A close-up view of a heat-pulse flow-meter tool. The tool is used to determine the vertical flow-rate of ground water in boreholes at the site. This information is used to determine the hydraulic properties of fractures during ambient and pumping conditions.
Geophysical methods are developed and used to characterize and monitor environmental properties that influence or affect the transport and fate of contaminants in the environment. Emphasis is placed on providing increasingly quantitative spatial and temporal information about subsurface structure and the distribution of contaminants. The tools are used by environmental professionals to more efficiently characterize and manage contaminated sites.
Science Feature Articles
Investigations and Research Activities
- Time-lapse electrical geophysical monitoring of amendment emplacement for biostimulation: Johnson, T.C., Versteeg, R.J., Day-Lewis, F.D., Major, W., and Lane, J.W., Groundwater (IN PRESS).
- Borehole radar interferometry revisited: Liu, L., Ma, C., Lane, J.W., and Joesten, J.K., in Proceedings of the 15th International Conference on Ground Penetrating Radar--GPR 2014, Brussels, Belgium, June 30-July4, 2014, Universite Catholique de Louvain, Belgium, (IN PRESS).
- Anomalous solute transport in saturated porous Media--Relating transport model parameters to electrical and nuclear magnetic resonance properties: Swanson, R.D., Binley, A., Keating, K., France, S., Osterman, G., Day-Lewis, F.D., and Singha, K., 2015, Water Resources Research, v. 51, no. 2, p. 1264-1283, doi:10.1002/2014WR015284.
USGS scientists conducting a ground penetrating radar (GPR) survey at the south subsurface oil pool at the Bemidji, MN, Crude Oil Spill Research Site.
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