Download or read book Computation of the Main Geomagnetic Field from Spherical Harmonic Expansions written by and published by . This book was released on 1964 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computation of the Main Geomagnetic Field from Spherical Harmonic Expansions written by Joseph C. Cain and published by . This book was released on 1964 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spherical Harmonic Models of the Geomagnetic Field written by David Rex Barraclough and published by . This book was released on 1978 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tables of Integrals for the Spherical Harmonic Expansion of the Hydromagnetic Equations written by Keith L. McDonald and published by . This book was released on 1969 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Mathematical Approximation to the Geomagnetic Field written by Robert Earl Wiley and published by . This book was released on 1966 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: An attempt was made to form a mathematical model for calculating the geomagnetic field using fewer terms than presently used in spherical harmonic expansion models. The model was to be made up of pairs of magnetic monopoles. It was found that at least four pairs of monopoles would be needed to produce a satisfactory model. The initial data used for fitting the four pair of monopoles was the geomagnetic field as calculated by a spherical harmonic expansion using the Jensen and Cain coefficients. Emphasis was given to fitting the South Atlantic Anomaly. The root-mean-square error for this region was 1.3 x 10 to the -2 gauss while the overall root-mean-square error was 3.4 x 10 to the -2 gauss. Comparison of the errors of the monopole model with the errors of the Jensen and Cain coefficients indicates that the root-mean-square error for the monopole model is larger than that of the Jensen and Cain coefficients. Additionally, it was found that the monopole model calculations were only 1/3 faster than the spherical harmonic expansion instead of the desired 1/2 or more reduction in calculation time. (Author).

Download or read book A Computational Model of the Geomagnetic Field written by James V. Herod and published by . This book was released on 1966 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field line which passes through a point in space may be traced by following the direction of the gradient of the geomagnetic field potential. The program described in this report provides a computational model which will trace the field line through a point in space. The point may be specified by giving the altitude, latitude, and longitude, or the field intensity, shell, and longitude of the point. The capability for tracing a single field line, a single shell, or a sequence of shells is provided. Most of the currently published spherical harmonic expansions for the geomagnetic field may be used. (Author).

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1986 with total page 1160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Magnetic Apex Coordinates written by T. E. Van Zandt and published by . This book was released on 1972 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book MFP magnetic Field Package written by Robert E. McInerney and published by . This book was released on 1973 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report contains a description of three separate computer routines which are used to calculate various parameters utilized in the analysis of data transmitted from probes flown on research rockets and satellites. The majority of the parameters calculated are associated with magnetic field. The program contains the INVAR, FIELDG, SHELLG/FELDG routines for the calculation of magnetic field parameters. The parameters calculated by these routines are B. L, magnetic field components, geomagnetic latitude and longitude, magnetic dip latitude, invariant latitude, magnetic inclination and declination, conjugate points, geomagnetic local time, sun/shadow indicator, and geopotential altitude.

Download or read book Potential Theory in Gravity and Magnetic Applications written by Richard J. Blakely and published by Cambridge University Press. This book was released on 1996-09-13 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text bridges the gap between the classic texts on potential theory and modern books on applied geophysics. It opens with an introduction to potential theory, emphasising those aspects particularly important to earth scientists, such as Laplace's equation, Newtonian potential, magnetic and electrostatic fields, and conduction of heat. The theory is then applied to the interpretation of gravity and magnetic anomalies, drawing on examples from modern geophysical literature. Topics explored include regional and global fields, forward modeling, inverse methods, depth-to-source estimation, ideal bodies, analytical continuation, and spectral analysis. The book includes numerous exercises and a variety of computer subroutines written in FORTRAN. Graduate students and researchers in geophysics will find this book essential.

Download or read book Spherical Harmonic Representation of the Main Geomagnetic Field for World Charting and Investigations of Some Fundamental Problems of Physics and Geophysics written by United States. National Technical Information Service and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spherical Harmonic Representation of the Main Geomagnetic Field for World Charting written by University of Liverpool and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computation of Spherical Harmonics and Approximation by Spherical Harmonic Expansions written by W. Freeden and published by . This book was released on 1985 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Note written by and published by . This book was released on 1973 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Spherical Harmonic Analysis of the Main Earth s Magnetic Field from 1883 to 1899 written by Zan-Shing Hsu and published by . This book was released on 1976 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Analysis of the Earth s Magnetic Field from 1835 to 1965 written by Keith L. McDonald and published by . This book was released on 1967 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Foundations of Geomagnetism written by George Backus and published by Cambridge University Press. This book was released on 1996-02-23 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main magnetic field of the Earth is a complex phenomenon. To understand its origins in the fluid of the Earth's core, and how it changes in time requires a variety of mathematical and physical tools. This book presents the foundations of geomagnetism, in detail and developed from first principles. The book is based on George Backus' courses for graduate students at the University of California, San Diego. The material is mathematically rigorous, but is logically developed and has consistent notation, making it accessible to a broad range of readers. The book starts with an overview of the phenomena of interest in geomagnetism, and then goes on to deal with the phenomena in detail, building the necessary techniques in a thorough and consistent manner. Students and researchers will find this book to be an invaluable resource in the appreciation of the mathematical and physical foundations of geomagnetism.