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ISBN 13 :
Total Pages : 892 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Adm Nasa
Publisher :
ISBN 13 : 9781728889627
Total Pages : 38 pages
Book Rating : 4.8/5 (896 download)
Download or read book Properties of Large Scale Plasma Flow During the Early Stage of the Plasmaspheric Refilling written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-10-17 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective is to better characterize the macroscopic properties of the interhemisphere plasma flow by solving a more complete set of hydrodynamic equations than that solved previously. Specifically, the ion continuity, momentum and energy equations were solved for the plasma flow along the closed magnetic field lines. During the initial stage of the supersonic outflow in the equatorial region, the ions cool substantially. Using the hydrodynamic model for the large-scale plasma flow, the dynamics of shocks was examined which form in the geomagnetic flux tubes during the early stages of refilling. These shocks are more like those forming in neutral gases than the electrostatic shocks driven by microinstabilities involving ion-ion interaction. Therefore, the shocks seen in the hydrodynamic model are termed as hydrodynamic shocks. Such shocks are generally unsteady and therefore the usual shock jump conditions given by Rankine-Hugoniot relations are not strictly applicable to them. The density, flow velocity and temperature structures associated with the shocks are examined for both asymmetrical and symmetrical flows. In the asymmetrical flow the outflow from one of two conjugate ionospheres is dominant. On the other hand, in the symmetrical case outflows from the two ionospheric sources are identical. Both cases are treated by a two-stream model. In the late type of flow, the early-time refilling shows a relaxation type of oscillation, which is driven by the large-scale interactions between the two identical streams. After this early stage, the resulting temperature structure shows some interesting features. In the equatorial region the streams are isothermal, but in the off-equatorial regions the streams have quite different temperatures, and also densities and flow velocities. The dense and slow stream is found to be warmer than the low-density fast stream. In the late stage of refilling, the temperature is found to steadily increase from the conjugate ionospheres...
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ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (317 download)
Download or read book FY 1989 Scientific and Technical Reports, Articles, Papers, and Presentations written by and published by . This book was released on 1989 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 868 pages
Book Rating : 4.:/5 (31 download)
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1995 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1244 pages
Book Rating : 4.:/5 (89 download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996-09 with total page 1244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Scott Alan Thaller
Publisher : Frontiers Media SA
ISBN 13 : 2832505562
Total Pages : 342 pages
Book Rating : 4.8/5 (325 download)
Download or read book Coupled Feedback Mechanisms in the Magnetosphere-Ionosphere System written by Scott Alan Thaller and published by Frontiers Media SA. This book was released on 2022-11-14 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : COSPAR. Plenary Meeting
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ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.F/5 ( download)
Download or read book Geospace Plasmas written by COSPAR. Plenary Meeting and published by . This book was released on 1989 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : COSPAR. Plenary Meeting
Publisher : Elsevier Science & Technology
ISBN 13 :
Total Pages : 926 pages
Book Rating : 4.3/5 (91 download)
Download or read book Solar and Middle Atmosphere Variability written by COSPAR. Plenary Meeting and published by Elsevier Science & Technology. This book was released on 1989 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: These Proceedings describe recent observations and interpretation of, primarily, solar variability in total irradiance and in the UV, EUV, and X-ray spectral regions. In addition, two sections discuss variations, over the solar cycle, in other global properties including oscillations, rotation, convection, magnetic fields and solar radius. A few papers are included discussing solar induced variations in the Earth's middle atmosphere.
Author : T. E. Moore
Publisher : American Geophysical Union
ISBN 13 : 0875900704
Total Pages : 322 pages
Book Rating : 4.8/5 (759 download)
Download or read book Modeling Magnetospheric Plasma written by T. E. Moore and published by American Geophysical Union. This book was released on 1988 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 44. Existing models of the plasma distribution and dynamics in magnetosphere / ionosphere systems form a patchwork quilt of different techniques and boundaries chosen to define tractable problems. With increasing sophistication in both observational and modeling techniques has come the desire to overcome these limitations and strive for a more unified description of these systems. On the observational side, we have recently acquired routine access to diagnostic information on the lowest energy bulk plasma, completing our view of the plasma and making possible comparisons with magnetohydrodynamic calculations of plasma moments. On the theoretical side, rising computational capabilities and shrewdly designed computational techniques have permitted the first attacks on the global structure of the magnetosphere. Similar advances in the modeling of neutral atmospheric circulation suggest an emergent capability to globally treat the coupling between plasma and neutral gases. Simultaneously, computer simulation has proven to be a very useful tool for understanding magnetospheric behaviors on smaller space and time scales.
