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You searched for id:"oai:tigerprints.clemson.edu:all_theses-4195". One record found.

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Clemson University

1. Hundley Jr., Jeffrey Britton. Application of Electrical Resistivity Geophysical Monitoring for Detection of Preferential Flow.

Degree: MS, Environmental Engineering and Earth Sciences, 2019, Clemson University

Preferential flow is a common occurrence during infiltration yet is often not accounted for in predictive flow models. This has implications for contaminant transport in that the extent of constituent plumes are often underestimated, thereby reducing the effectiveness of any remediation efforts. Electrical resistivity monitoring could be a useful tool to determine if infiltration is bypassing parts of the subsurface through preferential flow pathways and to better inform predictive models. The viability of this method was evaluated through simple electrical simulations and with multiple column experiments across scales using advanced observation techniques like 4D computed tomography. Electrical resistivity was used to monitor the progression of uniform wetting fronts as well as preferential flow and infiltration through macropore networks. Results indicate that certain characteristics in the response of apparent resistivity to preferential flow are distinct from uniform flow. Vertical bulk resistivity reduces rapidly as wetting in a macropore network increases the connectivity between electrodes. Strong positive spikes in electrical anisotropy are observed during preferential flow events and the arrival of a wetting front observed through resistivity monitoring occurs much earlier than predicted using bulk soil properties. These characteristics indicate that electrical resistivity monitoring is a viable method for the application of detecting preferential flow during infiltration in a heterogeneous system. Advisors/Committee Members: Brian Powell, Committee Chair, Stephen Moysey, Christophe Darnault.

Subjects/Keywords: Electrical resistivity; Geophysical monitoring; Hydrogeology; Macropore; Preferential flow

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Hundley Jr., J. B. (2019). Application of Electrical Resistivity Geophysical Monitoring for Detection of Preferential Flow. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/3188

Chicago Manual of Style (16th Edition):

Hundley Jr., Jeffrey Britton. “Application of Electrical Resistivity Geophysical Monitoring for Detection of Preferential Flow.” 2019. Masters Thesis, Clemson University. Accessed September 19, 2019. https://tigerprints.clemson.edu/all_theses/3188.

MLA Handbook (7th Edition):

Hundley Jr., Jeffrey Britton. “Application of Electrical Resistivity Geophysical Monitoring for Detection of Preferential Flow.” 2019. Web. 19 Sep 2019.

Vancouver:

Hundley Jr. JB. Application of Electrical Resistivity Geophysical Monitoring for Detection of Preferential Flow. [Internet] [Masters thesis]. Clemson University; 2019. [cited 2019 Sep 19]. Available from: https://tigerprints.clemson.edu/all_theses/3188.

Council of Science Editors:

Hundley Jr. JB. Application of Electrical Resistivity Geophysical Monitoring for Detection of Preferential Flow. [Masters Thesis]. Clemson University; 2019. Available from: https://tigerprints.clemson.edu/all_theses/3188

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