Diffusive Hillslope Evolution (ADI)
- Author: O.Conrad (c) 2013
- Menu: Simulation | Hillslope Evolution
Description
Simulation of diffusive hillslope evolution using an Alternating-Direction-Implicit (ADI) method.
References
- Pelletier, J.D. (2008): Quantitative Modeling of Earth Surface Processes. Cambridge, 295p.
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Elevation | grid, input | DEM | - | - |
| Channel Mask | grid, input, optional | CHANNELS | use a zero value for hillslopes, any other value for channel cells. | - |
| Output | Modelled Elevation | grid, output | MODEL | - | - |
| Elevation Difference | grid, output, optional | DIFF | - | - |
| Options | Grid System | grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Update | boolean | UPDATE | - | Default: 1 |
| Diffusivity [m2 / kyr] | floating point number | KAPPA | - | Minimum: 0.000000
Default: 10.000000 |
| Simulation Time [kyr] | floating point number | DURATION | - | Minimum: 0.000000
Default: 10000.000000 |
| Time Step | choice | TIMESTEP | - | Available Choices:
[0] user defined
[1] automatically
Default: 0 |
| Time Step [kyr] | floating point number | DTIME | - | Minimum: 0.000000
Default: 1000.000000 |
Command Line
Usage: saga_cmd sim_qm_of_esp 4 [-DEM ] [-CHANNELS ] [-MODEL ] [-DIFF ] [-UPDATE ] [-KAPPA ] [-DURATION ] [-TIMESTEP ] [-DTIME ]
-DEM: Elevation
grid, input
-CHANNELS: Channel Mask
grid, input, optional
-MODEL: Modelled Elevation
grid, output
-DIFF: Elevation Difference
grid, output, optional
-UPDATE: Update
boolean
Default: 1
-KAPPA: Diffusivity [m2 / kyr]
floating point number
Minimum: 0.000000
Default: 10.000000
-DURATION: Simulation Time [kyr]
floating point number
Minimum: 0.000000
Default: 10000.000000
-TIMESTEP: Time Step
choice
Available Choices:
[0] user defined
[1] automatically
Default: 0
-DTIME: Time Step [kyr]
floating point number
Minimum: 0.000000
Default: 1000.000000