Parameter

Description

qs0

Initial specific subsurface flow [m∙h⁻¹];

lnTe

Effectively saturated soil transmissivity logarithm [m²∙h⁻¹];

m

An exponential factor of the soil profile transmissivity decay [m];

Sr0

The initial level of reservoir representing vegetation [m];

$S_1^{*}$ = Srmax

The maximum level of reservoir representing vegetation [m];

td

Water permanence time in the unsaturated soil zone [h∙m⁻¹];

vch

Mean speed at the main channel [m∙h⁻¹];

vr

Mean surface runoff speed [m∙h⁻¹].

K0

Hydraulic conductivity just below the surface in saturated soil [m∙h⁻¹];

cd

Capillarity drive [m];

dt

Time step [h];

topographic index

Image of the topographic index of each grid point.