Equatorial Electrojet
Title | Equatorial Electrojet PDF eBook |
Author | CAgodi Onwumechikli |
Publisher | Routledge |
Pages | 658 |
Release | 2019-03-04 |
Genre | Science |
ISBN | 1351449923 |
This is the first book to review all the fields of equatorial electrojet phenomena and their relevant theories in one volume. In certain relevant sections, the book discusses both the equatorial electrojet and the world-wide parts of the Sq current systems. Onwumwchili is an internationally known and highly respected expert in the equatorial electrojet field- a brand of geomagnetism.
On the Equatorial Electrojet
Title | On the Equatorial Electrojet PDF eBook |
Author | George J. Gassmann |
Publisher | |
Pages | 16 |
Release | 1966 |
Genre | Equatorial electrojet |
ISBN |
Numerical Model of the Equatorial Electrojet
Title | Numerical Model of the Equatorial Electrojet PDF eBook |
Author | Arthur D. Richmond |
Publisher | |
Pages | 72 |
Release | 1972 |
Genre | Equations of motion |
ISBN |
A computer program which calculates electron and ion densities, ionospheric conductivities, electric fields and currents, and magnetic variations in regions near the magnetic equator is described in detail. It is also explained how this numerical model can be used to deduce F-region vertical plasma drifts in the equatorial ionosphere from observed magnetic variations at ground level. (Author).
Equatorial Electrojet
Title | Equatorial Electrojet PDF eBook |
Author | CAgodi Onwumechikli |
Publisher | Routledge |
Pages | 650 |
Release | 2019-03-04 |
Genre | Science |
ISBN | 1351449931 |
This is the first book to review all the fields of equatorial electrojet phenomena and their relevant theories in one volume. In certain relevant sections, the book discusses both the equatorial electrojet and the world-wide parts of the Sq current systems. Onwumwchili is an internationally known and highly respected expert in the equatorial electrojet field- a brand of geomagnetism.
Overview of the Equatorial Electrojet and Related Ionospheric Current Systems
Title | Overview of the Equatorial Electrojet and Related Ionospheric Current Systems PDF eBook |
Author | |
Publisher | |
Pages | 75 |
Release | 2005 |
Genre | |
ISBN |
The equatorial electrojet (EEJ) is an intense electric current that flows in the ionosphere in a narrow zone above the magnetic dip equator during the daytime. The electrojet current produces a large enhancement of the surface component of the geomagnetic field at and in the vicinity of the dip equator. The EEJ is most intense around local noontime and appears to be more stable than other ionospheric current systems. This report presents a brief overview of the characteristics of the EEJ, including its location, electron density profile, current distribution, and magnetic field. In addition, the diurnal and seasonal variations of the EEJ are discussed. The relationship of the EEJ to the worldwide dynamo current system is discussed, in addition to a comparison with the aurora electrojet (AEJ). A derivation of the EEJ current distribution is presented that is based on an anisotropic conductivity model of the ionosphere. A summary of several experiments involving the generation of low4requency signals from a heated and modulated EEJ is also given. It is anticipated that this report will provide helpful background information to scientists and engineers engaged in the development of future experiments that involve the transmission of signals in the ELF and VLF frequency bands from a heated and modulated EEJ.
The Magnetotelluric Method
Title | The Magnetotelluric Method PDF eBook |
Author | Alan D. Chave |
Publisher | Cambridge University Press |
Pages | 571 |
Release | 2012-04-26 |
Genre | Science |
ISBN | 1107376971 |
The magnetotelluric method is a technique for imaging the electrical conductivity and structure of the Earth, from the near surface down to the 410 km transition zone and beyond. This book forms the first comprehensive overview of magnetotellurics, from the salient physics and its mathematical representation to practical implementation in the field, data processing, modeling and geological interpretation. Electromagnetic induction in 1-D, 2-D and 3-D media is explored, building from first principles, and with thorough coverage of the practical techniques of time series processing, distortion, numerical modeling and inversion. The fundamental principles are illustrated with a series of case histories describing geological applications. Technical issues, instrumentation and field practices are described for both land and marine surveys. This book provides a rigorous introduction to magnetotellurics for academic researchers and advanced students, and will be of interest to industrial practitioners and geoscientists wanting to incorporate rock conductivity into their interpretations.
Ionospheric Multi-Spacecraft Analysis Tools
Title | Ionospheric Multi-Spacecraft Analysis Tools PDF eBook |
Author | Malcolm Wray Dunlop |
Publisher | Springer Nature |
Pages | 296 |
Release | 2019-10-29 |
Genre | Science |
ISBN | 3030267326 |
This open access book provides a comprehensive toolbox of analysis techniques for ionospheric multi-satellite missions. The immediate need for this volume was motivated by the ongoing ESA Swarm satellite mission, but the tools that are described are general and can be used for any future ionospheric multi-satellite mission with comparable instrumentation. In addition to researching the immediate plasma environment and its coupling to other regions, such a mission aims to study the Earth’s main magnetic field and its anomalies caused by core, mantle, or crustal sources. The parameters for carrying out this kind of work are examined in these chapters. Besides currents, electric fields, and plasma convection, these parameters include ionospheric conductance, Joule heating, neutral gas densities, and neutral winds.