Model attributes (Subsidence Overlay): Difference between revisions

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The subsidence overlay also has [[attribute]]s. All attributes have a default value, but can be changed to configure the subsidence calculation.
The subsidence overlay also has [[attribute]]s. All attributes have a default value, but can be changed to configure the subsidence calculation.
{| class="wikitable"
 
! Attribute
{{overlay attributes|suppresscategory=true|allowselflinks=true|
! Description
{{:Parameter a (Subsidence Overlay)}}
! Default value
{{:Parameter b (Subsidence Overlay)}}
! Remark
{{:Parameter c (Subsidence Overlay)}}
|-
{{:Climate start temp (Subsidence Overlay)}}
| [[Parameter a (Subsidence Overlay)|PARAMETER_A]]
{{:Climate final temp (Subsidence Overlay)}}
| The A parameter in the [[#Oxidation Calculation|Oxidation formula]].
{{:Climate final temp (Subsidence Overlay)}}
| 0.023537
{{:Climate soil temp factor (Subsidence Overlay)}}
| This value is recalculated each 1-year time step of the calculation.
{{:Default clay thickness (Subsidence Overlay)}}
|-
{{:Default peat fraction (Subsidence Overlay)}}
| [[Parameter b (Subsidence Overlay)|PARAMETER_B]]
{{:Default top layer thickness (Subsidence Overlay)}}
| The B parameter in the [[#Oxidation Calculation|Oxidation formula]].
{{:Hi passive drainage (Subsidence Overlay)}}
| 0.01263
{{:Low passive drainage (Subsidence Overlay)}}
|
{{:Years (Subsidence Overlay)}}
|-
}}
| [[Parameter c (Subsidence Overlay)|PARAMETER_C]]
| The C parameter in the [[#Oxidation Calculation|Oxidation formula]].
| 0.00668
|
|-
| [[Climate start temp (Subsidence Overlay)|CLIMATE_START_TEMP]]
| The average temperature in the first year of the simulation.
| 10.1
|
|-
| [[Climate final temp (Subsidence Overlay)|CLIMATE_FINAL_TEMP]]
| The average temperature in the final year of the subsidence simulation.
| 10.7
|
|-
| [[Climate oxidation (Subsidence Overlay)|CLIMATE_OXIDATION]]
| The oxidation factor used to recalculate the climate values between 1-year calculation steps.
| 0.67
|
|-
| [[Climate soil temp factor (Subsidence Overlay)|CLIMATE_SOIL_TEMP_FACTOR]]
| The soil temperature factor used to recalculate the climate values between 1-year calculation steps.
| 0.5
|
|-
| [[Default clay thickness (Subsidence Overlay)|DEFAULT_CLAY_THICKNESS]]
| If no clay thickness value can be found in a particular grid cell, this value is used instead.
| 0.2
|
|-
| [[Default peat fraction (Subsidence Overlay)|DEFAULT_PEAT_FRACTION]]
| If no peat fraction value can be found in a particular grid cell, this value is used instead.
| 0.4
|
|-
| [[Default top layer thickness (Subsidence Overlay)|DEFAULT_TOP_LAYER_THICKNESS]]
| If no top layer value can be found in a particular grid cell, this value is used instead.
| 5.0
|
|-
| [[Hi passive drainage (Subsidence Overlay)|HI_PASSIVE_DRAINAGE]]
| When passive drainage is applied, the GHG (highest ground water level) is increased by this amount.
| -0.10
| Due to definitions "Increase" means that the distance between the surface and this ground water level increases. The default value causes the ground water level to come closer to the surface.
|-
| [[Low passive drainage (Subsidence Overlay)|LOW_PASSIVE_DRAINAGE]]
| When passive drainage is applied, the GLG (lowest ground water level) is increased by this amount.
| 0
| Due to definitions "Increase" means that the distance between the surface and this ground water level increases. The default value does not affect the ground water level.
|-
| [[Years (Subsidence Overlay)|YEARS]]
| The amount of years to simulate during the calculation, in 1-year steps. It's possible to set this value anywhere between 1 to 1000.
| 30
| This attribute is linked to one of the keys of the overlay. When this attribute is changed the key is changed as well.
|-
|}


{{SubsidenceOverlay_model_attribute_nav}}
{{SubsidenceOverlay_model_attribute_nav}}
[[Category:Subsidence Module Theory]]
[[Category:Subsidence Module Theory]]

Revision as of 12:30, 8 February 2021

The subsidence overlay also has attributes. All attributes have a default value, but can be changed to configure the subsidence calculation.

Parameter b (Subsidence Overlay) Parameter c (Subsidence Overlay)