Résumé
In this paper, we discuss about hydrogeological parameters that can be measured with the magnetic resonance sounding method (MRS). This non-invasive surface geophysical method is directly sensitive to groundwater and meets a growing interest in the scientific and engineering communities of the earth sciences. It has been used for years now, both for water resources prospecting all around the world and to obtain additional information to the classical method for improving aquifer management. The main results to be obtained from the method and its limits are presented and illustrated from numerical models and case histories.