Hydrology

BucketScheme <: WaterFlow

"Bucket" water scheme for downward advective flow due to gravity.

DampedET{Tftr,Tfev,Tdtr,Tdev}

Corresponds to evapotranspiration scheme 2 described in section 2.2.4 of Westermann et al. (2022).

Evapotranspiration

Base type for parameterizations of evapotranspiration (ET).

HydraulicProperties

Default material hydraulic properties.

NoFlow <: WaterFlow

Represents a zero flow scheme

WaterBalance{TFlow<:WaterFlow,TET<:Union{Nothing,Evapotranspiration},Tdt,Taux,TProp} <: CryoGrid.SubSurfaceProcess

Represents subsurface water transport processes.

WaterBalanceProperties

Numerical constants shared across water balance implementations.

WaterFlow

Base type for different formulations of water flow in WaterBalance.

WaterTableInitializer <: VarInitializer{:sat}

Simple, piecewise constant initializer for saturation state that takes a surface-level saturation sat0 and water table depth z_tab and produces a two-segment, piecewise constant profile with the saturation level set to (sat0 + 1.0) / 2 from the halfway point down to the water table.

hydraulicconductivity!(sub::SubSurface, water::WaterBalance, state)

Computes hydraulic conductivities for the given subsurface layer and water balance scheme.

hydraulicproperties(::SubSurface)

Retrieves the hydraulic properties from the given subsurface layer.

maxwater(sub::SubSurface, ::WaterBalance) 
maxwater(sub::SubSurface, water::WaterBalance, state)
maxwater(::SubSurface, ::WaterBalance, state, i)

Returns the maximum volumetric water content (saturation point) for grid cell i.

minwater(::SubSurface, water::WaterBalance)
minwater(::SubSurface, water::WaterBalance, state, i)

Returns the minimum volumetric water content (typically field capacity for simplified schemes) for grid cell i. Defaults to zero.

watercontent!(::SubSurface, ::WaterBalance, state)

Computes the volumetric water content from current saturation or pressure state.

watercontent(::SubSurface, state)
watercontent(::SubSurface, state, i)

Returns the total water content θwi from the given subsurface layer and/or current state.

waterdensity(sub::SubSurface)

Retrieves the density of water ρw from the given SubSurface layer. Default implementation assumes that WaterBalance is provided as a field water on sub; this can of course, however, be overridden.