Geophysics provides a multidimensional suite of investigative methods that are transforming
our ability to see into the very fabric of the subsurface environment, and monitor the …

We have seen that the greatest limitation of the resistivity sounding method is that it does not
take into account horizontal changes in the subsurface resistivity. A more accurate model of …

The magnetic method, perhaps the oldest of geophysical exploration techniques, blossomed
after the advent of airborne surveys in World War II. With improvements in instrumentation …

The gravity method was the first geophysical technique to be used in oil and gas exploration.
Despite being eclipsed by seismology, it has continued to be an important and sometimes …

Two automatic ways of estimating the regularization parameter in underdetermined,
minimum-structure-type solutions to non-linear inverse problems are compared: the …

Throughout this book there are numerous cases where geophysics has been used to help
solve practical environmental, geotechnical, and exploration problems. The typical scenario …

Geophysical inversion methods are used as part of an interpretation process that seeks to
differentiate geologic units. To improve the reliability of geologic differentiation based on …

For 3-D inversion of controlled-source electromagnetic (CSEM) data, increasing availability
of high-performance computers enables us to apply inversion techniques that are …

I have developed an inversion approach that determines a 3D susceptibility distribution that
produces a given magnetic anomaly. The subsurface model consists of a 3D, equally …

Three-dimensional (3-D) gravity inversion obtains the density distribution of subsurface
geological bodies through observed gravity anomalies. Recently, data-driven methods …