Name

Default

Unit

Symbol

Comments/Explanations

UpperDepth

0

m

z

LowerDepth

0.1

m

z

m-value

1-1/gn

-

g_m

See eq.  (2.21).

n-value

1+λ

-

g_n

See eq. (2.21).

alpha

1/ψ_a

1/cm

α

See eq. (2.21).

Saturation

45

vol %

θ_s

Water content at saturation. See eq. (2.20).

Wilting Point

4

vol %

θ_wilt

Water content at wilting point (15 atm).

Residual Water

1

vol %

θ_r

Residual soil water content. See eq. (2.20).

Upper Boundary

8000

cm

ψ_x

Soil water pressured head at the upper boundary of Van Genuchten´s expression.