiation Belts And Inner Magnetosphere written by Danny Summers and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-09 with Science categories.
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 199. Dynamics of the Earth's Radiation Belts and Inner Magnetosphere draws together current knowledge of the radiation belts prior to the launch of Radiation Belt Storm Probes (RPSP) and other imminent space missions, making this volume timely and unique. The volume will serve as a useful benchmark at this exciting and pivotal period in radiation belt research in advance of the new discoveries that the RPSP mission will surely bring. Highlights include the following: a review of the current state of the art of radiation belt science; a complete and up-to-date account of the wave-particle interactions that control the dynamical acceleration and loss processes of particles in the Earth's radiation belts and inner magnetosphere; a discussion emphasizing the importance of the cross-energy coupling of the particle populations of the radiation belts, ring current, and plasmasphere in controlling the dynamics of the inner magnetosphere; an outline of the design and operation of future satellite missions whose objectives are to discover the dominant physical processes that control the dynamics of the Earth's radiation belts and to advance our level of understanding of radiation belt dynamics ideally to the point of predictability; and an examination of the current state of knowledge of Earth's radiation belts from past and current spacecraft missions to the inner magnetosphere. Dynamics of the Earth's Radiation Belts and Inner Magnetosphere will be a useful reference work for the specialist researcher, the student, and the general reader. In addition, the volume could be used as a supplementary text in any graduate-level course in space physics in which radiation belt physics is featured.