Magnetospheric-Ionospheric Poynting Flux - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Magnetospheric-Ionospheric Poynting Flux write by National Aeronautics and Space Administration (NASA). This book was released on 2018-07-18. Magnetospheric-Ionospheric Poynting Flux available in PDF, EPUB and Kindle. Over the past three years of funding SRI, in collaboration with the University of Texas at Dallas, has been involved in determining the total electromagnetic energy flux into the upper atmosphere from DE-B electric and magnetic field measurements and modeling the electromagnetic energy flux at high latitudes, taking into account the coupled magnetosphere-ionosphere system. This effort has been very successful in establishing the DC Poynting flux as a fundamental quantity in describing the coupling of electromagnetic energy between the magnetosphere and ionosphere. The DE-B satellite electric and magnetic field measurements were carefully scrutinized to provide, for the first time, a large data set of DC, field-aligned, Poynting flux measurement. Investigations describing the field-aligned Poynting flux observations from DE-B orbits under specific geomagnetic conditions and from many orbits were conducted to provide a statistical average of the Poynting flux distribution over the polar cap. The theoretical modeling effort has provided insight into the observations by formulating the connection between Poynting's theorem and the electromagnetic energy conversion processes that occur in the ionosphere. Modeling and evaluation of these processes has helped interpret the satellite observations of the DC Poynting flux and improved our understanding of the coupling between the ionosphere and magnetosphere. Thayer, Jeffrey P. Unspecified Center ATMOSPHERIC PHYSICS; ELECTRODYNAMICS; ELECTROMAGNETIC COUPLING; ENERGY TRANSFER; FLUX DENSITY; MAGNETOSPHERE-IONOSPHERE COUPLING; POLAR REGIONS; POYNTING THEOREM; DYNAMICS EXPLORER 2 SATELLITE; EARTH IONOSPHERE; EARTH MAGNETOSPHERE; GEOMAGNETISM; MATHEMATICAL MODELS; OHMIC DISSIPATION; RESISTANCE HEATING...
Solar Wind — Magnetosphere Coupling
Solar Wind — Magnetosphere Coupling - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Solar Wind — Magnetosphere Coupling write by Y. Kamide. This book was released on 1986-11-30. Solar Wind — Magnetosphere Coupling available in PDF, EPUB and Kindle. Based on papers from an AGU Chapman Conference on Solar Wind-Magnetosphere Coupling, held at the Jet Propulsion Laboratory of the California Institute of Technology, Pasadena, Calif., Feb. 12-15, 1985.
Alfvén Waves and Static Fields in Magnetosphere/ionosphere Coupling
Alfvén Waves and Static Fields in Magnetosphere/ionosphere Coupling - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Alfvén Waves and Static Fields in Magnetosphere/ionosphere Coupling write by David J. Knudsen. This book was released on 1990. Alfvén Waves and Static Fields in Magnetosphere/ionosphere Coupling available in PDF, EPUB and Kindle. Perturbation electric and magnetic fields carry in excess of 10(exp10) to 10(exp12) W of electrical power between the magnetosphere and high-latitude ionosphere. Most of this power is generated by the solar wind. The ionosphere at large spatial and temporal scales acts as a dissipative slab which can be characterized by its height-integrated Pedersen conductivity sigma p, so that the power flux into the ionosphere due to a quasi-static electric field E is given by sigma (pE2) The energy transferred to the ionosphere by time-varying electromagnetic fields in the form of Alfven waves is more difficult to calculate because density and conductivity gradients can reflect energy. Thus, field resonances and standing wave patterns affect the magnitude and altitude distribution of electrical energy dissipation. We use a numerical model to calculate the frequency-dependent electric field reflection coefficient of the ionosphere and show that the ionosphere does not behave as a simple resistive slab for electric field time scales less than a few seconds. Time variation of spacecraft-measured high-latitude electric and perturbation magnetic fields is difficult to distinguish from spatial structuring that has been Doppler-shifted to a non-zero frequency in the spacecraft frame. However, by calculating the frequency-dependent amplitude and phase relations between fluctuating electric and magnetic fields we are able to show that low frequency fields (
The Dynamic Magnetosphere
The Dynamic Magnetosphere - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Dynamic Magnetosphere write by William Liu. This book was released on 2011-06-21. The Dynamic Magnetosphere available in PDF, EPUB and Kindle. 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.
Cross-Scale Coupling and Energy Transfer in the Magnetosphere-Ionosphere-Thermosphere System
Cross-Scale Coupling and Energy Transfer in the Magnetosphere-Ionosphere-Thermosphere System - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Cross-Scale Coupling and Energy Transfer in the Magnetosphere-Ionosphere-Thermosphere System write by Yukitoshi Nishimura. This book was released on 2021-12-07. Cross-Scale Coupling and Energy Transfer in the Magnetosphere-Ionosphere-Thermosphere System available in PDF, EPUB and Kindle. 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
