Journal of the Nigerian Association of Mathematical Physics

Log in or Register to get access to full text downloads.

Remember me or Register

DOWNLOAD FULL TEXT Open Access  DOWNLOAD FULL TEXT Subscription or Fee Access

The Radio And Very Low Frequency (VLF) Electromagnetic Response Of A Layered Earth Media With Variable Dielectric Permittivity

VC Ozebo, JA Olowofela


A set of electromagnetic sounding models was formulated using earth parameters such as conductivity, dielectric permittivity, permeability,  surface wave impedance; adopting the Maxwell’s equation as the basis and assuming the earth to be a layered media. The amplitude of the modification factor to the wave tilt, Q, the phase of Q and the reflection coefficient, are the computed response parameters studied over a stratified earth media with variable dielectric permittivity. A radio frequency of 125 KHz and a very low frequency (VLF) of 20 KHz were used in the computations and the field parameters studied over a dimensionless induction number, B. The application of the radio frequency over a two-layer media with conductive basement, revealed that the dielectric permittivity has greater influence on the response parameters, compared with the case when a very low frequency (VLF) was used. However, a remarkable influence was observed with both frequencies over a resistive basement.

Keyword: wave tilt, dielectric permittivity, contaminant, layered earth

AJOL African Journals Online