The field of the vertical electric dipole immersed in the heterogeneous half-space

The field of the vertical electric dipole (VED) immersed in the heterogeneous conductive halfspace (sea) is analyzed in time domain. In the near field of the source, the amplitudes of the electric and magnetic components of the field are proportional to power 3/2 and power 5/2 of the conductivity of the medium, respectively. After termination of the transmitter pulse, all the VED components decay with time as ～1/t ^5/2. The possibility of applying the VED field for estimating the electrical properties of the offshore geological sections is demonstrated.