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.
{| class="wikitable"
! Attribute
! Description
! Default value
! Remark
|-
| A
| The A parameter in the [[#Oxidation Calculation|Oxidation formula]].
| 0,023537
| This value is recalculated between 1-year time steps of the calculation.
|-
| B
| The B parameter in the [[#Oxidation Calculation|Oxidation formula]].
| 0,01263
|
|-
| C
| The C parameter in the [[#Oxidation Calculation|Oxidation formula]].
| 0,00668
|
|-
| CLIMATE_FINAL_TEMP
| The final temperature in the final year of the total simulation time.
| 10,7
| This is the temperature at the end of the calculation. The last 1-year calculation step uses the temperature from the beginning of that year.
|-
| CLIMATE_OXIDATION
| The oxidation factor used to recalculate the climate values between 1-year calculation steps.
| 0,67
|
|-
| CLIMATE_SOIL_TEMP_FACTOR
| The soil temperature factor used to recalculate the climate values between 1-year calculation steps.
| 0,5
|
|-
| 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
| If no peat fraction value can be found in a particular grid cell, this value is used instead.
| 0,4
|
|-
| 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
| 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
| 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
| 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.
|-
|}
{{overlay attributes|suppresscategory=true|allowselflinks=true|
{{overlay attributes|suppresscategory=true|allowselflinks=true|


Revision as of 14:01, 17 November 2020

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

Attribute Description Default value Remark
A The A parameter in the Oxidation formula. 0,023537 This value is recalculated between 1-year time steps of the calculation.
B The B parameter in the Oxidation formula. 0,01263
C The C parameter in the Oxidation formula. 0,00668
CLIMATE_FINAL_TEMP The final temperature in the final year of the total simulation time. 10,7 This is the temperature at the end of the calculation. The last 1-year calculation step uses the temperature from the beginning of that year.
CLIMATE_OXIDATION The oxidation factor used to recalculate the climate values between 1-year calculation steps. 0,67
CLIMATE_SOIL_TEMP_FACTOR The soil temperature factor used to recalculate the climate values between 1-year calculation steps. 0,5
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 If no peat fraction value can be found in a particular grid cell, this value is used instead. 0,4
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 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 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 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.


{{overlay attributes|suppresscategory=true|allowselflinks=true|

Subsidence Module
Benchmarks button.png
Subsidence wiki2.png
Subsidence Overlay
Benchmarks button.png
Getting started button.png
Tutorials
Benchmarks button.png
Overview button.png
Overview
Benchmarks button.png
Theory button.png
Theory
Benchmarks button.png
Benchmarks button.png
Benchmarks
Group
Model
Overview • Calculation • Theory
Model attributes
Climate start temp • Climate final temp • Climate start year • Climate final year • Climate oxidation • Climate soil temp factor • Default clay thickness • Default peat fraction • Default top layer thickness • Active drainage factor • Hi passive drainage • Low passive drainage • Passive drainage factor • A • B • C • Years • Years per timeframe • Start year • Inundate land below water level
Related
Features • Rasters • Result type •  Subsidence Model


Subsidence Module
Benchmarks button.png
Subsidence wiki2.png
Subsidence Overlay
Benchmarks button.png
Getting started button.png
Tutorials
Benchmarks button.png
Overview button.png
Overview
Benchmarks button.png
Theory button.png
Theory
Benchmarks button.png
Benchmarks button.png
Benchmarks
Group
Model
Overview • Calculation • Theory
Model attributes
Climate start temp • Climate final temp • Climate start year • Climate final year • Climate oxidation • Climate soil temp factor • Default clay thickness • Default peat fraction • Default top layer thickness • Active drainage factor • Hi passive drainage • Low passive drainage • Passive drainage factor • A • B • C • Years • Years per timeframe • Start year • Inundate land below water level
Related
Features • Rasters • Result type •  Subsidence Model
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