Different conductivity-depth variations for the response of the E_y component of non-uniform electromagnetic source field propagated in low latitude and prescribed in space-frequency domain after interaction of this component with 1-dimensional 2-layered earth model were presented. The low latitude is always referred to the equatorial region. The space-frequency domain of the source field was made possible by the use of a simple Fourier Transform and Cauchy Initial Boundary Values. The prescribed surface field was deduced from the total measured surface field by the separation of the fields into internal and external parts using surface integral. The response curves obtained for the conductivity-depth variation showed that in depth geo-physical structure can be ascertained with inducing field expressed in space-frequency domain.

response curves, 2-dimensional 2- layered earth structure, equatorial latitude, space-frequency domain, low latitude region