Computational methods in geophysical electromagnetics
Maxwell's equations are a set of differential equations that describe the connection between the electric fields and fluxes and the magnetic fields and fluxes.
This monograph provides a framework for students and practitioners who are working on the solution of electromagnetic imaging in geophysics. Google BooksOriginally published: December 11, 2014Author: Eldad Haber
Mathematical technique in seismology
In the mathematical modeling of seismic waves, the Cagniard–De Hoop method is a sophisticated mathematical tool for solving a large class of wave and diffusive problems in horizontally layered media.
The method is based on the combination of a unilateral Laplace transformation with the real-valued and positive transform parameter and the slowness field representation.
It is named after Louis Cagniard and Adrianus de Hoop; Cagniard published his method in 1939, and De Hoop published an ingenious improvement on it in 1960.
Type of intelligence gathering
Geophysical MASINT is a branch of Measurement and Signature Intelligence (MASINT) that involves phenomena transmitted through the earth and manmade structures including emitted or reflected sounds, pressure waves, vibrations, and magnetic field or ionosphere disturbances.
Geophysical signal analysis is concerned with the detection and a subsequent processing of signals.
Any signal which is varying conveys valuable information.
Hence to understand the information embedded in such signals, we need to 'detect' and 'extract data' from such quantities.
Geophysical signals are of extreme importance to us as they are information bearing signals which carry data related to petroleum deposits beneath the surface and seismic data.
Analysis of geophysical signals also offers us a qualitative insight into the possibility of occurrence of a natural calamity such as earthquakes or volcanic eruptions.
