Lagrangian and energy forms for retrieving the impulse response of the Earth due to random electromagnetic forcing
Files
TR Number
Date
2011-08-10
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Abstract
We distinguish between trivial and nontrivial differences in retrieving the real or imaginary parts of the Green's function. Trivial differences come from different Green's function definitions. The energy and Lagrangian forms constitute nontrivial differences. Magnetic noise sources suffice to extract the quasistatic electromagnetic-field Earth impulse response in the Lagrangian form. This is of interest for Earth subsurface imaging. A numerical example demonstrates that all source vector components are necessary to extract a single-field vector component.
Description
Keywords
Physics
Citation
Slob, Evert ; Weiss, Chester J., Aug 10, 2011. "Lagrangian and energy forms for retrieving the impulse response of the Earth due to random electromagnetic forcing," PHYSICAL REVIEW E 84(2) Part 2: 027601. DOI: 10.1103/PhysRevE.84.027601.