Download or read book The Magnetospheric Cusps Structure and Dynamics written by Theodore A. Fritz and published by Springer Science & Business Media. This book was released on 2006-02-23 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of papers will address the question "What is the Magnetospheric Cusp?" and what is its role in the coupling of the solar wind to the magnetosphere as well as its role in the processes of particle transport and energization within the magnetosphere. The cusps have traditionally been described as narrow funnel-shaped regions that provide a focus of the Chapman-Ferraro currents that flow on the magnetopause, a boundary between the cavity dominated by the geomagnetic field (i.e., the magnetosphere) and the external region of the interplanetary medium. Measurements from a number of recent satellite programs have shown that the cusp is not confined to a narrow region near local noon but appears to encompass a large portion of the dayside high-latitude magnetosphere and it appears that the cusp is a major source region for the production of energetic charged particles for the magnetosphere. Audience: This book will be of interest to space science research organizations in governments and industries, the community of Space Physics scientists and university departments of physics, astronomy, space physics, and geophysics.
Download or read book The Magnetospheric Cusps written by and published by . This book was released on 2005 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Special Issue on the Magnetospheric Cusps Structure and Dynamics written by Theodore A. Fritz and published by . This book was released on 2005 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Physics and Aeronomy Magnetospheres in the Solar System written by Romain Maggiolo and published by John Wiley & Sons. This book was released on 2021-05-04 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of current knowledge and future research directions in magnetospheric physics In the six decades since the term 'magnetosphere' was first introduced, much has been theorized and discovered about the magnetized space surrounding each of the bodies in our solar system. Each magnetosphere is unique yet behaves according to universal physical processes. Magnetospheres in the Solar System brings together contributions from experimentalists, theoreticians, and numerical modelers to present an overview of diverse magnetospheres, from the mini-magnetospheres of Mercury to the giant planetary magnetospheres of Jupiter and Saturn. Volume highlights include: Concise history of magnetospheres, basic principles, and equations Overview of the fundamental processes that govern magnetospheric physics Tools and techniques used to investigate magnetospheric processes Special focus on Earth’s magnetosphere and its dynamics Coverage of planetary magnetic fields and magnetospheres throughout the solar system Identification of future research directions in magnetospheric physics The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals. Find out more about the Space Physics and Aeronomy collection in this Q&A with the Editors in Chief
Download or read book Earth s Magnetosphere written by Wayne Keith and published by Academic Press. This book was released on 2020-11-24 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earth's Magnetosphere: Formed by the Low Latitude Boundary Layer, Second Edition, provides a fully updated overview of both historical and current data related to the magnetosphere and how it is formed. With a focus on experimental data and space missions, the book goes in depth relating space physics to the Earth's magnetosphere and its interaction with the solar wind. Starting with Newton's law, this book also examines Maxwell's equations and subsidiary equations such as continuity, constitutive relations and the Lorentz transformation, Helmholtz' theorem, and Poynting's theorem, among other methods for understanding this interaction.This new edition of Earth's Magnetosphere is updated with information on such topics as 3D reconnection, space weather implications, recent missions such as MMS, ionosphere outflow and coupling, and the inner magnetosphere. With the addition of end-of-chapter problems as well, this book is an excellent foundational reference for geophysicists, space physicists, plasma physicists, and graduate students alike. - Offers an historical perspective of early magnetospheric research, combined with progress up to the present - Describes observations from various spacecraft in a variety of regions, with explanations and discussions of each - Includes chapters on prompt particle acceleration to high energies, plasma transfer event, and the low latitude boundary layer
Download or read book Earth s Magnetosphere written by Walter Heikkila and published by Elsevier. This book was released on 2011-08-13 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author argues that, after five decades of debate about the interactive of solar wind with the magnetosphere, it is time to get back to basics. Starting with Newton's law, this book also examines Maxwell's equations and subsidiary equations such as continuity, constitutive relations and the Lorentz transformation; Helmholtz' theorem, and Poynting's theorem, among other methods for understanding this interaction. - Includes chapters on prompt particle acceleration to high energies, plasma transfer event, and the low latitude boundary layer - More than 200 figures illustrate the text - Includes a color insert
Download or read book The Polar Cusp written by J.A. Holtet and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings are based upon introductory talks, research reports and discussions from the NATO Advanced Workshop on the "Morphology and Dynamics of the Polar Cusp", held at Lillehammer, Norway, 7-12 May, 1984. The upper atmosphere at high latitudes is called the "Earth's win dow to outer space". Through various electrodynamic coupling process es as well as through direct transfer of particles many geophysical effects displayed there are direct manifestations of phenomena occurring in the deep space. The high latitude ionosphere will also exert a feedback on the regions of the magnetosphere and atmosphere to which it is coupled, acting as a momentum and energy source and sink, and a source of particles. Of particular interest are the sections of the near space known as the Polar Cusp. A vast portion of the earth's magnetic field envelope is electrically connected to these regions. This geometry results in a spatial mapping of the magnetospheric pro cesses and a focusing on to the ionosphere. In the Polar Cusps the solar wind plasma has also direct access to the upper atmosphere. The polar regions are thus of extreme importance when it comes to under standing the physical processes in the near space and their effect on our environment. The Introductory Talks given at this workshop provided a common background for discussing and understanding the physics of the Polar Cusp. By this book we will make the information which thus was provid ed to the participants of the workshop accessible to a wider audience.
