Author: Da-Yue ZhangPublisher:
ISBN:
Category : Electric fields
Languages : en
Pages : 276
Book Description
An Electrodynamics and Fluid Dynamics Study of the High Latitude Ionosphere
Author: Da-Yue ZhangPublisher:
ISBN:
Category : Electric fields
Languages : en
Pages : 276
Book Description
The Earth's Ionosphere
Author: Michael KellyPublisher: Elsevier
ISBN: 0323148050
Category : Science
Languages : en
Pages : 500
Book Description
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.
Magnetospheric and High-latitude Ionospheric Electrodynamics
Author: William J. BurkePublisher:
ISBN:
Category : Atmospheric models
Languages : en
Pages : 84
Book Description
This report provides an introductory overview of electrodynamic interactions between the magnetosphere and ionosphere. In the first half of the paper, the viscous interaction and magnetic merging models for driving convection are described. The notion of adiabatic heating as a natural consequence of convection is introduced, in conjunction with a quasi-empirical model for the magnetospheric potential. The second half of the paper concerns observations of electrodynamic quantities taken in the topside ionosphere in the polar cap and auroral oval.
Space Physics and Aeronomy, Ionosphere Dynamics and Applications
Author: Chao HuangPublisher: John Wiley & Sons
ISBN: 1119507553
Category : Science
Languages : en
Pages : 47
Book Description
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
An Investigation of High-latitude Ionosphere-thermosphere Dynamics and Electrodynamics
Author: Fang LiElectrodynamics of the High Latitude Ionosphere
Author: R. A. HeelisPublisher:
ISBN:
Category :
Languages : en
Pages : 33
Book Description
Both large and small scale structure in the plasma density and velocity are important phenomena to be understood in the ionosphere. The ability to characterize the high-latitude plasma motion over large spatial scales is demonstrated here with the development of a model that can be driven by data inputs. The model can also be used to study the mechanisms producing large scale structures in the plasma. The applicability of the model is demonstrated for periods when the interplanetary magnetic field has a southward component. During periods of northward IMF the electrodynamics of the ionosphere on spatial scales of 100 km must be understood. Here the combination of ground based and space based data are invaluable tools. We show that mesoscale features may be coherent over many hours and constitute an important signature of the interaction of the Earth's magnetic field with the interplanetary medium. Keywords: Ionosphere; Plasma; Electric fields. (jhd).
The Earth's Ionosphere
Author: Michael C. KelleyPublisher: Academic Press
ISBN: 0080916570
Category : Science
Languages : en
Pages : 593
Book Description
Although interesting in its own right, due to the ever-increasing use of satellites for communication and navigation, weather in the ionosphere is of great concern. Every such system uses trans-ionospheric propagation of radio waves, waves which must traverse the commonly turbulent ionosphere. Understanding this turbulence and predicting it are one of the major goals of the National Space Weather program. Acquiring such a prediction capability will rest on understanding the very topics of this book, the plasma physics and electrodynamics of the system. Fully updated to reflect advances in the field in the 20 years since the first edition published Explores the buffeting of the ionosphere from above by the sun and from below by the lower atmosphere Unique text appropriate both as a reference and for coursework
Magnetospheric and High-latitude Ionospheric Electrodynamics
Author: William J. BurkePublisher:
ISBN:
Category : Atmospheric models
Languages : en
Pages : 80
Book Description
This report provides an introductory overview of electrodynamic interactions between the magnetosphere and ionosphere. In the first half of the paper, the viscous interaction and magnetic merging models for driving convection are described. The notion of adiabatic heating as a natural consequence of convection is introduced, in conjunction with a quasi-empirical model for the magnetospheric potential. The second half of the paper concerns observations of electrodynamic quantities taken in the topside ionosphere in the polar cap and auroral oval.
Modeling the Ionosphere-Thermosphere
Author: J. D. HubaPublisher: John Wiley & Sons
ISBN: 1118704452
Category : Science
Languages : en
Pages : 735
Book Description
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 201. Modeling the Ionosphere-Thermosphere System brings together for the first time a detailed description of the physics of the IT system in conjunction with numerical techniques to solve the complex system of equations that describe the system, as well as issues of current interest. Volume highlights include discussions of: Physics of the ionosphere and thermosphere IT system, and the numerical methods to solve the basic equations of the IT system The physics and numerical methods to determine the global electrodynamics of the IT system The response of the IT system to forcings from below (i.e., the lower atmosphere) and from above (i.e., the magnetosphere) The physics and numerical methods to model ionospheric irregularities Data assimilation techniques, comparison of model results to data, climate variability studies, and applications to space weather Providing a clear description of the physics of this system in several tutorial-like articles, Modeling the Ionosphere-Thermosphere System is of value to the upper atmosphere science community in general. Chapters describing details of the numerical methods used to solve the equations that describe the IT system make the volume useful to both active researchers in the field and students.
A Study of the Dayside High-latitude Ionospheric Electrodynamics During Extended Solar Minimum
Author: Janelle V. JennigesPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The high-latitude electric eld fall-o region connects convection in the polar cap to the region where ring currents modify the penetration electric field equatorward of the polar cap boundary. This region is often overlooked because it falls between the limits of low latitude and high-latitude ionospheric models. However, penetrating electric fields cause large changes in ion composition; and therefore, correctly modeling the electric fields and plasma drift in this region aids in correctly specifying the ionosphere. Many ionospheric models use the Kp index as a physical driver, and so the latitude dependence of the plasma drift in the fall-o region was investigated as a function of Kp using Defense Meteorological Satellite Program ion drift data from the 2007{2010 solar minimum. Both the dusk and dawn sectors were analyzed and t to analytical functions describing the fall-o with decreasing latitude. The latitude dependencies were found to dier in the dusk and dawn sectors with a factor of two increase in the expansion of the duskside polar cap radius and auroral region over the dawnside. Additionally, the low-Kp polar cap radius was found to be five degrees smaller than the radius currently used in simple ionospheric models.