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Volume 16 Issue 7, July 2017



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  • ORIGINAL RESEARCH up

    • C.J.M. Cremer, C. Schuetz, I. Neuweiler, P. Lehmann and E.H. Lehmann
      Unstable Infiltration Experiments in Dry Porous Media
      Core Ideas
      • Gravity-driven flow was studied in the presence of lenticular heterogeneity.
      • The importance of finger impingement position on heterogeneities was emphasized.
      • These experiments present a data set for testing of extended Richards’ models.
      doi:10.2136/vzj2016.10.0092
      Vadose Zone Journal 2017 16:
      [ Abstract ][ Full Text ] [ PDF ] [ Tables Only ] [ Figures Only ] [ Get Permissions ] [ Dataset 1 ]
    • Travis L. McLing, William Brandon, Bernie Zavata, Robert W. Smith, Casey Smith, Trent Armstrong and Michael Carpenter
      The Application of Radon for Mapping Open Fracture Networks in a Thin Vadose Zone
      Core Ideas
      • Locating preferential pathways for infiltration is critical for contaminated fractured rock aquifers.
      • Mapping open fractures in buried bedrock formations has been marginally successful and costly.
      • Mapping at greater resolution and lower cost can be valuable for many fractured-rock sites.
      • We used CR-39 particle track 222Rn detector technology in a simple passive sampling design.
      • Our methodology is characterized by low cost and ease of deployment.
      doi:10.2136/vzj2016.11.0116
      Vadose Zone Journal 2017 16:
      [ Abstract ][ Full Text ] [ PDF ] [ Tables Only ] [ Figures Only ] [ Get Permissions ]
    • Zhuangji Wang, Robert Schwartz, Yuki Kojima, Yan Chen and Robert Horton
      A Comparison of Second-Order Derivative Based Models for Time Domain Reflectometry Waveform Analysis
      Core Ideas
      • Two methods, AWIGF and second-order BMO, were evaluated on long- and short-probe TDR waveforms.
      • A corner-preserving filter was designed to improve the performance of AWIGF.
      • With the new filter, AWIGF performance was consistent with second-order BMO analysis.
      doi:10.2136/vzj2017.01.0014
      Vadose Zone Journal 2017 16:
      [ Abstract ][ Full Text ] [ PDF ] [ Figures Only ] [ Get Permissions ]
    • Mojtaba Naderi-Boldaji, Mostafa Bahrami, Thomas Keller and Dani Or
      Characteristics of Acoustic Emissions from Soil Subjected to Confined Uniaxial Compression
      Core Ideas
      • Acoustic emissions (AEs) reveal information on soil deformation processes.
      • We studied AEs during loading–unloading–reloading cycles under confined compression.
      • The number of AE hits reflected well the soil deformation regimes.
      • Soil compression and swelling indices correlate with AE parameters.
      • The Gutenberg–Richter power law b value varied with wet soil yield stress.
      doi:10.2136/vzj2017.02.0049
      Vadose Zone Journal 2017 16:
      [ Abstract ][ Full Text ] [ PDF ] [ Tables Only ] [ Figures Only ] [ Get Permissions ]
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