Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Space And Ground Based Measurements Of Radiation Belt Precipitation
Download Space And Ground Based Measurements Of Radiation Belt Precipitation full books in PDF, epub, and Kindle. Read online Space And Ground Based Measurements Of Radiation Belt Precipitation ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Space-and Ground-based Measurements of Radiation Belt Precipitation by : Diana Hernandez Juarez Madera
Download or read book Space-and Ground-based Measurements of Radiation Belt Precipitation written by Diana Hernandez Juarez Madera and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall dynamics of the Earth's radiation belts is governed by the constant competition between source and sink mechanisms. The purpose of this work is to advance our understanding of sink or loss processes due to energetic particle precipitation from the radiation belts into the atmosphere. We seek to assess and compare in situ space measurements of precipitating particles to ground-based remote sensing of their signature in the atmosphere. We use data collected by the Focused Investigations of Relativistic Electron Burst Intensity, Range and Dynamics II (FIREBIRD-II) CubeSats during conjunction times with Poker Flat Incoherent Scatter Radar (PFISR), as well as data collected by PFISR itself. In the ionosphere's D-region, the ionization rate cannot be directly measured, therefore it must be estimated from other measurements. From space-based measurements, we use precipitating particle flux to find ionization rate in the atmosphere through the Electron Precipitation Monte Carlo (EPMC) transport method. This ionization rate is used to calculate the expected electron density in the D-region through chemistry simulations using the Glukhov-Pasko-Inan five species (GPI5) atmospheric chemistry model. From ground-based measurements, we extract the ionization rate using inverse theory, particularly using a Bayesian perspective we obtain the ionization rate, with uncertainties in all associated parameters, from measurements of electron density of sub-relativistic and relativistic electron precipitation taking into consideration the time dependent nature of the detection signatures. The benefit of a time-dependent inversion method is critical when precipitation changes on timescales faster then relaxation. The method was tested on synthetic data and applied to specific data sets measured by PFISR with the goal to extend data capability from single-point to multi-point scales. The method is able to retrieve the ionization curves that return the expected electron densities when forward modeled, which validates our results. The modeled electron density captures the small scale structure of the precipitation with values 1-2 orders of magnitude lower than the electron density observed by the radar. Therefore, the need for inversion techniques that could take us from radar observed quantities to spacecraft observables arises. For one of the cases, assuming an exponential energy distribution led to a mean absolute percent error of approximately 22 % when comparing the ionization rate altitude profile fit to the curve inferred by inverting PFISR electron density. However, an arbitrary energy distribution improved the fit to the ionization rate as it produced an error of approximately 11.11 %, about half than the that of the previously assumed exponential distribution. For the other case, the error was approximately 10.82 with an arbitrary energy distribution. For both of these cases, the arbitrary energy distribution inversion results are comparable in magnitude and shape to those presented in Turunen et al. 2016 for the inversion of a single event of pulsating aurora observed by EISCAT. The methods established in this thesis provide a back and forth path between space and ground measurements of energetic electron precipitation, that can be extended beyond the D-region. The ionization rate inversion technique is applicable to any atmospheric chemistry model, it provides time dependent remote estimation of ionization rate in the D-region that can be used to infer the energy distribution of precipitation without assuming any particular spectral shape. This is accomplished with good temporal coverage and can be used to carry continuous diagnostics of high energy precipitating phenomena.
