Module Diffusive Hillslope Evolution (FTCS)
Simulation of diffusive hillslope evolution using a Forward-Time-Centered-Space (FTCS) method.
References:
Pelletier, J.D. (2008): Quantitative Modeling of Earth Surface Processes. Cambridge, 295p.
- Author: O.Conrad (c) 2013
- Specification: grid
- Menu: Simulation|Hillslope Evolution
Parameters
| Name | Type | Identifier | Description | Constraints |
Input | Elevation | Grid (input) | DEM | - | - |
Output | Modelled Elevation | Grid (output) | MODEL | - | - |
Elevation Difference (*) | Grid (optional output) | DIFF | - | - |
Options | Update | Boolean | UPDATE | - | Default: 1 |
Diffusivity [m2 / kyr] | Floating point | KAPPA | - | Minimum: 0.000000 Default: 1.000000 |
Simulation Time [kyr] | Floating point | DURATION | - | Minimum: 0.000000 Default: 100.000000 |
Time Step | Choice | TIMESTEP | - | Available Choices: [0] user defined [1] automatically Default: 1 |
Time Step [kyr] | Floating point | DTIME | - | Minimum: 0.000000 Default: 10.000000 |
Neighbourhood | Choice | NEIGHBOURS | - | Available Choices: [0] Neumann [1] Moore Default: 1 |
(*) optional |
Command-line
Usage: saga_cmd sim_qm_of_esp 0 [-DEM <str>] [-MODEL <str>] [-DIFF <str>] [-UPDATE <str>] [-KAPPA <str>] [-DURATION <str>] [-TIMESTEP <str>] [-DTIME <str>] [-NEIGHBOURS <str>]
-DEM:<str> Elevation
Grid (input)
-MODEL:<str> Modelled Elevation
Grid (output)
-DIFF:<str> Elevation Difference
Grid (optional output)
-UPDATE:<str> Update
Boolean
Default: 1
-KAPPA:<str> Diffusivity [m2 / kyr]
Floating point
Minimum: 0.000000
Default: 1.000000
-DURATION:<str> Simulation Time [kyr]
Floating point
Minimum: 0.000000
Default: 100.000000
-TIMESTEP:<str> Time Step
Choice
Available Choices:
[0] user defined
[1] automatically
Default: 1
-DTIME:<str> Time Step [kyr]
Floating point
Minimum: 0.000000
Default: 10.000000
-NEIGHBOURS:<str> Neighbourhood
Choice
Available Choices:
[0] Neumann
[1] Moore
Default: 1