SWRC Fit

SWRC Fit puede ajustar diferentes modelos de curva de retención de agua del suelo a los valores medidos. Copie sus datos de medida (presión, contenido de agua) en el cuadro de texto de abajo y pulse el botón "Calcular". Antes de usar sus datos originales, puede ver como funciona la aplicación seleccionado diferentes tipos de suelos en el menu desplagable.

Model selection

Brooks and Corey
van Genuchten
Kosugi
Fredlund and Xing
dual-BC-CH
VG₁BC₂-CH
dual-VG-CH
KO₁BC₂-CH
dual-BC
dual-VG
dual-KO

Figure option
Show only one model

la curva de retención de agua del suelo

Show more options (Update on 2024-06-04)

[News]

This is a completely new version of SWRC Fit with bimodal models in this publication.
Improvement of dual-VG model was implemented.
Please also check UNSODA viewer, unsatfit and hystfit.

Format of input data

As in the sample data, each line of numeric data represents a set of measured (h, θ) in this order. Any unit can be used.
For each line, parameters are separated with space, tab, or comma (,).
When there are more than 2 numbers only the first 2 numbers are read.
Lines not beginning with numbers are not regarded as measured data.

Sample output

Lyss, Switzerland (UNSODA 2760)
Texture: Silty loam
List of figures

Citation

Please cite this paper when you publish your work using this program, SWRC Fit or unsatfit. SWRC Fit uses unsatfit library.

Seki, K., Toride, N., & Th. van Genuchten, M. (2023) Evaluation of a general model for multimodal unsaturated soil hydraulic properties. J. Hydrol. Hydromech. 71(1): 22-34. https://doi.org/10.2478/johh-2022-0039

Acknowledgement

Sample data is from UNSODA database of unsaturated soil hydraulic properties developed by US Salinity Laboratory. See UNSODA viewer for more data.
Dr. David Moret-Fernandez corrected Spanish.

Question

Please send questions and bug reports to Q&A at unsatfit Discussions. Get GitHub account, sign in, and press the green "New discussion" button. I will reply by comment. It is preferable to send your question publicly this way, because other people having the same question can find answer on the web. However, if your question is confidential, for example when it includes your unpublished data, please contact me by email. You can find my email address in this paper.

SWRC Fit with unsatfit version 5.2 created by Katsutoshi Seki running with Python 3.11.2 on Linux. Run local server.

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