Estimating Soil Hydraulic Parameters of a Field Drainage Experiment Using Inverse Techniques

Inverse Estimation of Soil Hydraulic and Solute Transport Parameters from Transient Field Experiments: Heterogeneous Soil

While inverse parameter estimation techniques for determining key parameters affecting water flow and solute transport are becoming increasingly common in saturated and unsaturated zone studies, their application to practical problems, such as irrigation, have received relatively little attention. In this article, we used the Levenberg–Marquardt optimization algorithm in combination with the HY...

estimation of soil hydraulic parameters using double-ring infiltrometer data via inverse method

in this study, hydrus2d/3d software was used to estimate the hydraulic parameters of van genuchten-mualem model via inverse modeling using double-ring infiltrometers data in 3 different soil textures. nine scenarios of inverse modeling (divided in three groups) were considered with different number (5, 4 and 3) of fitted hydraulic parameters for optimization. in the first group, simulation was ...

Determination of unsaturated hydraulic conductivity by internal drainage assuming a uniform soil water profile

Evaporation experiment to determine soil hydraulic properties

Novel evaporation experiment to determine soil hydraulic properties K. Schneider, O. Ippisch, and K. Roth Institute of Environmental Physics, University of Heidelberg, Heidelberg, Germany Interdisciplinary Center for Scientific Computing, University of Heidelberg, Heidelberg, Germany Received: 24 April 2006 – Accepted: 27 April 2006 – Published: 29 June 2006 Correspondence to: K. Schneider (kla...

On the Identification of Soil Hydraulic Parameters

Drainage experiments are commonly conducted to determine soil hydraulic parameters. Experiments generally measure the temporal evolution of the cumulative outflow as well as pressure heads and water contents at several levels in the column. Then the analysts try to calibrate the model by fitting the model response to the data series. The aim of the present work is to investigate the quality of ...