A Hydrologic-Geophysical Method for Characterizing Flow and Transport Processes within the Vadose Zone
The research objective of this project is to analyze the resolution of two different geophysical imaging techniques (electrical resistivity tomography and cross-borehole ground penetrating radar) for monitoring subsurface flow and transport processes within the vadose zone. This is being accomplished through a coupled approach involving large scale unsaturated flow modeling, petrophysical conversion of the resulting hydrologic properties to a geophysical property model and generation of synthetic geophysical data, followed by the inversion of the synthetic geophysical data. The resolution, benefits, and limitations of the geophysical techniques will then be ascertained through analysis and comparison of the images to the original hydrologic model. In addition, increasing levels of complexity will be added to the models as the project progresses through the addition of heterogeneity in the original hydrologic property model, and through uncertainty in the petrophysical relationship that couples the geophysical model to the hydrologic simulation.
- Research Organization:
- University of Wisconsin at Madison, Madison, WI; Sandia National Laboratories, Albuquerque, NM (US)
- Sponsoring Organization:
- USDOE Office of Science (SC) (US)
- DOE Contract Number:
- FG07-02ER63501
- OSTI ID:
- 838688
- Report Number(s):
- EMSP-86890-2004; R&D Project: EMSP 86890; TRN: US200508%%365
- Resource Relation:
- Other Information: PBD: 30 Jun 2004
- Country of Publication:
- United States
- Language:
- English
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A Resolution Analysis of Two Geophysical Imaging Methods For Characterizing and Monitoring Hydrologic Conditions in the Vadose Zone
A resolution analysis of two geophysical imaging methods for characterizing and monitoring hydrologic conditions in the Vadose zone.