At the Boise Hydrogeophysical Research Site (BHRS), we are characterizing the hydrogeophysical parameters of a cobble-and-sand, unconfined aquifer using a wide variety of geophysical methods. Our goal is to develop methods for mapping variations in permeability by combining non-invasive geophysical data with hydrologic measurements. We are using seismic, ground penetrating radar, and electrical methods in a variety of configurations to provide images of and parameter distributions at the BHRS. Issues such as resolution, depth of penetration, and the ability to image the desired parameters will help determine the most effective methods. Supporting data sets from the BHRS include core analyses and geophysical logs from 18 wells at the site. We will use these data to verify our geophysical interpretations. The various geophysical methods and acquisition geometries, combined with the well control, will provide an outstanding data set to characterize the heterogeneity of the subsurface beneath this alluvial aquifer, and find ways to map permeability with geophysical information.
This article was originally published by The Environmental and Engineering Geophysical Society (EEGS) in Symposium on the Application of Geophysics to Engineering and Environmental Problems 1999. Copyright restrictions may apply. https://doi.org/10.4133/1.2922632
Clement, William P.; Knoll, Michael D.; Liberty, Lee M.; Donaldson, Paul R.; Michaels, Paul; Barrash, Warren; and Pelton, John R. (1999). "Geophysical Surveys Across the Boise Hydrogeophysical Research Site to Determine Geophysical Parameters of a Shallow, Alluvial Aquifer". In Symposium on the Application of Geophysics to Engineering and Environmental Problems 1999 (pp. 399-408). The Environmental and Engineering Geophysical Society (EEGS). https://doi.org/10.4133/1.2922632