Electromagnetic Soundings book cover

Electromagnetic Soundings

Providing the latest developments in the application of electromagnetic methods, this title is a revised edition of the book "Frequency and Transient Soundings" by A.A. Kaufman and G.V. Keller published in 1983.

In this volume the physical principles, theory and interpretation of electromagnetic soundings and profiling are developed and explained. The authors systematically derive the relationships between components of electromagnetic fields measured, transmitter-receiver separations and frequency spectrum on the one hand, and parameters of geoelectric sections on the other hand.

In addition you will find case histories illustrating the applications of modern instruments for electromagnetic soundings and profiling in agricultural and geotechnical engineering, environmental site assessments and ground water investigations.

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Published: March 2001

Imprint: Elsevier

ISBN: 978-0-444-50094-6

Contents

  • Chapter 1. Frequency-Domain Behavior of the Electromagnetic Field Generated by a Magnetic Dipole.Frequency-domain electromagnetic field of a magnetic dipole in a uniform conducting and polarizable full-space. The relationship between amplitude and phase. The electromagnetic field of a vertical magnetic dipole source on the surface of a uniform conducting half-space. The electromagnetic field generated by a vertical magnetic dipole source over a conducting half-space with a thin conducting plane. Expressions for the electromagnetic field of a vertical magnetic dipole on the surface of a horizontally layered medium. Asymptotic behavior of the quadrature component of the magnetic field and the in-phase component of the electric field at low induction numbers. Asymptotic behavior of the electromagnetic field at low frequencies. The electromagnetic field for large induction numbers. Principles of frequency sounding. A horizontal magnetic dipole on the surface of a layered medium.Chapter 2. Frequency-Domain Behavior of the Electromagnetic Field Generated by an Electric Dipole. The electromagnetic field of an electric dipole in a uniform conducting medium. The harmonic field of a horizontal electric dipole on the surface of a uniform half-space. Electromagnetic field of an electric dipole on a stratified earth. Electromagnetic field of an electric dipole on the surface of a medium containing a thin resistant layer.Chapter 3. Transient Fields on the Surface of a Horizontally Layered Medium. Transient field of a magnetic dipole in a uniform whole-space. Transient field of a vertical magnetic dipole on the surface of a uniform half-space. Transient field of a vertical magnetic dipole for a geoelectric section with a thin conducting sheet. Early stage of transient coupling of a vertical magnetic dipole source on the surface of a horizontally stratified medium. Late stage behavior due to a vertical magnetic dipole source on a horizontally stratified medium. Transient field from an electric dipole on the surface of a conducting medium. Calculating transient fields on the surface of a horizontally layered medium. The effect of finite dimensions of field sources and receivers.Chapter 4. Interpretation of Transient Soundings. Definition of apparent resistivity. Apparent resistivity curves for a uniform half-space. Apparent resistivity curves for a two-layer sequence and interpretation. Interpretation of H-Type apparent resistivity curves. Interpretation of A-Type apparent resistivity curves. Interpretation of K-Type apparent resistivity curves. Interpretation of Q-Type apparent resistivity curves.Chapter 5. Applications of Electromagnetic Profiling and Transient Soundings. Electromagnetic profiling. Case Histories. Transient Soundings. Case Histories.

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