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MEASUREMENT OF GROUND CONDUCTIVITY
A Important Parameters
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andt angle of arrival apparent resist approximately ary reflection atmosphere calculations calibrated curve dielectric constant Direct and Reverse direct ray EARTH ON RECEIVED earth previously found electric field equations excess distance travel expressed field theory finite conductivity flection following mannert four probe method FREQUENCY RADIO WAVES ground conductivity ground current supply homogeneous earth horizontal and vertical horizontal components important parameters incident ray incident wave intrinsic Impedance ivity layer earth low angle low frequency radio magnitude and phase maximum amplitude medium meter ohms mhos/meter model earth determined model earth previously mutual resistance obtained plane wave porous cups potential probes POTENTIOMETER CIRCUIT present PRIMARY REFLECTION DELAY RECEIVED LOW FREQUENCY received wave reflected components reflection and transmission reflection coefficient respectively second boundary secondary reflection shown in Figure Stanford University strata STRATIFIED EARTH sub-layer sub-surface reflection surface theoretical two layer tion top layer top soil layer transmission coefficients values vertical component wheret