State Water Resources Research Institute Program

Project ID: 2011NJ278B
Title: Advancing the characterization of sandstone and fractured limestone aquifers using surface electrical geophysical methods: application to water resources evaluation at two sites in New Jersey
Project Type: Research
Start Date: 3/01/2011
End Date: 2/29/2012
Congressional District: NJ-010
Focus Categories: Methods, Hydrology, Water Quantity
Principal Investigators: Elwaseif, Mehrez (Rutgers Newark); Slater, Lee (Rutgers University)
Federal Funds: $ 5,000
Non-Federal Matching Funds: $ 9,893
Abstract: This project aims to advance surface Ground Penetrating Radar (GPR) and Electrical Resistivity (ER) processing techniques for the characterization of subsurface aquifers at two sites in New Jersey, where the problem is to characterize sandstone and fractured limestone aquifers. Previous GPR studies show a strong relationship between GPR signal parameters and Volumetric Water Content (VWC). I propose to apply a time-frequency analysis technique called 'S-Transform' to surface GPR data sets, coupled with empirical relationship to better predict the VWC. Synthetic studies to estimate VWC in a sandstone aquifer show promising results. In addition, I propose to invert the hydrogephysical resistivity data using the level-set method, rather than the widely used smoothness constraint inversion. The program of research includes both laboratory and field studies. The main outcomes of this project will be [1] developing reliable GPR and resistivity processing strategies for predicting the VWC and for improving the resolution of the hydrogeophysical resistivity images, [2] The proposed approach for estimating the VWC from GPR data sets will be specifically appropriate at any field sites in New Jersey characterized either by sandstone or fractured limestone aquifers, and [3] Improving the effectiveness of surface electrical geophysical methods, rather than using cross-borehole geophysics, in the hydrogeologic characterization of sandstone and fractured limestone aquifers.

Progress/Completion Report, 2011, PDF

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