Hydrogeophysical Characterization

     Surface and tomographic seismic and radar data are being collected at the site to provide information about the facies architecture and internal hydrological properties. Surface seismic and ground penetrating radar (GPR) data are being collected within a 2.5 dimensional grid across the site, and subsequently calibrated with wellbore data to refine the existing facies architecture at the site. The surface seismic data will also be processed to obtain estimates of acoustic impedance. Tomographic radar and seismic data are being collected at key locations along the surface traverses and used to estimate hydrological properties at the local scale. For this statistical analysis, co-located measurements of facies properties (available from analysis of core) and  borehole, CPT, flow meter, and slug test data will be compared with the tomographic geophysical attribute estimates to establish relationships between the hydrogeological and geophysical parameters. The tomographic data will then be used with the developed relationships and within a stochastic framework to provide high resolution estimates of the hydrological zonation for use within the dual domain model. Through integration of the crosshole and surface acoustic impedance data, we will extend the local-scale facies zonation interpretations to the site scale. Both surface and tomographic data quality are expected to be excellent.