Effect of hydraulic conductivity probability distribution function on simulated solute leaching

Richard A C Cooke, S. Mostaghimi, F. Woeste

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, the effect of fitting several different probability-distribution functions to hydraulic conductivity or pore-water velocity values, in the simulation of the movement of a noncreative solute through the soil, is evaluated. The simulation of solute transport in the soil was found to be sensitive to the distribution fitted to pore-water velocity. The log-Gaussian (log-normal) distribution, though traditionally used, is not necessarily the best distribution for characterizing the spatial variability of saturated hydraulic conductivity, pore-water velocity, or infiltrability. The upper tails of the simulated relative concentration series are best fitted by beta distributions, regardless of the input distribution used for pore-water velocity.

Original languageEnglish (US)
Pages (from-to)159-168
Number of pages10
JournalWater Environment Research
Volume67
Issue number2
DOIs
StatePublished - Jan 1 1995
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Chemistry
  • Water Science and Technology

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