Download or read book Structure and Dynamics of High Latitude Magnetospheric Boundaries written by Hui Zhang and published by . This book was released on 2008 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Mass, momentum and energy are transferred from the solar wind into the magnetosphere via their interface, the magnetospheric boundaries. High latitude boundaries including the high latitude magnetopause, cusp, entry layer and mantle have been rarely studied since only a few spacecraft have visited there. There are many long standing open questions about high latitude boundaries, e.g., what is the magnetic structure of high latitude boundaries during various interplanetary magnetic field (IMF) conditions? Do the boundaries lose their distinct well-defined edge during southward IMF conditions? How do they respond to outside (solar wind) and inside (magnetic storm and substorm) conditions? What is the behavior of energetic particles in these regions? This dissertation addresses these questions via extensive Cluster data analysis and comparison with global MHD simulations. First, this dissertation presents a statistical study of energetic particles in the cusp region. It presents the first observation that energetic ions exist in the high latitude magnetospheric boundary regions for 80% of the cusp crossings. The spectra of energetic particles with energies greater than 30 keV become flatter for higher solar wind speeds. Second, the high latitude magnetopause has also been studied. When the IMF is northward, the magnetopause adjacent to the cusp is associated with sharp changes in plasma density, velocity, temperature and magnetic field. However, this interface becomes uncertain when the IMF turns southward. A superposed epoch analysis was applied to study the average variations of key plasma parameters across the magnetopause under different conditions for the first time. This dissertation reports the first in-situ observation of collisionless Hall reconnection at the high latitude magnetopause when the IMF B y dominates. Finally, this dissertation compares observations to MHD simulations for a real cusp event. Although the simulated magnetospheres are smaller than the real magnetosphere, the simulated magnetic fields and the amplitude of the model-derived plasma parameters of density, velocity and temperature in the cusp region agree reasonably well with observations. The MHD code qualitatively simulated the responses of the cusp position to the solar wind azimuthal flow for the first time and the formation of the cold dense plasma sheet.
Download or read book Dayside Magnetosphere Interactions written by Qiugang Zong and published by John Wiley & Sons. This book was released on 2020-03-13 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploring the processes and phenomena of Earth’s dayside magnetosphere Energy and momentum transfer, initially taking place at the dayside magnetopause, is responsible for a variety of phenomenon that we can measure on the ground. Data obtained from observations of Earth’s dayside magnetosphere increases our knowledge of the processes by which solar wind mass, momentum, and energy enter the magnetosphere. Dayside Magnetosphere Interactions outlines the physics and processes of dayside magnetospheric phenomena, the role of solar wind in generating ultra-low frequency waves, and solar wind-magnetosphere-ionosphere coupling. Volume highlights include: Phenomena across different temporal and spatial scales Discussions on dayside aurora, plume dynamics, and related dayside reconnection Results from spacecraft observations, ground-based observations, and simulations Discoveries from the Magnetospheric Multiscale Mission and Van Allen Probes era Exploration of foreshock, bow shock, magnetosheath, magnetopause, and cusps Examination of similar processes occurring around other planets The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals.
