HYPAGS

HYdraulic Parameters And Grain Sizes - Version 1.4.0

Parameterization

Kozeny-Carman-based Beyer-Schweiger-based Hazen-based

Calculation Based On

K [m/s] d₁₀ [m] d₂₀ [m]

Input K [m/s]:

Results

K: -

d₁₀: -

d₂₀: -

d₅₀: -

d₆₀: -

nₑ: -

van Genuchten α: -

Δα: [up: - / low: -]

van Genuchten n: -

Δn: [up:- / low:-]

About HYPAGS

HYPAGS GUI (Version 1.4.0)

Aaron Peche
Federal Institute for Geosciences and Natural Resources, BGR

HYPAGS (HYdraulic Parameters And Grain Sizes) model enables to retrieve virtual sieve curves (by means of representative grain sizes d₁₀, d₂₀, d₅₀, d₆₀ [m]) and hydraulically relevant parameters effective porosity nₑ [-] and hydraulic conductivity K [m/s] by single input values of K, d₁₀, d₂₀.

⚠️ PLEASE NOTE: The model is valid for coefficients of uniformity Cᵤ <~ 3.

⚠️ PLEASE ALSO NOTE: The model assumes a residual water content of zero - please adjust the retention curve plot accordingly.

⚠️ PLEASE ALSO NOTE: For a more flexible use of HYPAGS, check out the pedon package by Martin Vonk: https://github.com/martinvonk/pedon

Cite as:

Peche A., & Houben, G. (2022). Estimating Characteristic Grain Sizes and Effective Porosity from Hydraulic Conductivity Data. Groundwater, Wiley. https://doi.org/10.1111/gwat.13266.

Peche, A., Houben, G., & Altfelder, S. (2024). Approximation of van Genuchten parameter ranges from hydraulic conductivity data. Groundwater, 62(3), Wiley 469-479. https://doi.org/10.1111/gwat.13365

License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The citation of the scientific work, above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

HYPAGS - HYdraulic Parameters And Grain Sizes

Published in: Peche A., & Houben, G. (2022). Estimating Characteristic Grain Sizes and Effective Porosity from Hydraulic Conductivity Data. Groundwater, Wiley. https://doi.org/10.1111/gwat.13266 Peche, A., Houben, G., & Altfelder, S. (2024). Approximation of van Genuchten parameter ranges from hydraulic conductivity data. Groundwater, 62(3), Wiley 469-479. https://doi.org/10.1111/gwat.13365