New pseudo-3D GPR data method for hydraulic conductivity estimation over an unconfined aquifer

Erwan Gloaguen; Michel Chouteau; Denis Marcotte

doi:10.1117/12.462257

12 April 2002 New pseudo-3D GPR data method for hydraulic conductivity estimation over an unconfined aquifer

Erwan Gloaguen, Michel Chouteau, Denis Marcotte

Proceedings Volume 4758, Ninth International Conference on Ground Penetrating Radar; (2002) https://doi.org/10.1117/12.462257
Event: Ninth International Conference on Ground Penetrating Radar (GPR2002), 2002, Santa Barbara, CA, United States

Abstract

Densely sampled GPR data can supplement hydrogeological data for estimating the spatial distribution of porosity and hydraulic conductivity over an aquifer. However, most of the time, the GPR surveys are performed along profiles (2D) and, when 3D models are seeked, the third spatial dimension is assessed by acquiring data over parallel profiles. This configuration is possible when the ground surface is clean and free of any obstacle but these conditions are seldom met in the field. Here, we show the results of a pseudo-3D acquisition protocol when spatial sampling cannot be done on a regular grid. The GPR reflection times are correlated with piezometric and stratigraphic information; cokriging of both data after some mathematical manipulation yields to an estimate of the hydraulic conductivity.

Citation Download Citation

Erwan Gloaguen, Michel Chouteau, and Denis Marcotte "New pseudo-3D GPR data method for hydraulic conductivity estimation over an unconfined aquifer", Proc. SPIE 4758, Ninth International Conference on Ground Penetrating Radar, (12 April 2002); https://doi.org/10.1117/12.462257

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