An integrated hydrogeophysical approach to subsurface characterization
نویسندگان
چکیده
Detailed knowledge of the subsurface is a prerequisite for the planning of effective site remediation. Conventional investigation of contaminated sites is based mainly on observations from wells. However, practical limitations on the number of wells mean that characterization of the subsurface based on borehole data alone leads to uncertainties in determining the hydrogeological parameters and limits the identification of structures relevant for groundwater flow and contaminant transport. The combination of high-resolution geophysical methods, such as seismic and electrical tomography, with hydrogeological borehole information as presented here, allows a more detailed description of subsurface heterogeneities. To link the geophysical data with the hydrogeological parameters a method of multivariate statistics is used, which can also take uncertainty in the data into account. The integrated hydrogeophysical approach is illustrated using a synthetic data set.
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