Equivalent Sources Used As An Analytic Base For Processing Total Magnetic Field Profiles

Abstract

Abstract Equivalent sources are useful in processing total magnetic field profiles. A lines-of-dipoles distribution, obtained by solving the linear inverse problem, provides an analytic base for computing the following quantities from an observed field: first and second vertical derivative fields, upward- and downward-continued fields, field reduced to the pole, amplitude spectrum of the field, and band-passed field. A theoretical example demonstrates the validity of the approach, and a field example shows that reasonable results are readily obtained.