One of the main objectives of geophysics is to find how density ρ and other physical characteristics depend on a 3-D location (x, y, z). In general, in numerical methods, a way to find the dependence ρ(x, y, z) is to discretize the space, and to consider, as unknown, e.g., values ρ(x, y, z) on a 3-D rectangular grid. In this case, the desired density distribution is represented as a combination...

potential field methods such as gravity and magnetic methods are among the most applied geophysical methods in mineral exploration. a high-resolution technique is developed to image geologic boundaries such as contacts and faults. potential field derivatives are the basis of many interpretation techniques. in boundary detection, the analytic signal quantity is defined by combining the val...

Recent developments in geophysical data analysis suggest that in addition to a multi-method approach, “data fusion” techniques can offer meaningful insights into archaeological features, as well as allow for researchers to establish patterns between multivariate data sets that might otherwise go unnoticed. Extensive and intensive geophysical prospection has been employed at the site of Portus i...

Joint inversion of different geophysical data sets has recently received considerable attention. Different geophysical methods are sensitive to different physical properties and their variations on different scales, and joint inversion provides a way to combine these complementary information contained in each data set by integrating all the geophysical data into a single inversion scheme. The ...

2. If the current carrying rod is sufficiently large (a few millimeters in our installation), it is only partly evaporated by a discharge, and the factors influencing performance can be quantitatively studied. In particular, the amount of material melted and evaporated, and the temperatures reached by the current-carrying sheath, called the M-M (metal-megagauss) interface, can be investigated.

The physical description in itself can be based on the kind of coupling being involved (i.e., thermal, gravitational, electromagnetic, or by matter exchange). Gravitational coupling is related to celestial mechanics and tidal deformation. Thermal coupling is ultimately concerned with energy balance. Matter exchange is concerned with the interaction between contiguous systems, and particularly i...