hydpar_hypres_tab: Mualem - van Genuchten Parameters from W?sten et al. 1999,...

In pschmidtwalter/brook90r: Run the LWF-Brook90 hydrological model from within R.

Description

Derives the MVG Parameters ThetaR, ThetaS, Alpha, n, Tort and Ksat from soil texture classes and bulk density values

Usage

hydpar_hypres_tab(tex.hypres, topsoil)

Arguments

tex.hypres	A character vector with soil texture values according to classes applied in W?sten et al. 2009
topsoil	logical Is the sample from the topsoil?

Value

A data.frame with the number of rows equal to length(tex.hypres) The data.frame contains the following variables:

ths

Saturation water content fraction

thr

Residual water content fraction

alpha

Alpha parameter of van Genuchten water retention function, m-1

npar

N parameter of van Genuchten water retention function

mpar

M parameter of van Genuchten water retention function

ksat

Saturated hyraulic conductivity parameter of Mualem hydraulic conductivity function, mm d-1

tort

Tortuosity parameter of Mualem hydraulic conductivity function

References

W?sten JHM, Lilly A, Nemes A, Le Bas C (1999) Development and use of a database of hydraulic properties of European soils. Geoderma 90, pp. 169-185

pschmidtwalter/brook90r documentation built on April 6, 2020, 6:35 p.m.