Book Synopsis The Dynamic Loss of Earth's Radiation Belts by : Allison Jaynes
Download or read book The Dynamic Loss of Earth's Radiation Belts written by Allison Jaynes and published by Elsevier. This book was released on 2019-09-05 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dynamic Loss of Earth's Radiation Belts: From Loss in the Magnetosphere to Particle Precipitation in the Atmosphere presents a timely review of data from various explorative missions, including the Van Allen Probes, the Magnetospheric Multiscale Mission (which aims to determine magnetopause losses), the completion of four BARREL balloon campaigns, and several CubeSat missions focusing on precipitation losses. This is the first book in the area to include a focus on loss, and not just acceleration and radial transport. Bringing together two communities, the book includes contributions from experts with knowledge in both precipitation mechanisms and the effects on the atmosphere. There is a direct link between what gets lost in the magnetospheric radiation environment and the energy deposited in the layers of our atmosphere. Very recently, NASA’s Living With a Star program identified a new, targeted research topic that addresses this question, highlighting the timeliness of this precise science. The Dynamic Loss of Earth's Radiation Belts brings together scientists from the space and atmospheric science communities to examine both the causes and effects of particle loss in the magnetosphere. Examines both the causes and effects of particle loss in the magnetosphere from multiple perspectives Presents interdisciplinary content that bridges the gap, through communication and collaboration, between the magnetospheric and atmospheric communities Fills a gap in the literature by focusing on loss in the radiation belt, which is especially timely based on data from the Van Allen Probes, the Magnetospheric Multiscale Mission, and other projects Includes contributions from various experts in the field that is organized and collated by a clear-and-consistent editorial team
Book Synopsis The Van Allen Probes Mission by : Nicola Fox
Download or read book The Van Allen Probes Mission written by Nicola Fox and published by Springer. This book was released on 2016-09-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Documents the science, the mission, the spacecraft and the instrumentation on a unique NASA mission to study the Earth’s dynamic, dangerous and fascinating Van Allen radiation belts that surround the planet This collection of articles provides broad and detailed information about NASA’s Van Allen Probes (formerly known as the Radiation Belt Storm Probes) twin-spacecraft Earth-orbiting mission. The mission has the objective of achieving predictive understanding of the dynamic, intense, energetic, dangerous, and presently unpredictable belts of energetic particles that are magnetically trapped in Earth’s space environment above the atmosphere. It documents the science of the radiation belts and the societal benefits of achieving predictive understanding. Detailed information is provided about the Van Allen Probes mission design, the spacecraft, the science investigations, and the onboard instrumentation that must all work together to make unprecedented measurements within a most unforgiving environment, the core of Earth’s most intense radiation regions. This volume is aimed at graduate students and researchers active in space science, solar-terrestrial interactions and studies of the upper atmosphere. Originally published in Space Science Reviews, Vol. 179/1-4, 2013.
Book Synopsis Ground-based estimates of outer radiation belt energetic electron precipitation fluxes into the atmosphere by : M.A. Clilverd
Download or read book Ground-based estimates of outer radiation belt energetic electron precipitation fluxes into the atmosphere written by M.A. Clilverd and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamics of the Earth's Radiation Belts and Inner Magnetosphere by : Danny Summers
Download or read book Dynamics of the Earth's Radiation Belts and Inner Magnetosphere written by Danny Summers and published by John Wiley & Sons. This book was released on 2013-05-09 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Radiation and Water in the Climate System by : Ehrhard Raschke
Download or read book Radiation and Water in the Climate System written by Ehrhard Raschke and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of the earth's climate requires reliable global data sets to validate numerical simulation models and to identify regional and global fluctuations and trends. This book presents ways to obtain such data from space-borne and ground-based measurements, both passive and active, over the entire electromagnetic spectrum. It describes the basics of such methods together with the most recent advancements and spans the field from clouds and the planetary radiation budget to surface processes and ocean properties. Each subject is backed by extensive reference lists to enable readers to probe more deeply.
Book Synopsis Global Assessment of Precipitation of Radiation Belt Electrons by Electromagnetic Waves from Lightning by : Erin Selser Gemelos
Download or read book Global Assessment of Precipitation of Radiation Belt Electrons by Electromagnetic Waves from Lightning written by Erin Selser Gemelos and published by Stanford University. This book was released on 2011 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: lifetime of radiation belt electrons, particularly at low energies (100--300keV) within the slot region (2
Book Synopsis Waves, Particles, and Storms in Geospace by : Georgios Balasis
Download or read book Waves, Particles, and Storms in Geospace written by Georgios Balasis and published by Oxford University Press. This book was released on 2016 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents an overview of the complex interplay of particles, fields, waves and currents in geospace, with an emphasis on wave-particle interactions and radiation belt dynamics.
Book Synopsis Space Weather Fundamentals by : George V. Khazanov
Download or read book Space Weather Fundamentals written by George V. Khazanov and published by CRC Press. This book was released on 2016-11-17 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Space weather is one of the most significant natural hazards to human life and health. Conditions of the sun and in the solar wind, magnetosphere, ionosphere, and thermosphere can influence the performance and reliability of space-borne and ground-based technological systems. If conditions in the space environment are adverse, they can cause disruption of satellite operations, communications, navigation, and electric power distribution grids, leading to a variety of socioeconomic losses. This book provides an overview of our current knowledge and theoretical understanding of space weather formation and covers all major topics of this phenomena, from the sun to the Earth’s ionosphere and thermosphere, thus providing a fully updated review of this rapidly advancing field. The book brings together an outstanding team of internationally recognised contributors to cover topics such as solar wind, the earth's magnetic field, radiation belts, the aurora, spacecraft charging, orbital drag and GPS.
