Download or read book The Polar Ionosphere and Magnetospheric Processes written by Gunnar Skovli and published by . This book was released on 1970 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The High Latitude Ionosphere and its Effects on Radio Propagation written by R. D. Hunsucker and published by Cambridge University Press. This book was released on 2007-09-10 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: A modern treatment of the physics and phenomena of the ionosphere, beginning with the basics of radio propagation and the use of radio techniques in ionospheric studies. Ample cross-referencing, chapter summaries and reference lists make this book an invaluable aid for graduate students, ionospheric physicists and radio engineers.
Download or read book An Empirical Model of the Polar Ionosphere written by Terence James Elkins and published by . This book was released on 1973 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four separate articles are collected which deal with the construction of empirical models of the polar ionosphere. The particular emphasis in these articles is towards the radio propagation application of the models. Numerical models of the vertical electron density profiles on the topside and bottomside of the F-region are developed, and a model for sporadic-E is included. Special attention is devoted to features which are characteristic of the polar ionosphere-auroral effects, the trough, and magnetospheric cleft regions. The models are constructed specifically for convenience in computer programming, and in fact, all aspects of the models contained in this report are available in the form of Fortran computer programs. (Author).
Download or read book Arctic Ionosphere and Aurora written by J. Buchau and published by . This book was released on 1970 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to Air Force needs for specifying and forecasting conditions of the Arctic ionosphere, AFCRL's Airborne Ionospheric Laboratory, a highly instrumented NKC 135 jet aircraft, was used in an extensive Arctic research program that started in 1967. To date, 69 flights were made and ionospheric and optical data covering major parts of the auroral oval, mainly the midday sector and the night sector, were collected. During the winter months of 1967, 1968, 1969, and 1970 special emphasis was put on the investigation of the day sector. These flights covered a rather unique and poorly investigated area of the auroral oval, and a detailed report on the observations is given here. A thorough analysis of the data collected in the day sector reveals the existence of a band of continuous particle precipitation south of the location of the discrete aurora. This precipitation hardens towards the south and results in E- and D-region ionization. These observations compare very well with measurements of precipitating particles done by satellite. The investigation of the evening and night sectors showed similar but less organized trends than on the day side. During several flights the continuity of the auroral oval was verified. The investigation indicates that, with additional measurements, it may be possible to develop a model of the Arctic ionosphere. With control measurements from a few ideally located ground stations, the dynamics of the Arctic ionosphere might then be utilized for forecasting propagation conditions in the Arctic. (Author).
Download or read book Resonances in the Earth Ionosphere Cavity written by A.P. Nickolaenko and published by Springer Science & Business Media. This book was released on 2002-07-31 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book on electromagnetic resonance phenomena describes a general approach to physical problems, ways to solve them, and properties of the solutions obtained. Attention is given to the discussion and interpretation of formal and experimental data and their links to global atmospheric conditions such as the dynamics of global thunderstorm activity, variations of the effective height of the lower ionosphere, etc. Schumann resonance is related to worldwide thunderstorm activity, and simultaneously, to global properties of the lower ionosphere. Transverse resonance is predominantly a local phenomenon containing information on the local height and conductivity of the lower ionosphere and on nearby thunderstorm activity. Transient events in ELF-VLF radio propagation are also treated. These are natural pulsed radio signals and/or abrupt changes of manmade VLF radio signals. The transients associated with cloud-to-ionosphere discharges (red sprites, blue jets, trolls) are discussed, and clarification of the underlying physical ideas and their practical applications to pioneer results achieved in the field recently are emphasised.
Download or read book Magnetosphere Ionosphere Coupling in the Solar System written by Charles R. Chappell and published by John Wiley & Sons. This book was released on 2016-10-31 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over a half century of exploration of the Earth’s space environment, it has become evident that the interaction between the ionosphere and the magnetosphere plays a dominant role in the evolution and dynamics of magnetospheric plasmas and fields. Interestingly, it was recently discovered that this same interaction is of fundamental importance at other planets and moons throughout the solar system. Based on papers presented at an interdisciplinary AGU Chapman Conference at Yosemite National Park in February 2014, this volume provides an intellectual and visual journey through our exploration and discovery of the paradigm-changing role that the ionosphere plays in determining the filling and dynamics of Earth and planetary environments. The 2014 Chapman conference marks the 40th anniversary of the initial magnetosphere-ionosphere coupling conference at Yosemite in 1974, and thus gives a four decade perspective of the progress of space science research in understanding these fundamental coupling processes. Digital video links to an online archive containing both the 1974 and 2014 meetings are presented throughout this volume for use as an historical resource by the international heliophysics and planetary science communities. Topics covered in this volume include: Ionosphere as a source of magnetospheric plasma Effects of the low energy ionospheric plasma on the stability and creation of the more energetic plasmas The unified global modeling of the ionosphere and magnetosphere at the Earth and other planets New knowledge of these coupled interactions for heliophysicists and planetary scientists, with a cross-disciplinary approach involving advanced measurement and modeling techniques Magnetosphere-Ionosphere Coupling in the Solar System is a valuable resource for researchers in the fields of space and planetary science, atmospheric science, space physics, astronomy, and geophysics. Read an interview with the editors to find out more: https://eos.org/editors-vox/filling-earths-space-environment-from-the-sun-or-the-earth
Download or read book Measurements of Trans ionospheric Propagation Parameters in the Polar Cap Ionosphere written by John A. Klobuchar and published by . This book was released on 1987 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of absolute TEC (Total Electron Content), were made for the first time from the polar cap station located at Thule, Greenland in early 1984 using dual-frequency group delay measurements from high orbit satellites. Measurements of L-band amplitude scintillation and dual-frequency differential carrier phase scintillation were also made. The variability of the TEC was extremely large, with increases above the background values of more than 100 percent observed frequently. Quasi-periodic TEC enhancements with periods as short as 10 min and with amplitudes exceeding 10**17 el/m**2 column were seen over several time intervals of more than two hours. The absolute values of TEC observed in the dark polar cap ionosphere at times exceeded the diurnal maximum values from the mid-latitude ionosphere during this initial period of observations.