Author : Yaireska M. Collado-Vega
Publisher : Elsevier
ISBN 13 : 0323858147
Total Pages : 430 pages
Book Rating : 4.3/5 (238 download)
Download or read book Magnetospheric Imaging written by Yaireska M. Collado-Vega and published by Elsevier. This book was released on 2021-12-04 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetospheric Imaging: Understanding the Space Environment through Global Measurements is a state-of-the-art resource on new and advanced techniques and technologies used in measuring and examining the space environment on a global scale. Chapters detail this emergent field by exploring optical imaging, ultraviolet imaging, energetic neutral atom imaging, X-ray imaging, radio frequency imaging, and magnetic field imaging. Each technique is clearly described, with details about the technologies involved, how they work, and both their opportunities and limitations. Magnetospheric imaging is still a relatively young capability in magnetospheric research, hence this book is an ideal resource on this burgeoning field of study. This book is a comprehensive resource for understanding where the field stands, as well as providing a stepping stone for continued advancement of the field, from developing new techniques, to applying techniques on other planetary bodies. - Summarizes and reviews significant progress in the field of magnetospheric imaging - Covers all of the techniques and technologies available, including a basic overview of each, as well as what it can accomplish, how it works, what its limitations are, and how it might be improved - Details ways for measuring the space environment on a global scale, what physical measurements various technologies can provide, and how they can be effectively used
Author : Yukitoshi Nishimura
Publisher : Elsevier
ISBN 13 : 0128213736
Total Pages : 566 pages
Book Rating : 4.1/5 (282 download)
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
Author : Vania K. Jordanova
Publisher : Elsevier
ISBN 13 : 0128155728
Total Pages : 334 pages
Book Rating : 4.1/5 (281 download)
Download or read book Ring Current Investigations written by Vania K. Jordanova and published by Elsevier. This book was released on 2020-06-18 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ring Current Investigations offers a comprehensive description of ring current dynamics in the Earth's magnetosphere as part of the coupled magnetosphere-ionosphere system. In order to help researchers develop a deeper understanding of the fundamental physics of geomagnetic storms, it includes a detailed description of energetic charged particles injection, trapping, and loss. It reviews historical and recent advances in observations, measurements, theory and simulations of the inner magnetosphere and its coupling to the ionosphere and other surrounding plasma populations. In addition, it compares the physics of ring currents at other strongly magnetized planets in the solar system, specifically Jupiter, Saturn, Uranus and Neptune, with the ring current system at Earth. Providing a description of the most important space weather effects driven by inner magnetospheric energetic particles during geomagnetic storms and present capabilities for their nowcast and forecast, Ring Current Investigations is an important reference for researchers in geophysics and space science, especially related to plasma physics, the ionosphere and magnetosphere, solar-terrestrial relations, and spacecraft anomalies. - Includes an appendix with links to downloadable video clips, illustrating features of ring current and geomagnetic storm dynamics - Provides overview of existing state-of-the-art numerical models and links for open-source code downloads - Offers guidance on how to develop numerical models within the context of the present-day understanding
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ISBN 13 :
Total Pages : 352 pages
Book Rating : 4.2/5 (833 download)
Download or read book Geophysical Monograph written by and published by . This book was released on 1956 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fabien Darrouzet
Publisher : Springer Science & Business Media
ISBN 13 : 1441913238
Total Pages : 295 pages
Book Rating : 4.4/5 (419 download)
Download or read book The Earth's Plasmasphere written by Fabien Darrouzet and published by Springer Science & Business Media. This book was released on 2009-08-21 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: James L. Burch·C. Philippe Escoubet Originally published in the journal Space Science Reviews, Volume 145, Nos 1–2, 1–2. DOI: 10. 1007/s11214-009-9532-7 © Springer Science+Business Media B. V. 2009 The IMAGE and CLUSTER spacecraft have revolutionized our understanding of the inner magnetosphere and in particular the plasmasphere. Before launch, the plasmasphere was not a prime objective of the CLUSTER mission. In fact, CLUSTER might not have ever observed this region because a few years before the CLUSTER launch (at the beginning of the 1990s), it was proposed to raise the perigee of the orbit to 8 Earth radii to make multipoint measu- ments in the current disruption region in the tail. Because of ground segment constraints, this proposal did not materialize. In view of the great depth and breadth of plasmaspheric research and numerous papers published on the plasmasphere since the CLUSTER launch, this choice certainly was a judicious one. The fact that the plasmasphere was one of the prime targets in the inner magnetosphere for IMAGE provided a unique opportunity to make great strides using the new and comp- mentary measurements of the two missions. IMAGE, with sensitive EUV cameras, could for the rst time make global images of the plasmasphere and show its great variability d- ing storm-time. CLUSTER, with four-spacecraft, could analyze in situ spatial and temporal structures at the plasmapause that are particularly important in such a dynamic system.
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ISBN 13 :
Total Pages : 1120 pages
Book Rating : 4.3/5 (129 download)
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bengt Hultqvist
Publisher : Springer Science & Business Media
ISBN 13 : 940114477X
Total Pages : 491 pages
Book Rating : 4.4/5 (11 download)
Download or read book Magnetospheric Plasma Sources and Losses written by Bengt Hultqvist and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: This sixth volume in the ISSI Space Sciences Series is a fully integrated book that gives an authoritative overview of all aspects of the topic in a well-organized form. Leading international scientists from all over the world contributed consistent, cross-referenced articles of high scientific standard.
