P057 Z-99 FORWARD AND INVERSE MODELING OF MRS RELAXATION SIGNALS USING MULTI-EXPONENTIAL DECOMPOSITION 1 Near Surface 2005 — Palermo Italy 4 - 7 September 2005 O. MOHNKE AND U. YARAMANCI Technical University Berlin Dept. of Applied Geophysics Ackerstr. 71-76 13355 Berlin Germany E-mail: [email protected] Introduction Magnetic Resonance Sounding (MRS) or Surface nuclear magnetic resonance (SNMR) is a non-invasive groundwater-exploration method that allows a direct determination of the water content and the estimation of permeability from the relaxation signal of excited hydrogen nuclei [1 2]. Whereas the signal amplitudes of MRS are proportional to the amount of water in the subsurface


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