A Hydrologic-Geophysical Method for Characterizing Flow and Transport Processes within the Vadose Zone

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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 ... continued below

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Alumbaugh, David L. & Brainard, James R. June 30, 2004.

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Description

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.

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  • Other Information: PBD: 30 Jun 2004

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  • Report No.: EMSP-86890--2004
  • Grant Number: FG07-02ER63501
  • DOI: 10.2172/838688 | External Link
  • Office of Scientific & Technical Information Report Number: 838688
  • Archival Resource Key: ark:/67531/metadc780701

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  • June 30, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • June 10, 2016, 6:23 p.m.

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Alumbaugh, David L. & Brainard, James R. A Hydrologic-Geophysical Method for Characterizing Flow and Transport Processes within the Vadose Zone, report, June 30, 2004; United States. (https://digital.library.unt.edu/ark:/67531/metadc780701/: accessed March 23, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.