SWRC Fit

SWRC Fit 能够拟合多种水分特征曲线的模型，测量水分特征数据。在下面的文本框中复制土壤水分特征数据 (压力，含水量)，然后按“计算”按钮。使用原始数据之前，从下拉菜单中选择样本数据可以看到它是如何工作的。

[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

Hanford, WA, USA (UNSODA 2243)
Texture: Sandy 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

感谢

Sample data is from UNSODA database of unsaturated soil hydraulic properties developed by US Salinity Laboratory. See UNSODA viewer for more data.
Dr. Li Wang corrected Chinese.

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 However, if your question is confidential, for example when it includes your unpublished data, please contact me by email.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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