Download or read book Physics of the Upper Polar Atmosphere written by Asgeir Brekke and published by Springer Science & Business Media. This book was released on 2012-12-31 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the only extended textbook that covers in particular the physics of the upper polar atmosphere where the polar lights demonstrates the end product of a process taking place at extremely high latitudes between the solar wind and the upper polar atmosphere. A textboook that meets the modern requriement for reading in order to obtain a master of science or a Dr. of science degree in upper polar atmosphere physics or the interaction between the soalr wind and the Earth's atmosphere
Download or read book The Earth s Ionosphere written by Michael Kelly and published by Elsevier. This book was released on 2012-12-02 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Earth's Ionosphere: Plasma Physics and Electrodynamics emphasizes the study of plasma physics and electrodynamics of the ionosphere, including many aeronomical influences. The ionosphere is somewhat of a battleground between the earth's neutral atmosphere and the sun's fully ionized atmosphere, in which the earth is embedded. One of the challenges of ionosphere research is to know enough about these two vast fields of research to make sense out of ionospheric phenomena. This book provides insights into how these competing sources of mass, momentum, and energy compete for control of the ionosphere. Some of the topics discussed include the fundamentals of ionospheric plasma dynamics; equatorial plasma instabilities; high-latitude electrodynamics; and instabilities and structure in the high-latitude ionosphere. Throughout this text only the region above 90 km are discussed, ignoring the D region entirely. This publication is a good source of information for students and individuals conducting research on earth’s ionosphere.
Download or read book POLAR Exploring Earthspace in the Realms of the Auroras written by and published by . This book was released on 1993 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Physics and Aeronomy Ionosphere Dynamics and Applications written by Chao Huang and published by John Wiley & Sons. This book was released on 2021-05-11 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of global ionospheric research from the polar caps to equatorial regions It's more than a century since scientists first identified the ionosphere, the layer of the Earth’s upper atmosphere that is ionized by solar and cosmic radiation. Our understanding of this dynamic part of the near-Earth space environment has greatly advanced in recent years thanks to new observational technologies, improved numerical models, and powerful computing capabilities. Ionosphere Dynamics and Applications provides a comprehensive overview of historic developments, recent advances, and future directions in ionospheric research. Volume highlights include: Behavior of the ionosphere in different regions from the poles to the equator Distinct characteristics of the high-, mid-, and low-latitude ionosphere Observational results from ground- and space-based instruments Ionospheric impacts on radio signals and satellite operations How earthquakes and tsunamis on Earth cause disturbances in the ionosphere 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 An Ionospheric Model for the Arctic written by George J. Gassmann and published by . This book was released on 1970 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A first order approximation model of the Arctic ionosphere is described, based on published observations and concepts. The model allows for modifications and additions whenever new information becomes available, and will eventually represent a true picture available in real time or even as forecast. The location of the phenomena is specified in corrected geomagnetic latitude and local time. Various input parameters are included whenever some of their influences are known, such as UT, seasons, sunspot number, magnetic variations. The Arctic ionospheric features are specified as 'quasi-instant' deviations from routine predictions whereby the devitations represent probabilities of occurrence during periods that may range from 20 min to 3 hr. The following ionospheric features are more or less covered: auroral E (or night-E), auroral Es (or Esr), HF absorption, Arctic F. Necessary improvements to the model are indicated, including the inclusion of storm-time of individual substorms and the requirement that routine observations be maintained in the midnight sector of the auroral oval. (Author).
Download or read book An Introduction to Ionosphere and Magnetosphere written by John Ashworth Ratcliffe and published by CUP Archive. This book was released on 1972-06-29 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Winter Polar Ionosphere written by Communications Research Centre (Canada) and published by . This book was released on 1978 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Physics and Aeronomy Upper Atmosphere Dynamics and Energetics written by Wenbin Wang and published by John Wiley & Sons. This book was released on 2021-05-04 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of the structure and variability of the upper atmosphere Earth's upper atmosphere is an open system that is strongly influenced by energy and momentum inputs from both above and below. New observation and modeing techniques have provided insights into dynamics, energetics, and chemical processes in the upper atmosphere. Upper Atmosphere Dynamics and Energetics presents an overview of key research advances in upper atmospheric physics, and measurement and modeling techniques, along with remaining challenges for understanding the state and variability of the upper atmospheric system. Volume highlights include: Insights into the interconnections between different areas of upper atmospheric science Appreciation of the dynamics and complexity of the global upper atmospheric system Techniques for observing and measuring the upper atmosphere Responses of the upper atmosphere to external drivers 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 VLF LF Reflectivity of the Polar Ionosphere 19 January 2 March 1975 written by John E. Rasmussen and published by . This book was released on 1976 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides a summary of high latitude ionospheric reflectivity as observed by the USAF's high resolution VLF/LF ionosounder operating in northern Greenland. Ionospheric reflectivity parameters, including reflection heights and coefficients, are presented as a function of time of day. VLF long path propagation measurements, along with magnetometer and riometer data, are presented as supplementary information. (Author).
Download or read book Ion Acceleration in the Magnetosphere and Ionosphere written by Tom Chang and published by American Geophysical Union. This book was released on 1986 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers and discussions presented at the Chapman Conference on Ion Acceleration in the Magnetosphere, Wellesley, Mass., 6/3-7/1985. Sponsored by the AGU and others.