Download or read book Space Physics and Aeronomy Magnetospheres in the Solar System written by Romain Maggiolo and published by John Wiley & Sons. This book was released on 2021-04-14 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Überblick über den aktuellen Wissensstand und künftige Forschungsrichtungen in der Magnetosphärenphysik In den sechs Jahrzehnten seit der Einführung des Begriffs ?Magnetosphäre? sind über den magnetisierten Raum, der jeden Körper in unserem Sonnensystem umgibt, viele Theorien entstanden und viele Erkenntnisse gewonnen worden. Jede Magnetosphäre ist einzigartig und verhält sich doch entsprechend den universellen physikalischen Vorgängen. Der Band ?Magnetospheres in the Solar System? enthält Beiträge von Experten für Experimentalphysik, theoretische Physik und numerische Modellierung, die einen Überblick über verschiedene Magnetosphären vermitteln, von der winzigen Magnetosphäre des Merkur bis zu den gewaltigen planetarischen Magnetosphären von Jupiter und Saturn. Das Werk bietet insbesondere: * Einen kompakten Überblick über die Geschichte der Magnetosphäre, ihre Grundsätze und Gleichungen * Eine Zusammenfassung der grundlegenden Prozesse in der Magnetospährenphysik * Instrumente und Techniken zur Untersuchung von Prozessen in der Magnetosphäre * Eine besondere Schwerpunktsetzung auf die Magnetosphäre der Erde und ihre Dynamik * Eine Darstellung der planetaren Magnetfelder und Magnetosphären im gesamten Sonnensystem * Eine Definition der künftigen Forschungsrichtungen in der Magnetosphärenphysik Die Amerikanische Geophysikalische Vereinigung fördert die wissenschaftliche Erforschung der Erde und des Weltraums zum Wohle der Menschheit. In ihren Publikationen werden wissenschaftliche Erkenntnisse veröffentlicht, die Forschern, Studenten und Fachkräften zur Verfügung stehen.
Download or read book Advances in Global Magnetospheric Structure Dynamics and Region Coupling written by COSPAR. Scientific Assembly and published by . This book was released on 2002 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Dynamic Magnetosphere written by William Liu and published by Springer Science & Business Media. This book was released on 2011-06-21 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the plethora of monographs published in recent years, few cover recent progress in magnetospheric physics in broad areas of research. While a topical focus is important to in-depth views at a problem, a broad overview of our field is also needed. The volume answers to the latter need. With the collection of articles written by leading scientists, the contributions contained in the book describe latest research results in solar wind-magnetosphere interaction, magnetospheric substorms, magnetosphere-ionosphere coupling, transport phenomena in the plasma sheet, wave and particle dynamics in the ring current and radiation belts, and extra-terrestrial magnetospheric systems. In addition to its breadth and timeliness, the book highlights innovative methods and techniques to study the geospace.
Download or read book Cross Scale Coupling and Energy Transfer in the Magnetosphere Ionosphere Thermosphere System written by Yukitoshi Nishimura and published by Elsevier. This book was released on 2021-12-07 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cross-Scale Coupling and Energy Transfer in the Magnetosphere-Ionosphere-Thermosphere System provides a systematic understanding of Magnetosphere-Ionosphere-Thermosphere dynamics. Cross-scale coupling has become increasingly important in the Space Physics community. Although large-scale processes can specify the averaged state of the system reasonably well, they cannot accurately describe localized and rapidly varying structures in space in actual events. Such localized and variable structures can be as intense as the large-scale features. This book covers observations on quantifying coupling and energetics and simulation on evaluating impacts of cross-scale processes. It includes an in-depth review and summary of the current status of multi-scale coupling processes, fundamental physics, and concise illustrations and plots that are usable in tutorial presentations and classrooms. Organized by physical quantities in the system, Cross-Scale Coupling and Energy Transfer in the Magnetosphere-Ionosphere-Thermosphere System reviews recent advances in cross-scale coupling and energy transfer processes, making it an important resource for space physicists and researchers working on the magnetosphere, ionosphere, and thermosphere. Describes frontier science and major science around M-I-T coupling, allowing for foundational understanding of this emerging field in space physics Reviews recent and key findings in the cutting-edge of the science Discusses open questions and pathways for understanding how the field is evolving
