Articles | Volume 27, issue 7
https://doi.org/10.5194/hess-27-1565-2023
https://doi.org/10.5194/hess-27-1565-2023
Research article
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17 Apr 2023
Research article | Highlight paper |  | 17 Apr 2023

Prediction of the absolute hydraulic conductivity function from soil water retention data

Andre Peters, Tobias L. Hohenbrink, Sascha C. Iden, Martinus Th. van Genuchten, and Wolfgang Durner

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Latest update: 27 Feb 2024
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The study proposes a new approach to characterize soil hydraulic functions. The novel approach strongly improves simulation results. This is a significant advancement of vadose zone hydrology.
Short summary
The soil hydraulic conductivity function is usually predicted from the water retention curve (WRC) with the requirement of at least one measured conductivity data point for scaling the function. We propose a new scheme of absolute hydraulic conductivity prediction from the WRC without the need of measured conductivity data. Testing the new prediction with independent data shows good results. This scheme can be used when insufficient or no conductivity data are available.