Third-order Integral Relation Between Sorptivity and Soil Water Diffusivity Using Brutsaert's Technique1
- J.-Y. Parlange,
- R. D. Braddock and
- I. Lisle2
Integral relationships between sorptivity and weighted mean diffusivity have been usually justified by numerical tests. Optimization provides a justification on more fundamental ground, when diffusivity increases rapidly with water content. The present paper presents a further improvement on the optimization result and its precision is discussed for two general classes of soil-water diffusivities. The result should be useful to predict soil-water diffusivity from sorptivity measurements, especially when it can be postulated that the diffusivity has a well-defined (e.g., exponential) functional dependence on the water content.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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