Sad

0th

Percentile

Relative saturation function

Relative saturation function for adsorptive water storage described by a piecwise linear function (Iden and Durner, 2014).

Usage
Sad(suc, par.shp, modality = c("uni"), suc.negativ = TRUE)
Arguments
suc

Suction/pressure heads. Negative if suc.negativ = TRUE

par.shp

named parameter of soil hydraulic properties in list or vector (see details)

modality

pore size distribution ('uni' or 'bi')

suc.negativ

set TRUE if suction/pressure heads are negative and FALSE if positive

Details

additional for bimodal (modality == 'bi'): alfa2 [1/L]: van Genuchten parameter alfa for second pore space distribution n2 [-]: van Genuchten parameter n for second pore space distribution

References

Iden, S., Durner, W. (2014). Comment to Simple consistent models for water retention and hydraulic conductivity in the complete moisture range by A. Peters. Water Resour. Res. 50, 7530<U+2013>7534.

Schneider, M., & Goss, K. U. (2012). Prediction of the water sorption isotherm in air dry soils. Geoderma, 170, 64-69.

Aliases
  • Sad
Documentation reproduced from package SoilHyP, version 0.1.3, License: GPL (>= 2)

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