shypFun.03110 {spsh} | R Documentation |
Calculates the soil hydraulic property function values based on given pressure heads. The function calculates the base function of Fredlund and Xing (Fredlund and Xing 1994).
shypFun.03110(p, h)
p |
vector of the 6 van Genuchten-Mualem model parameters, order is sensitve and has to be given as:
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h |
pressure heads [cm] for which the corresponding retention and conductivity values are calculated. |
The function numerically solves the spec. water capacity function and integral to Mualem's conductivity model.
returns a list
with calculations at specified h
:
theta |
calculated volumetric moisture content |
Se |
calculated saturation |
cap |
specific water capacity function |
psd |
pore size distribution |
Kh |
Hydraulic conductivity values |
Tobias KD Weber , tobias.weber@uni-hohenheim.de
Fredlund DG, Xing A (1994). “Equations for the soil-water characteristic curve.” Canadian Geotechnical Journal, 31(4), 521–532. ISSN 00083674 (ISSN), doi: 10.1139/t94-061.
p <- c(0.1, 0.4, 0.01, 2, 100, .5)
h <- 10^seq(-2, 6.8, length = 197)
shyp.L <- shypFun.03110(p, h)