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The role of moisture fluctuations in unsaturated transport

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Abstract

Within the framework of stochastic theory and the spectral perturbation techniques, three-dimensional dispersion in partially saturated soils with a finite correlation scale of log-hydraulic conductivity is analyzed. The effects of spatial variability of the moisture distribution parameter on the asymptotic spreading behavior of a unsaturated solute plume are assessed. This is accomplished by comparing two asymptotic macrodispersivities and two variance of solute concentration, obtained for a constant moisture content and spatially varied moisture, respectively.

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Authors and Affiliations

  1. Utah Water Research Laboratory, Utah State University, USA

    Ching-Min Chang & Marian W. Kemblowski

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  1. Ching-Min Chang
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  2. Marian W. Kemblowski
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Chang, CM., Kemblowski, M.W. The role of moisture fluctuations in unsaturated transport. Stochastic Hydrol Hydraul 11, 129–143 (1997). https://doi.org/10.1007/BF02427912

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  • DOI: https://doi.org/10.1007/BF02427912

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