The geophysical field method of Surface Nuclear Magnetic Resonance (SNMR) or Magnetic Resonance Sounding (MRS) allows to non-invasively determine the mobile water content (amplitudes) in the subsurface. Analogous to well-logging and laboratory applications the SNMR signal also contains information linked to pore sizes (decay times) and electrical conductivity (phases) in the ground. Therefore, SNMR can basically also provide estimates of storage and traort properties, i.e. the pore size distribution or the hydraulic conductivity. The Larmor precession frequency of hydrogen nuclei flowed in the loop. Firstly, the analytical equations for the magnetic field of the loop for direct use in advanced modeling validated. In fact the effect of electrical conductivity on the signal amplitude of the signal is so important. Effect of aquifer depth, thickness, water content, impermeable half-space, the intensity of magnetization and resistivity overburden is studied. When the saturated layer is deep, the signal amplitude decreases and with increasing size of the loop, the signal amplitude is increased.
