Accession Number : AD0767089

Title :   Source-to-Observer Distance Dependence of the Surface Impedance and Wave Tilt for a Line-Source Excited Two-Layer Earth.

Descriptive Note : Technical rept.,

Corporate Author : INSTITUTE FOR TELECOMMUNICATION SCIENCES BOULDER COLO

Personal Author(s) : Wait,James R. ; Spies,Kenneth P.

Report Date : 04 SEP 1973

Pagination or Media Count : 50

Abstract : The integral representations for the field components are evaluated numerically and compared with often used asymptotic formulas. It is found that the latter have a limited range of validity when the substratum is highly resistive. In general, the distance to the source cable must be allowed for in the interpretation of the observed fields. Numerical results for the relevant parameters are included. (Author)

Descriptors :   (*GEOPHYSICAL PROSPECTING, ELECTROMAGNETIC RADIATION), FIELD THEORY, INTEGRAL EQUATIONS, NUMERICAL INTEGRATION, MATHEMATICAL MODELS

Subject Categories : Geology, Geochemistry and Mineralogy
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE