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    Steady shape analysis of tomographic pumping tests for characterization of aquifer heterogeneities

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    Issue Date
    2002-12-31
    Author
    Bohling, Geoffrey C.
    Zhan, Xiaoyong
    Butler, James J., Jr.
    Zheng, Li
    Publisher
    American Geophysical Union
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
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    Abstract
    [1] Hydraulic tomography, a procedure involving the performance of a suite of pumping tests in a tomographic format, provides information about variations in hydraulic conductivity at a level of detail not obtainable with traditional well tests. However, analysis of transient data from such a suite of pumping tests represents a substantial computational burden. Although steady state responses can be analyzed to reduce this computational burden significantly, the time required to reach steady state will often be too long for practical applications of the tomography concept. In addition, uncertainty regarding the mechanisms driving the system to steady state can propagate to adversely impact the resulting hydraulic conductivity estimates. These disadvantages of a steady state analysis can be overcome by exploiting the simplifications possible under the steady shape flow regime. At steady shape conditions, drawdown varies with time but the hydraulic gradient does not. Thus transient data can be analyzed with the computational efficiency of a steady state model. In this study, we demonstrate the value of the steady shape concept for inversion of hydraulic tomography data and investigate its robustness with respect to improperly specified boundary conditions.
    Description
    This is the published version. Copyright American Geophysical Union
    URI
    http://hdl.handle.net/1808/18975
    DOI
    https://doi.org/10.1029/2001WR001176
    Collections
    • Kansas Geological Survey Scholarly Works [39]
    Citation
    Bohling, Geoffrey C., Xiaoyong Zhan, James J. Butler, and Li Zheng. "Steady Shape Analysis of Tomographic Pumping Tests for Characterization of Aquifer Heterogeneities." Water Resources Research Water Resour. Res. 38.12 (2002): n. pag. DOI:10.1029/2001WR001176

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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