Volume no :11, Issue no: 1, September (2011)

MATHEMATICAL MODEL OF ELECTROMAGNETIC RESPONSE DUE TO A HORIZONTAL LOOP SOURCE OVER A LAYERED EARTH CONTAINING AN INHOMOGENEOUS LAYER HAVING LINEARLY VARYING CONDUCTIVITY WITH DEPTH

Author's: P. PAWONG, J. RUAMMEK, N. CHUMCHOB and S. YOOYUANYONG
Pages: [31] - [56]
Received Date: September 4, 2011
Submitted by:

Abstract

A new mathematical solution for the problem of computation EM response over a layered earth containing an inhomogeneous layer having linearly varying conductivity with depth as is derived analytically. The Hankel transform technique is employed for solving the governing equations. Tangential electric field in each area is then expressed in the analytical forms of inverse Hankel transform. Numerical experiments are presented graphically and are compared with the published results in the literature. Response curves clearly indicate that the inhomogeneous layer significantly affects the EM response at the ground surface.

Keywords

electromagnetic response, a horizontal loop source, linearly varying conductivity, Hankel transforms.