# unsatfit
unsatfit is a Python library for optimizing parameters of functions of soil hydraulic properties; water retention function and unsaturated hydraulic conductivity function. The equations are explained in Seki et al. (2022) and shown to be useful for practical applications in Seki et al. (2023).
## Document
See the full document at https://arxiv.org/abs/2302.00472
See the quick reference at https://sekika.github.io/unsatfit/
## Example output
This is an example output of this program; water retention curve (top) and hydraulic conductivity curve (bottom) of Gilat loam fitted with KBC (KO<sub>1</sub>BC<sub>2</sub>-CH) model.
## SWRC Fit
SWRC Fit is a web interface which uses unsatfit and determines parameters for water retention function.
- [SWRC Fit](https://seki.webmasters.gr.jp/swrc/)
## Reference
* Seki, K., Toride, N., & Th. van Genuchten, M. (2022) Closed-form hydraulic conductivity equations for multimodal unsaturated soil hydraulic properties. Vadose Zone J. 21; e20168. https://doi.org/10.1002/vzj2.20168
* 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
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"description": "# unsatfit\n\nunsatfit is a Python library for optimizing parameters of functions of soil hydraulic properties; water retention function and unsaturated hydraulic conductivity function. The equations are explained in Seki et al. (2022) and shown to be useful for practical applications in Seki et al. (2023).\n\n## Document\n\nSee the full document at https://arxiv.org/abs/2302.00472\n\nSee the quick reference at https://sekika.github.io/unsatfit/\n\n## Example output\n\nThis is an example output of this program; water retention curve (top) and hydraulic conductivity curve (bottom) of Gilat loam fitted with KBC (KO<sub>1</sub>BC<sub>2</sub>-CH) model.\n\n![KBC](https://sekika.github.io/unsatfit/sample/KBC.png \"KBC\")\n\n## SWRC Fit\n\nSWRC Fit is a web interface which uses unsatfit and determines parameters for water retention function.\n\n- [SWRC Fit](https://seki.webmasters.gr.jp/swrc/)\n\n## Reference\n\n* Seki, K., Toride, N., & Th. van Genuchten, M. (2022) Closed-form hydraulic conductivity equations for multimodal unsaturated soil hydraulic properties. Vadose Zone J. 21; e20168. https://doi.org/10.1002/vzj2.20168\n* 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\n",
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