Process representation across tools

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process representation overview tables - links to more specific pages about individual processes?

Canopy interception and evaporation vs throughfall

Process & algorithm description WRSM-Pitman (Sami GW) SPATSIM Pitman (Hughes GW) ACRU (ACRU4) SWAT (ArcSWAT2012) MIKE-SHE semi-distributed MIKE-SHE fully distributed
Function of Rain, cover properties Rain, cover properties Rain, PET, cover properties, canopy storage (state) not explicit – part of ‘initial abstraction’ calculation, see infiltration & surface runoff below Rain, PET, cover properties, canopy storage (state) Rain, PET, cover properties, canopy storage (state)
Rainfall, Rainfall, Rainfall, Rainfall, Rainfall,
canopy storage (state) canopy storage (state) canopy storage (state)
max interception max interception max interception (or LAI) LAI, interception coeff, LAI, interception coeff,
PET PET PET
Function type exponential & threshold exponential & threshold threshold threshold threshold
Thresholds? yes yes yes yes yes
(interception capacity - calculated) (interception capacity - calculated) (interception capacity - input) (interception capacity - input) (interception capacity - input)

Infiltration into soil moisture (SM)

Surface water generation of landscape units

Surface runoff to channel network

Evapotranspiration (ET) from soil moisture (SM)

Evapotranspiration (ET) from groundwater (GW)