Advances in interpretation of subsurface processes with time‐lapse electrical imaging |
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| Authors: | K Singha F D Day‐Lewis T Johnson L D Slater |
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| Institution: | 1. Hydrologic Sciences and Engineering Program, Colorado School of Mines, Golden, CO, USA;2. Office of Groundwater, Branch of Geophysics, U.S. Geological Survey, Storrs, CT, USA;3. Pacific Northwest National Laboratory, Richland, WA, USA;4. Department of Earth and Environmental Sciences, Rutgers University ‐ Newark, Newark, NJ, USA |
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| Abstract: | Electrical geophysical methods, including electrical resistivity, time‐domain induced polarization, and complex resistivity, have become commonly used to image the near subsurface. Here, we outline their utility for time‐lapse imaging of hydrological, geochemical, and biogeochemical processes, focusing on new instrumentation, processing, and analysis techniques specific to monitoring. We review data collection procedures, parameters measured, and petrophysical relationships and then outline the state of the science with respect to inversion methodologies, including coupled inversion. We conclude by highlighting recent research focused on innovative applications of time‐lapse imaging in hydrology, biology, ecology, and geochemistry, among other areas of interest. Copyright © 2014 John Wiley & Sons, Ltd. |
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| Keywords: | electrical resistivity induced polarization complex resistivity imaging petrophysics inversion |
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