Difference between revisions of "Process representation across tools"

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process representation overview tables - links to more specific pages about individual processes?  
+
process representation OVERVIEW tables - links to more specific pages about individual processes?  
  
 
== Canopy interception and evaporation vs throughfall ==
 
== Canopy interception and evaporation vs throughfall ==
 
{| class="wikitable"
 
{| class="wikitable"
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! Process & algorithm description !! WRSM-Pitman (Sami GW) !! SPATSIM Pitman (Hughes GW) !! ACRU (ACRU4) !! SWAT (ArcSWAT2012) !! MIKE-SHE semi-distributed !! MIKE-SHE fully distributed
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! Process & algorithm description !! WRSM-Pitman  
 +
(Sami GW)  
 +
! SPATSIM Pitman (Hughes GW) !! ACRU  
 +
(ACRU4)  
 +
! SWAT  
 +
(ArcSWAT2012)  
 +
! MIKE-SHE,
 +
semi-distributed & fully distributed
 
|-
 
|-
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| General inputs || 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)
+
| '''Algorithm inputs''' ||  
−
|-
+
* Rain
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| Specific inputs || Rainfall, max interception  || Rainfall, max interception  || Rainfall, canopy storage (state), max interception (or LAI), PET ||  || Rainfall, canopy storage (state), LAI, interception coefficient, PET || Rainfall, canopy storage (state), LAI, interception coefficient, PET
+
* Cover properties: max interception
 +
|  
 +
* Rain
 +
* Cover properties: max interception
 +
|  
 +
* Rain
 +
* PET
 +
* Cover properties: max interception or LAI
 +
* Canopy storage (state)  
 +
| rowspan="3" | ''Canopy interception is not explicitly modelled''
 +
''when using daily timestep modelling,''
 +
 
 +
''but is implicitly considered in the''
 +
 
 +
''‘initial abstraction’ calculation,''
 +
 
 +
''see infiltration & surface runoff below''
 +
|  
 +
* Rain
 +
* PET
 +
* Cover properties: LAI & canopy interception coefficient
 +
* Canopy storage (state)
 
|-
 
|-
−
| Function type || exponential & threshold || exponential & threshold || threshold ||  || threshold  || threshold  
+
| '''Function type''' || exponential & threshold || exponential & threshold || threshold || threshold
 
|-
 
|-
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| Thresholds? || yes:  interception capacity (calculated) || yes:  interception capacity (calculated) || yes:  interception capacity (input) ||  || yes:  interception capacity (input) || yes:  interception capacity (input)
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| '''Thresholds''' || yes:   
 +
timestep interception capacity (calculated)  
 +
| yes:   
 +
timestep interception capacity (calculated)  
 +
| yes:   
 +
timestep interception capacity (calculated)  
 +
| yes:   
 +
timestep interception capacity (calculated))
 
|}
 
|}
  

Revision as of 22:25, 27 April 2021

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 & fully distributed

Algorithm inputs
  • Rain
  • Cover properties: max interception
  • Rain
  • Cover properties: max interception
  • Rain
  • PET
  • Cover properties: max interception or LAI
  • Canopy storage (state)
 Canopy interception is not explicitly modelled

when using daily timestep modelling,

but is implicitly considered in the

‘initial abstraction’ calculation,

see infiltration & surface runoff below

  • Rain
  • PET
  • Cover properties: LAI & canopy interception coefficient
  • Canopy storage (state)
Function type exponential & threshold exponential & threshold threshold threshold
Thresholds yes:

timestep interception capacity (calculated)

yes:

timestep interception capacity (calculated)

yes:

timestep interception capacity (calculated)

yes:

timestep interception capacity (calculated))

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)

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