Download or read book Energetic Particles in the Earth s Magnetospheric CUSPS written by Brian M. Walsh and published by . This book was released on 2012 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The Earth's magnetic cusps are the regions with the most direct transfer of energy, mass, and momentum from the flowing solar wind to the Earth's magnetosphere. Spacecraft observations in the cusp have revealed a high energy component to the thermal particle distribution. This has raised the question as to whether significant plasma heating may also be occurring in this region. Since the cusp is magnetically connected to a number of other regions in geospace, plasma heating in this region could be a significant contributor to magnetospheric dynamics. The goal of this thesis is to answer the question, what is the source of the energetic particle population in the cusp? Since the initial observations measuring the energetic component were made, the source of the energetic population has been open to conjecture. A number of sources have been proposed: (1) the terrestrial bow shock, (2) the Earth's high-latitude trapping region, and (3) heating of plasma locally in the cusp. Depending on which source is the dominant provider of the energetic particles, the particle population will exhibit different properties. Particle flow direction, intensity, spectral characteristics, and species/charge state are all properties that can change depending on the dominant source. In-situ measurements by the ISEE, Polar, and Cluster spacecraft are used to derive the particle properties. These properties are compared with predictions for each of the proposed sources to determine which is most consistent with the observations. Case studies show that, under different conditions, the high-latitude trapping region and local heating can both be the dominant source of the energetic particle population up to energies of hundreds of keV. Results from a large scale statistical study, however, are more consistent with local heating indicating that this is the dominant source the majority of the time.
Download or read book Advances in Geosciences written by W.-H. Ip and published by World Scientific Publishing Company. This book was released on 2006 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Neither biography, hagiography, or demonization, The Obama Effect provides a refreshingly balanced interrogation of many issues the candidacy and presidency of Barack Obama has unearthed in American society, politics, and identity construction. It is an important contribution to a much-needed substantive body of work trapped neither by Obamanania nor Obamaphobia. This is a highly recommended read ranging across disciplines." - Ricky L. Jones, author of What's Wrong with Obamamania?: Black America, Black Leadership, and the Death of Political Imagination
Download or read book Outer Magnetospheric Boundaries Cluster Results written by Goetz Paschmann and published by Springer Science & Business Media. This book was released on 2006-06-28 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: 8. 8 Boundary Layer Structure and Detached Plasma 305 8. 8. 1 Background 305 8. 8. 2 Structure inside the boundary layer 306 8. 8. 3 Observation of detached plasma 308 8. 8. 4 Summary 309 8. 9 Summary and Conclusions 310 References 312 9. CLUSTER AT THE MAGNETOSPHERIC CUSPS 321 9. 1 Introduction 321 9. 1. 1 Previous work 323 9. 1. 2 How Cluster investigates the cusp 325 9. 2 The High-Altitude Cusp 326 9. 2. 1 March 17, 2001 328 9. 2. 2 February 4, 2001 332 9. 2. 3 February 13, 2001 337 9. 2. 4 Statistical survey 340 9. 2. 5 Waves and turbulence 343 9. 3 The Mid-Altitude Cusp 352 9. 3. 1 Structure: Case study 352 9. 3. 2 Structure: Statistical survey 354 9. 3. 3 Ionospheric ions 354 9. 3. 4 Mid-altitude signatures of the LLBL 357 9. 4 Discussion 359 References 360 10. MAGNETOPAUSE PROCESSES 367 10. 1 Magnetopause Reconnection 368 10. 1. 1 Intermittent vs. quasi-steady reconnection 368 10. 1. 2 Component vs. anti-parallel reconnection 382 10. 1. 3 Tailward-of-the-cusp reconnection 385 10. 1. 4 Quantitative tests of reconnection occurrence 388 10. 1. 5 Summary 391 10. 2 Kelvin-Helmholtz Instability at the Flank Magnetopause 391 10. 3 Microphysics of Magnetopause Processes 396 10. 3. 1 Collisionless generalised Ohm’s law 397 10. 3. 2 Ion di?usion region observations 398 10. 3. 3 High-frequency waves 402 10. 3. 4 Lower-hybrid waves 405 10. 3.
Download or read book Earth s magnetospheric cusps written by M.F. SMITH and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
