Sat_old

0th

Percentile

Capillary saturation function

Capillary saturation function of van Genuchten for unimodal or bimodal pore space distributions.

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

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

par.shp

named parameter in list or vector

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'): w2 [-]: weigthing between pore space distribution alfa2 [1/L]: van Genuchten parameter alfa for second pore space distribution n2 [-]: van Genuchten parameter n for second pore space distribution

References

Van Genuchten, M. T. (1980). A closed-form equation for predicting the hydraulic conductivity of unsaturated soils. Soil science society of America journal, 44(5), 892-898.

Durner, W. (1994). Hydraulic conductivity estimation for soils with heterogeneous pore structure. Water Resources Research, 30(2), 211-223.

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

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