Difference between revisions of "Process representation across tools"

From Hydromodel SA Wiki
Jump to navigation Jump to search
Line 3: Line 3:
 
== Canopy interception and evaporation vs throughfall ==
 
== Canopy interception and evaporation vs throughfall ==
 
{| class="wikitable"
 
{| class="wikitable"
! Process & algorithm description !! WRSM-Pitman  
+
! Algorithm description !! WRSM-Pitman  
 
(Sami GW)  
 
(Sami GW)  
! SPATSIM Pitman (Hughes GW) !! ACRU  
+
! SPATSIM-Pitman  
 +
(Hughes GW)  
 +
! ACRU  
 
(ACRU4)  
 
(ACRU4)  
 
! SWAT  
 
! SWAT  
 
(ArcSWAT2012)  
 
(ArcSWAT2012)  
 
! MIKE-SHE,  
 
! MIKE-SHE,  
semi-distributed & fully distributed
+
semi-distributed  
 +
 
 +
& fully distributed
 
|-
 
|-
 
| '''Algorithm inputs''' ||  
 
| '''Algorithm inputs''' ||  
Line 23: Line 27:
 
* Cover properties: max interception or LAI
 
* Cover properties: max interception or LAI
 
* Canopy storage (state)  
 
* 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''
+
| rowspan="3" | ''Canopy interception is not explicitly modelled''  
 +
''when using daily timestep modelling.''  
 +
 
 +
''It is implicitly considered in the'' ''‘initial abstraction’,''  
 +
 
 +
''see infiltration & surface runoff below''
 
|  
 
|  
 
* Rain
 
* Rain

Revision as of 22:29, 27 April 2021

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

Canopy interception and evaporation vs throughfall

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.

It is implicitly considered in the ‘initial abstraction’,

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)