• DOI:10.1029/WR024I005P00755
• Corpus ID: 129366485

Developing joint probability distributions of soil water retention characteristics

@article{Carsel1988DevelopingJP,
  title={Developing joint probability distributions of soil water retention characteristics},
  author={Robert F. Carsel and Rudolph S. Parrish},
  journal={Water Resources Research},
  year={1988},
  volume={24},
  pages={755-769}
}

• R. Carsel, R. Parrish
• Published 1 May 1988
• Environmental Science
• Water Resources Research

A method is presented for developing probability density functions for parameters of soil moisture relationships of capillary head [h(θ)] and hydraulic conductivity [K(θ)]. These soil moisture parameters are required for the assessment of water flow and solute transport in unsaturated media. The method employs a statistical multiple regression equation proposed in the literature for estimating [h(θ)] or [K(θ)] relationships using the soil saturated water content and the percentages of sand and clay. In the absence of known statistical distributions for either [h(θ)] or [K(θ)] relationships, the method facilitates modeling by providing variability estimates that can be used to examine the uncertainty associated with water flow or solute transport in unsaturated media.