Book Synopsis Solar and Space Physics by : National Research Council
Download or read book Solar and Space Physics written by National Research Council and published by National Academies Press. This book was released on 2014-09-25 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2010, NASA and the National Science Foundation asked the National Research Council to assemble a committee of experts to develop an integrated national strategy that would guide agency investments in solar and space physics for the years 2013-2022. That strategy, the result of nearly 2 years of effort by the survey committee, which worked with more than 100 scientists and engineers on eight supporting study panels, is presented in the 2013 publication, Solar and Space Physics: A Science for a Technological Society. This booklet, designed to be accessible to a broader audience of policymakers and the interested public, summarizes the content of that report.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309373085 Total Pages :254 pages Book Rating :4.3/5 (93 download)
Book Synopsis A Strategy for Active Remote Sensing Amid Increased Demand for Radio Spectrum by : National Academies of Sciences, Engineering, and Medicine
Download or read book A Strategy for Active Remote Sensing Amid Increased Demand for Radio Spectrum written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2015-09-21 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Active remote sensing is the principal tool used to study and to predict short- and long-term changes in the environment of Earth - the atmosphere, the oceans and the land surfaces - as well as the near space environment of Earth. All of these measurements are essential to understanding terrestrial weather, climate change, space weather hazards, and threats from asteroids. Active remote sensing measurements are of inestimable benefit to society, as we pursue the development of a technological civilization that is economically viable, and seek to maintain the quality of our life. A Strategy for Active Remote Sensing Amid Increased Demand for Spectrum describes the threats, both current and future, to the effective use of the electromagnetic spectrum required for active remote sensing. This report offers specific recommendations for protecting and making effective use of the spectrum required for active remote sensing.
Book Synopsis Theory of Space Plasma Microinstabilities by : S. Peter Gary
Download or read book Theory of Space Plasma Microinstabilities written by S. Peter Gary and published by Cambridge University Press. This book was released on 1993-09-16 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the linear theory of waves and instabilities that propagate in a collisionless plasma.
Book Synopsis Particle Diffusion in the Radiation Belts by : M. Schulz
Download or read book Particle Diffusion in the Radiation Belts written by M. Schulz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advent of artificial earth satellites in 1957-58 opened a new dimension in the field of geophysical exploration. Discovery of the earth's radiation belts, consisting of energetic electrons and ions (chiefly protons) trapped by the geomagnetic field, followed almost immediately [1,2]' This largely unexpected development spurred a continuing interest in magnetospheric exploration, which so far has led to the launching of several hundred carefully instrumented spacecraft. Since their discovery, the radiation belts have been a subject of intensive theoretical analysis also. Over the years, a semiquantitative understanding of the governing dynamical processes has gradually evol ved. The underlying kinematical framework of radiation-belt theory is given by the adiabatic theory of charged-particle motion [3J, and the interesting dynamical phenomena are associated with the violation of one or more of the kinematical invariants of adiabatic motion. Among the most important of the operative dynamical processes are those that act in a stochastic manner upon the radiation-belt particles. Such stochastic processes lead to the diffusion of particle distributions with respect to the adiabatic invariants. The observational data indicate that some form of particle diffusion plays an essential role in virtually every aspect of the radiation belts.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Space Storms and Space Weather Hazards by : I.A. Daglis
Download or read book Space Storms and Space Weather Hazards written by I.A. Daglis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Space storms, the manifestation of bad weather in space, have a number of physical effects in the near-Earth environment: acceleration of charged particles in space, intensification of electric currents in space and on the ground, impressive aurora displays, and global magnetic disturbances on the Earth's surface. Space weather has been defined as `conditions on the Sun and in the solar wind, magnetosphere, ionosphere, and atmosphere that can influence the performance and reliability of space- and ground-based technological systems and can endanger human life'. The 19 chapters of this book, written by some of the foremost experts on the topic, present the most recent developments in space storm physics and related technological issues, such as malfunction of satellites, communication and navigation systems, and electric power distribution grids. Readership: researchers, teachers and graduate students in space physics, astronomy, geomagnetism, space technology, electric power and communication technology, and non-specialist physicists and engineers. As recommended in the United Nations Space & Atmospheric Science Education Curriculum booklet. Please find it amongst classics such as T.J.M. Boyd, J.J. Sanderson, J.K. Hargreaves and M.C. Kelly etc.
