spsh (version 1.1.0)

ptf.vG2BW: Parameter Transfer Function for Weber et al.(2019) model.

Description

Predicts Weber.2019spsh model parameters in the van Genuchten-Mualem variant 01110FM, from given van Genuchten-Mualem parameters for the constrained van Genuchten-Mualem model.

Usage

ptf.vG2BW(x)

Arguments

x

vector of 6 van Genuchten-Model parameters. The order is sensitive see for shypFun.01110

thr	Residual water content (-), alway equal to zero	ths
Saturated water content (-)	alf1	Shape parameter (cm^-1)
n1	Shape parameter (-)	Ks
Hydraulic conductivity at 0 potential (cm/day)	tau	Shape parameter (-)

Value

thsnc	Saturated water content of the non-capillary part.	thsc
Saturated water content of the capillary part.	alf	Shape parameter (cm^-1)
n	Shape parameter (-)	Ksc
Saturated hydraulic conductivity of the capillary part [cm day-1]	tau	Shape parameter (-)
Ksnc	Saturated hydraulic conductivity of the non-capillary part [cm day-1]	a
slope of the non-capillary unsaturated conductivity [ - ]	thsnc	Saturated water content of the non-capillary part.

Details

Pedotransfer function returns the van Genuchten - Mualem model shypFun.01110 parameters in the Brunswick-Model variant 01110FM, based on previously determined van Genuchten-Mualem parameters. The transfer function is based on an ordinary linear regression between the i-th 01110 and 01110FM. The paraemeters were based on model parameter estimation to a dataset of >400 samples with retention and conductivity measurements.

See Also

shypFun

Examples

# NOT RUN {
p      <- c(0.08, 0.42, 0.01, 1.5, 100, 0.5)
result <- ptf.vG2BW(p)

# }